New Product Briefs

These innovative products are fully released. With production quantities normally available from stock, they are suitable for use in today's high-volume designs. Click on model numbers for data sheets and other information. Click on thumbnail images to view larger versions. This page highlights products that have been released in the past twelve months. Products that have been released in the two most recent months are flagged as .

 

Accelerometers, Gyros, and Temp Sensors

Amplifiers and Comparators

Analog Microcontrollers

Analog-to-Digital Converters

Audio/Video Products

Digital-to-Analog Converters

Embedded Processing and DSP

Interface

Power and Thermal Management

References

RF, IF, Broadband, and Wireless

Switches and Multiplexers

Accelerometers, Gyros, and Temperature Sensors

November 2009

Programmable yaw-rate Gyroscope has digital output

adis16265The ADIS16265 iSensor® angular-rate measurement system combines an iMEMS® yaw-rate gyroscope with embedded signal processing to provide a compact, factory-calibrated, tunable digital sensor with an SPI-compatible output. Sampling at up to 2.048 ksps, it measures angular rate about the Z-axis—with ±80°/s, ±160°/s, ±320°/s range settings—as well as temperature, supply voltage, and the voltage on an auxiliary input. Functionally complete, it includes an auxiliary 12-bit DAC, 2.5-V reference, digital self-test, configurable alarms, and programmable power management. Sample rate, bandwidth, and alarm thresholds are all digitally programmable. Sensitivity and bias are calibrated over the full specified temperature range of –40ºC to 85ºC. Operating with a single 4.75-V to 5.25-V supply, the ADIS16265 consumes 41 mA in normal mode, 17 mA in low-power mode, and 350 μA in sleep mode. Available in a 20-terminal LGA package, it is priced at $56.57 in 1000s.

October 2009

Six-degrees-of-freedom Inertial Sensing System

adis16362The ADIS16362 complete six-degrees-of-freedom inertial sensing system includes a 3-axis gyroscope with range settings of ±75°/s, ±150°/s, and ±300°/s; a 3-axis accelerometer with ±1.7-g range; and a temperature sensor. It provides 14-bit digital data proportional to the angular rate about—and the acceleration along—the X-, Y-, and Z-axes—and 12-bit digital data proportional to the on-chip temperature, power-supply voltage, and voltage on an auxiliary analog input. An auxiliary 12-bit DAC has a 2.5-V full-scale output range. The device is fully calibrated for sensitivity, bias, axial alignment, and linear acceleration; and dynamically compensated from –20°C to +70°C. Functionally complete, it includes programmable self-test, power management, and alarms. All data and commands are communicated via an SPI-compatible serial interface. Operating on a single 4.75-V to 5.25-V supply, the ADIS16362 consumes 49 mA in normal mode, 24 mA in low-power mode, and 500 μA in sleep mode. Available in a 24-lead, 23-mm × 23-mm × 23-mm compact module, it is specified from –40°C to +105°C and priced at $336.00 in 1000s.

September 2009

Low-power, 3-axis Accelerometers in small, low-profile packages

The ADXL327/ADXL325/ADXL326 complete, low-power, analog-output, 3-axis accelerometers measure dynamic acceleration (motion, shock, or vibration) and static acceleration (tilt or gravity) over ±2-/±5-/±16-g ranges, with 0.2/0.2/0.3% nonlinearity and 0.01%/°C temperature stability. Measurement bandwidths can be selected to suit the application, from 0.5 Hz to 1600 Hz for X- and Y-axes, and from 0.5 Hz to 550 Hz for the Z-axis. Housed in small, low-profile, 16-lead LFCSP packages, they can survive 10,000-g shocks. Operating on a single 1.8-V to 3.6-V supply, the ADXL327/25/26 consume 350 μA. They are specified from –40°C to +85°C and priced at $2.38 in 1000s.

July 2009

3-axis, ±2-/±4-/±8-/±16-g Digital Accelerometer

The ADXL345 low-power, digital-output, 3-axis accelerometer measures dynamic acceleration (motion, shock, and vibration) and static acceleration (tilt and gravity) over a user-selectable ±2-/±4-/±8-/±16-g range, with 10-/11-/12-/13-bit max resolution, 0.5% nonlinearity, and 0.01%/°C temperature stability. Output data rates from 6.25 Hz to 3200 Hz can be selected to suit the application. Special built-in motion-detection functions—including activity-, tap-, and free-fall sensing—can be mapped to interrupt-output pins. A 32-level FIFO minimizes host processor intervention. Data is available via SPI- and I2C-compatible serial interfaces. Housed in a small, low-profile, 3-mm × 5-mm × 1-mm package, the device can survive 10,000-g shocks. Operating on a single 2.0-V to 3.6-V supply, the ADXL345 draws 145 μA at 100 Hz, 40 µA at 10 Hz, and 0.1 µA in standby mode. Specified from –40°C to +85°C, it is priced at $3.04 in 1000s.

June 2009

Low-power, programmable Impact Sensor and Recorder

The ADIS16240 programmable impact sensor and recorder provides 10-bit data proportional to: the acceleration along X-, Y-, and Z axes; peak acceleration along these axes; supply voltage; on-chip temperature; and voltage on an auxiliary input—as well as 12-bit data proportional to the peak sum-of-squares of X-, Y-, and Z-axis acceleration—with ±19-g full-scale range and 51.4-mg/LSB sensitivity. The programmable event recorder can be triggered internally, providing continuously sampled data—or externally, based on two comparator inputs. Each event captures acceleration data, as well as supply voltage, temperature, and time. User-configurable functions include trigger threshold, capture length, pretrigger data, data storage, sample rate, and alarms. All data and commands are transmitted via an SPI-compatible serial interface. Operating on a single 2.4-V to 3.6-V supply, the ADIS16240 consumes 1 mA in normal mode and 100 μA in sleep mode. Available in a 12-mm × 12-mm, 112-ball PBGA package, it is specified from –40°C to +105°C and priced at $26.58 in 1000s.

Three-axis Accelerometer, Gyroscope, and Magnetometer

The ADIS16400 complete inertial sensing system includes: a 3-axis gyroscope with ±75°/s, ±150°/s, and ±300°/s range settings; a 3-axis accelerometer with ±18-g range; a 3-axis magnetometer with ±2.5-gauss range; and a local temperature sensor. It provides 14-bit digital data proportional to the angular rate, acceleration, and magnetic field on the X-, Y-, and Z axes—and 12-bit digital data proportional to the on-chip temperature, power-supply voltage, and voltage on an auxiliary analog input. An auxiliary DAC provides an analog output with 12-bit resolution and 3.3-V full-scale range. The device is fully calibrated for sensitivity, bias, axial alignment, and linear acceleration. Functionally complete, it includes programmable self-test, power management, and alarms. All data and commands are communicated via an SPI-compatible serial interface. Operating on a single 4.75-V to 5.25-V supply, the ADIS16400 consumes 70 mA in normal mode, 45 mA in low-power mode, and 600 μA in sleep mode. Available in a 24-lead, 23-mm × 23-mm × 23-mm compact module, it is specified from –40°C to +105°C and priced at $320.00 in 1000s.

16-bit Digital Temperature Sensors are accurate to ±0.5°C

The ADT7310 and ADT7410 high-accuracy digital temperature sensors comprise a band-gap temperature sensor and a sigma-delta ADC to measure ambient temperature from –55°C to +150°C. The ADC resolution, set to 13 bits by default (0.06°C resolution), can be changed to 16 bits (0.0078°C resolution). The specified accuracy is ±0.5°C from –40°C to +105°C and ±0.7°C from –55°C to +150°C. Two open-drain outputs, CT and INT, can operate in either comparator or interrupt mode. CT is active when the temperature exceeds a programmable critical temperature; INT is active when the temperature is outside of a programmable window. Data and commands are communicated via an SPI-compatible interface (ADT7310) or an I2C-compatible interface (ADT7410). Operating on a single 2.7-V to 5.5-V supply, the ADT7310/7410 consume 210 μA in normal mode and 2 μA in shutdown mode. Available in 8-lead SOIC packages, they are priced at $1.95 in 1000s.

May 2009

Three-axis Accelerometer, Gyroscope, and Magnetometer

The ADIS16405 complete inertial sensing system includes a 3-axis gyroscope with ±75°/s, ±150°/s, and ±300°/s range settings; a 3-axis accelerometer with ±18-g range; a 3-axis magnetometer with ±2.5-gauss range; and a local temperature sensor. It provides 14-bit digital data proportional to the angular rate, acceleration, and magnetic field on the X-, Y-, and Z-axes—and 12-bit digital data proportional to the on-chip temperature, power-supply voltage, and voltage on an auxiliary analog input. An auxiliary DAC provides an analog output with 12-bit resolution and 3.3-V full-scale range. The device is fully calibrated for sensitivity, bias, axial alignment, and linear acceleration; and dynamically compensated from –40°C to 85°C. Functionally complete, it includes programmable self-test, power management, and alarms. All data and commands are communicated via an SPI-compatible serial interface. Operating on a single 4.75-V to 5.25-V supply, the ADIS16405 consumes 70 mA in normal mode, 45 mA in low-power mode, and 600 μA in sleep mode. Available in a 24-lead, 23-mm × 23-mm × 23-mm compact module, it is priced at $412.00 in 1000s.

Yaw-Rate Gyroscope

The ADXRS622 gyroscope uses surface micromachining—the same process used to make high-volume, high-reliability accelerometers—to produce a low-cost, functionally complete angular-rate sensor—and integrates it with all of the signal-conditioning electronics required to produce a stable output voltage proportional to the angular rate about the Z-axis. The output is ratiometric to an external reference, with 7-mV/°/s sensitivity over a ±250°/s measurement range (5-V reference). Bandwidths from 0.01 Hz to 2500 Hz can be set by an external capacitor. The temperature output allows the sensor to be calibrated over temperature, and the device’s self-test inputs provide electromechanical excitation to test for proper operation of the sensor and signal-conditioning circuits. Designed for automobile rollover sensors, inertial measurement units, and platform stabilization, the device can survive 2000-g powered shocks. Operating on a single 4.75-V to 5.25-V supply, the ADXRS622 consumes 3.5 mA. Available in a 32-ball CBGA package, it is specified from –40°C to 105°C and priced at $19.98 in 1000s.

March 2009

High-performance, wideband Accelerometer

The ADXL001 single-axis iMEMS accelerometer is available with ±70-g, ±250-g, and ±500-g full-scale ranges. Sensitive to acceleration along the X-axis, it specifies 22-kHz bandwidth, 0.1% linearity, and 4-mg/rt-Hz noise. Its wide bandwidth, small size, and low power make it deal for monitoring shock and vibration in industrial, medical, and military applications. A self-test function verifies the full electromechanical signal chain. Operating on a single 3-V to 6-V supply, the ADXL001 consumes 2.5 mA at 3.3 V and 4.5 mA at 5 V. Available in an 8-lead LCC package, it is specified from –40°C to +125°C and priced at $35.04 in 1000s.

Low-power, 3-axis, ±3-g Accelerometer in small, low-profile package

The ADXL335 complete, low-power 3-axis accelerometer measures dynamic acceleration (motion, shock, or vibration) and static acceleration (tilt or gravity) over a ±3-g range, with 0.3% nonlinearity and 0.01%/°C temperature stability. Measurement bandwidth can be selected to suit the application, from 0.5 Hz to 1600 Hz for X- and Y- axes, and from 0.5 Hz to 550 Hz for the Z-axis. Operating on a single 1.8-V to 3.6-V supply, the ADXL335 consumes 350 μA. Available in a 16-lead LFCSP package, it is specified from –40°C to +85°C and priced at $2.38 in 1000s.

Inertial Sensors have six degrees of freedom

The ADIS16360 and ADIS16365 are complete six-degrees-of-freedom inertial sensing systems. Each contains: a 3-axis gyroscope with ±75°/s, ±150°/s, and ±300°/s range settings; a 3-axis accelerometer with ±18-g range; and a temperature sensor. They provide 14-bit digital data proportional to the angular rate about—and the acceleration along—the X-, Y-, and Z-axes—and 12-bit digital data proportional to the on-chip temperature, power-supply voltage, and voltage at an auxiliary analog input. An auxiliary 12-bit DAC provides an analog output with 2.5-V full-scale range. The devices are fully calibrated for sensitivity, bias, axial alignment, and linear acceleration at 25°C; the ADIS16365 is dynamically compensated from –40°C to +85°C. Functionally complete, they include programmable self-test, power management, and alarms. All data and commands are communicated via an SPI-compatible serial interface. Operating on a single 4.75-V to 5.25-V supply, the ADIS16360/65 consume 49 mA in normal mode, 24 mA in low-power mode and 500 μA in sleep mode. Available in 24-lead, 23-mm × 23-mm × 23-mm compact modules, they are priced at $287.00/$375.00 in 1000s.

February 2009

Six-degrees-of-freedom Inertial Sensor

The ADIS16364 complete six-degrees-of-freedom inertial sensing system includes a 3-axis gyroscope with ±75°/s, ±150°/s, and ±300°/s range settings; a 3-axis accelerometer with ±5-g range; and a temperature sensor. It provides 14-bit digital data proportional to the angular rate about—and the acceleration along—the X-, Y-, and Z-axes—and 12-bit digital data proportional to the on-chip temperature, power-supply voltage, and voltage on an auxiliary analog input. An auxiliary DAC provides an analog output with 12-bit resolution and 2.5-V full-scale range. Fully calibrated for sensitivity, bias, axial alignment, and linear acceleration, the device is dynamically compensated over the entire specified temperature range. Functionally complete, it includes programmable self-test, power management, and alarms. All data and commands are communicated via an SPI-compatible serial interface. Operating on a single 4.75-V to 5.25-V supply, the ADIS16364 consumes 49 mA in normal mode, 24 mA in low-power mode and 500 μA in sleep mode. Specified from –40°C to +105°C, it is available in a 24-lead, 23 mm × 23 mm × 23 mm compact module and is priced at $336.00 in 1000s.

January 2009

Four-degrees-of-freedom Inertial Sensor

The ADIS16300 complete inertial sensing system includes a yaw-rate gyroscope with ±75°/s, ±150°/s, and ±300°/s range settings; a 3-axis accelerometer with ±5-g range; and a temperature sensor. It provides 14-bit digital data proportional to the angular rate about the Z-axis and the acceleration along the X-, Y-, and Z-axes; 13-bit pitch and roll incline calculations; and 12-bit digital data proportional to the on-chip temperature, power-supply voltage, and voltage on an auxiliary analog input. An auxiliary DAC provides an analog output with 12-bit resolution and 2.5-V full-scale range. The devices are fully calibrated for sensitivity, bias, axial alignment, and linear acceleration; and dynamically compensated over the specified power supply range. Functionally complete, they include programmable self-test, power management, and alarms. All data and commands are communicated via an SPI-compatible serial interface. Operating on a single 4.75-V to 5.25-V supply, the ADIS16300 consumes 42 mA in normal mode, 18 mA in low-power mode and 500 μA in sleep mode. Specified from –40°C to +85°C, it is available in a 24-lead, 23-mm × 31-mm × 7.5-mm compact module and priced at $74.00 in 1000s.

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Amplifier and Comparators

November 2009

1.2-A programmable Device Power Supply includes 16-bit level-setting DACs

ad5560The AD5560 high-performance device power supply forces a pin voltage, and measures the supply voltage and supply current of a device-under-test (DUT) in automatic-test-equipment (ATE) applications. It forces voltages from –22 V to +25 V, and measures currents over one of five ranges (±5 μA, ±25 μA, ±250 μA, ±2.5 mA, ±25 mA) using internal sense resistors—or one of two ranges (±500 mA, ±1.2 A) using external sense resistors. Functionally complete, it includes a 16-bit level setting DAC, current clamps, open-drain alarms, comparators, offset- and gain-correction circuitry, a temperature sensor, and a thermal-diode array. All functions are controlled via a 3-wire serial interface. Available in a 64-lead TQFP package, the AD5560 is specified from 25°C to 90°C and is priced at $18.95 in 1000s.

Quad, low-power, low-noise, wideband Operational Amplifier has rail-to-rail output

The ADA4692-4 quad low-power operational amplifier draws only 180 µA per amplifier while operating from a single 2.7-V to 5.5-V supply or ±1.35-V to ±2.5-V dual supplies. Featuring 500-μV offset, 1-μV/°C offset drift, 0.5-pA bias current, 90-dB common-mode rejection, 3.6-MHz bandwidth, 1.1-V/μs slew rate, 13-nV/rt-Hz noise, and 0.009% distortion, it is ideally suited for instrumentation, portable audio, and medical applications. The input range extends below the negative rail, and the output can swing to within 30 mV of either rail, providing true single-supply capability. Available in a 14-lead TSSOP package, the ADA4692-4 is specified from –40°C to +125°C and priced at $0.85 in 1000s.

October 2009

Micropower Instrumentation Amplifier draws 40 μA max

ad8235The AD8235 instrumentation amplifier draws only 40 μA max when active and 6 nA in shutdown mode, making it the industry’s lowest-power device. With rail-to-rail outputs and 1.8-V to 5.5-V operation, it is ideal for battery-powered applications. Featuring an extended common-mode voltage range, 110-dB common-mode rejection, 1-pA input bias current, and 0.5-pA input offset current, it is well-suited for medical instrumentation, low-side current sensing, and many other portable signal-conditioning applications. Available in an 11-ball WLCSP package, it is specified from –40°C to +125°C and priced at $1.59 in 1000s.

September 2009

Programmable Current/Voltage Drivers for industrial applications

The AD5750 and AD5750-1 programmable current/voltage output drivers condition the output of a low-voltage single-supply digital-to-analog converter to drive a current loop or voltage-controlled actuator in programmable logic controllers (PLC) or other industrial process-control applications. The AD5750 accepts inputs with a 4.096-V full-scale range (FSR), while the AD5750-1 has a 2.5-V full-scale input range. The current output is configurable to provide five output ranges (4–20 mA, 0–20 mA, 0–24 mA, ±20 mA, ±24 mA). A separate voltage output is configurable to provide four output ranges (0–5 V, 0–10 V, ±5 V, ±10 V). The unipolar current ranges have 2% over-range capability; the voltage outputs have 20% over-range capability. Two grades are available: the B-grade specifies ±0.03/±0.02% total unadjusted error (TUE) on current/voltage outputs; the A-grade specifies ±0.15/±0.05% TUE. The open- and short-circuit protected outputs can drive up to 1-kohm resistive loads, 1-µF capacitive loads, and 0.1-H inductive loads. Operating on ±12-V to ±24-V analog supplies and a 2.7-V to 5.5-V digital supply, the AD5750/-1 dissipate 108 mW. Available in 32-lead LFCSP packages, they are specified from –40°C to +105°C. A-/B-grades are priced at $2.45/$3.29 in 1000s.

Dual low-power, unity-gain Difference Amplifier operates over wide supply range

The AD8277 difference amplifier provides precise signal conditioning in power-critical applications. Intended for unity-gain differential applications, it can also be configured for single-ended gains of −1, +1, or +2. Two grades are available: the B-grade specifies 0.02% max gain error, 1-ppm/°C max gain drift, 200-μV max offset, 2-μV/°C max offset drift, and 86-dB min common-mode rejection; the A-grade specifies 0.05% max gain error, 5-ppm/°C max gain drift, 500-μV max offset, 5-μV/°C max offset drift, and 80-dB min common-mode rejection. Both grades specify 550-kHz bandwidth and 1.1-V/μs slew rate. The input common-mode range extends well beyond the supplies, making the amplifier ideal for single-supply applications that require a high common-mode voltage range. Powered by a single 2.5-V to 36-V supply or dual ±2-V to ±18-V supplies, the AD8277 draws 400 µA max. Specified from –40°C to +85°C, it operates at up to +125°C. A-/B-grades, in 14-lead SOIC packages, are priced at $1.60/$2.35 (1000s).

Low-power Difference Amplifier provides differential gains of ½ or 2

The AD8278 difference amplifier provides precise signal conditioning in power-critical applications. Intended for differential applications with gains of ½ or 2, it can also be configured for single-ended gains from –2 to +3. Two grades are available: the B-grade specifies 0.02% max gain error, 1-ppm/°C max gain drift, 100-μV max offset, 1-μV/°C max offset drift, and 80-dB min common-mode rejection; the A-grade specifies 0.05% max gain error, 5-ppm/°C max gain drift, 250-μV max offset, 5-μV/°C max offset drift, and 74-dB min common-mode rejection. Both grades specify 1-MHz bandwidth and 1.4-V/μs slew rate. The input common-mode range extends well beyond the supplies, making the amplifier ideal for single-supply applications that require a high common-mode voltage range. Powered by a single 2.5-V to 36-V supply or dual ±2-V to ±18-V supplies, the AD8278 draws 200 µA max. Specified from –40°C to +85°C, it operates at up to +125°C. Available in 8-lead SOIC and MSOP packages, A-/B-grades are priced at $0.95/$1.45 in 1000s.

Dual low-power, precision Operational Amplifier has rail-to-rail outputs

The AD8622 dual operational amplifier specifies 125 μV max offset voltage, 1.2-μV/°C max drift, 200-pA bias current, 135-dB common-mode rejection, 137-dB open-loop gain, 600-kHz bandwidth, 0.48-V/μs slew rate, and 11-nV/rt-Hz noise. The output, which can swing to within 30 mV of either rail, can drive 40-mA loads. Operating with dual ±2-V to ±18-V supplies, the AD8622 consumes 175-μA per amplifier. Available in 8-lead MSOP and SOIC packages, it is specified from –40°C to +125°C and priced at $2.30 in 1000s.

Dual micro-power Operational Amplifier has rail-to-rail inputs and outputs

The ADA4051-2 dual high-precision, micro-power CMOS operational amplifier features 15-µV max offset, 100-nV/°C max offset drift, 200-pA max bias current, 110-dB min common-mode rejection, and 110-dB min power-supply rejection—ideal characteristics for conditioning low-level signals from pressure-, position-, and temperature sensors. The inputs can swing beyond the rails, and the outputs can swing to within 10 mV of the rails—making the amplifier well suited to portable, battery-powered instruments. Operating on a single 1.8-V to 5.5-V supply, the ADA4051-2 consumes 17 µA max per amplifier. Specified from –40°C to +125°C, it operates at up to +150°C. Available in an 8-lead MSOP package, it is priced at $1.47 in 1000s.

Quad low-power, JFET-input Operational Amplifier

The ADA4062-4 quad, low-power, JFET-input op amp consumes only 165 μA per amplifier while operating on ±4-V to ±18-V supplies. Featuring 750 μV offset, 4-μV/°C offset drift, 2-pA bias current, 90-dB common-mode rejection, 83-dB large-signal voltage gain, 90-dB power-supply rejection, 1.4-MHz bandwidth, and 3.3-V/μs slew rate, it is ideal for industrial process control, instrumentation, active filters, and other low-power data-acquisition applications. Available in a 14-lead TSSOP package, it is specified from –40°C to +125°C and priced at $1.21 in 1000s.

Quad low-power Operational Amplifier features rail-to-rail inputs and outputs

The ADA4091-4 quad low-power op amp specifies 45 μV offset, 2.5-μV/°C offset drift, 100-dB common-mode rejection, 113-dB large-signal voltage gain, 126-dB power-supply rejection, 1.22-MHz bandwidth, 0.46-V/μs slew rate, and rail-to-rail input- and output swings, making it ideal for industrial process control, portable communications equipment, power-supply control, and sensor signal conditioning. On-chip over-voltage protection prevents phase inversion and excessive input-current flow during transient- or fault conditions, reduces the number of external components needed to ensure stable operation, and simplifies system design and error analysis. It protects up to 12 V above and below the supply rails at ±15 V—and 25 V above and below the supply rails at ±5 V. Operating on a single 2.7-V to 36-V supply, or dual ±1.5-V to ±18-V supplies, the ADA4091-4 consumes 165 μA per amplifier. Available in 14-lead TSSOP and LFCSP packages, it is specified from –40°C to +125°C and priced at $3.60 in 1000s.

Micro-power Operational Amplifier features zero crossover distortion

The ADA4505-1 micro-power operational amplifier features rail-to-rail input- and output range and zero crossover distortion, ensuring true single-supply operation. It specifies 500-μV offset, 0.5-pA bias current, 105-dB common-mode rejection, 110-dB power-supply rejection, and 120-dB open-loop gain, making it ideal for remote sensors, handheld instrumentation, and other battery-powered applications. Operating on a single 1.8-V to 5-V supply or dual ±0.9-V to ±2.5-V supplies, the ADA4505-1 consumes 10.5 μA maximum. Available in a 5-lead SOT-23 package, it is specified from –40°C to +125°C and priced at $0.55 in 1000s.

High-speed, low-noise JFET-input Operational Amplifier

The ADA4627-1 high-speed, low-noise, JFET-input op amp features 19-MHz bandwidth, 56-V/μs slew rate, and 4.8-nV/rt-Hz broadband noise. Two grades are available: the B-grade specifies 200 μV max offset, 2-μV/°C max offset drift, 1-pA bias current, 106-dB common-mode rejection, 112-dB large-signal voltage gain, and 106-dB power-supply rejection; the A-grade specifies 300 μV max offset, 3-μV/°C max offset drift, 1-pA bias current, 100-dB common-mode rejection, 106-dB large-signal voltage gain, and 103-dB power-supply rejection. These specs make it useful in precision instrumentation, professional audio, and medical applications. Operating on ±4.5-V to ±18-V supplies, the ADA4627-1 consumes 7 mA. Specified from –40°C to +125°C, it is available in 8-lead SOIC and LFCSP packages. A-/B-grades are priced at $6.75/$10.75 in 1000s.

Dual low-power, low-noise, wideband Operational Amplifier has rail-to-rail output

The ADA4691-2 dual low-power operational amplifier draws only 180 µA per amplifier while operating from a single 2.7-V to 5.5-V supply or dual ±1.35-V to ±2.5-V supplies. Each amplifier can be powered down independently, reducing power consumption to 10 nA in shutdown mode. Featuring 500-μV offset, 0.8-μV/°C offset drift, 0.5-pA bias current, 70-dB common-mode rejection, 3.6-MHz bandwidth, 1.1-V/μs slew rate, 16-nV/rt-Hz noise, and 0.006% distortion, the amplifier is ideally suited for instrumentation, portable audio, and medical applications. The input range extends below the negative rail, and the output can swing to within 30 mV of either rail, providing true single-supply capability. Specified from –40°C to +125°C, and available in a 10-lead LFCSP package, it is priced at $0.57 in 1000s.

July 2009

Instrumentation Amplifier has wide supply range, rail-to-rail output

The AD8227 instrumentation amplifier requires only a single external resistor to set any gain between 5 and 1000. The input range extends below the negative supply and the output swings from rail to rail, allowing small ground-referenced signals to be amplified without a negative supply. Designed to connect with real-world sensors, the inputs are protected against voltages up to ±40 V ± Vs. Two grades are available. Specifications for B-/A-grades include 100-/200-μV max input offset, 500-/1000-μV max output offset, 0.02/0.04% gain error, 100-/90-dB CMR at G=5, 110-/105-dB CMR at G=1000, and 250-Hz bandwidth. Operating on single 2.2-V to 36-V or dual ±1.5-V to ±18-V supplies, the AD8227 draws 350 μA. Available in 8-lead MSOP and SOIC packages, it is specified from –40°C to +125°C and priced at $2.29/$1.38 in 1000s.

June 2009

Micropower Instrumentation Amplifier has no crossover distortion

The AD8236 micropower instrumentation amplifier is the industry’s lowest power device. Its 40-μA max supply current and 1.8-V to 5.5-V supply range make it ideal for medical instrumentation, low-side current sensing, and other battery-powered applications. Featuring an extended common-mode input voltage range and rail-to-rail outputs, it specifies 1-pA input bias current, 0.5-pA input offset current, and 110-dB common-mode rejection. Available in an 8-lead MSOP package, the AD8236 is specified from –40°C to +125°C and priced at $0.99 in 1000s.

Quad 235-MHz Variable-Gain Amplifier with differential outputs

The AD8264 variable-gain amplifier provides four independent channels with 24-dB voltage-controlled gain range, 20-dB/V (linear-in-dB) scale factor, and 235-MHz bandwidth. Each channel comprises a high-impedance preamplifier, a –24-dB to 0-dB variable-gain attenuator, an amplifier with fixed 18-dB gain, and a differential output buffer with fixed 6-dB gain and 80-MHz bandwidth. Output offset- and common-mode adjustments enable direct-coupling to high-speed A/D converters. With its good pulse response, it is useful for active calibration or gain trimming in data-acquisition, medical instrumentation, and radar applications. Operating on ±2.5-V to ±5-V supplies, the AD8264 dissipates 140 mW per channel at ±3.3 V. Available in a 40-lead LFCSP package, it is specified from –40°C to +105°C and priced at $11.95 in 1000s.

Low-power, unity-gain Difference Amplifier operates over wide supply range

The AD8276 difference amplifier provides precise signal conditioning in power-critical applications. Intended for unity-gain differential applications, it can also be configured for single-ended gains of −1, +1, +2, or +½. Two grades are available: the B-grade specifies 0.02% max gain error, 1-ppm/°C max gain drift, 200-μV max offset, 2-μV/°C max offset drift, and 86-dB min common-mode rejection; the A-grade specifies 0.05% max gain error, 5-ppm/°C max gain drift, 500-μV max offset, 5-μV/°C max offset drift, and 80-dB min common-mode rejection. Both grades specify 550-kHz bandwidth and 1.1-V/μs slew rate. The input common-mode range extends well beyond the supplies, making the amplifier ideal for single-supply applications that require a high common-mode voltage range. Powered by a single 2.5-V to 36-V supply or ±2-V to ±18-V dual supplies, the AD8276 draws 220 µA max. Specified from –40°C to +85°C, it operates up to +125°C. Available in 8-lead SOIC and MSOP packages, it is priced at $1.00 in 1000s.

Dual, low-power, low-noise, wideband Operational Amplifier has rail-to-rail output

The ADA4692-2 dual low-power operational amplifier draws only 165 µA per amplifier while operating from a single 2.7-V to 5.5-V supply or ±1.35-V to ±5.5-V dual supplies. Featuring 500-μV offset, 0.6-μV/°C offset drift, 0.5-pA bias current, 90-dB common-mode rejection, 4-MHz bandwidth, 2-V/μs slew rate, 15-nV/rt-Hz noise, and 0.003% distortion, it is ideally suited for instrumentation, portable audio, and medical applications. The input range extends below the negative rail, and the output can swing to within 30 mV of either rail, providing true single-supply capability. Available in an 8-lead SOIC package, the ADA4692-2 is specified from –40°C to +125°C and priced at $0.55 in 1000s.

Low-power differential ADC Drivers have pin-selectable gains of 1, 2, or 3

The ADA4950-1 single- and ADA4950-2 dual low-power differential ADC drivers—designed to interface to high-performance ADCs having up to 16-bit resolution—feature 750-MHz bandwidth, 2900-V/μs slew rate, 9-ns settling time, 108-dBc SFDR at 10 MHz, and 9.2-nV/t-Hz noise. The common-mode output voltage can be set to match the input requirement of the ADC. Differential gains of 1, 2, or 3 are selectable by externally connecting to on-chip gain-setting resistors. Operating on a single 3-V to 11-V supply or dual ±1.5-V to ±5.5-V supplies, the ADA4950-1/-2 consume 9.5 mA per channel in normal mode and 700-μA in power-down mode. Available in 16-/24-lead LFCSP packages, they are specified from –40°C to +105°C and priced at $2.99/$5.29 in 1000s.

Variable-Gain Amplifier provides 30-dB gain-control range from 1 MHz to 1.2 GHz

The ADL5331 high-performance voltage-controlled variable-gain amplifier is optimized for controlling output power in cellular base stations, CATV distribution, and RF/IF transceivers. Featuring high linearity, low noise, and a fully differential signal path, it operates from 1 MHz to 1.2 GHz, providing amplification or attenuation over a 30-dB range. The linear-in-dB gain-control input provides a 25-dB/V scale factor. The output third-order intercept (OIP3) is 47 dBm at 100 MHz, and the output noise floor is –149 dBm/Hz. The input impedance is 50 ohms; the output impedance is 20 ohms. Operating on a single 4.75-V to 5.25-V supply, the ADL5331 consumes 240 mA when active and 250 µA when disabled. Available in a 24-lead LFCSP package, it is specified from –40°C to +85°C and priced at $5.16 in 1000s.

Ultralow-distortion RF/IF Differential Amplifiers

The ADL5561/ADL5562 ultralow-distortion RF/IF differential amplifiers feature 2.9-/3.3-GHz bandwidth, 2.1-nV/t-Hz noise, 9.8-V/ns slew rate, 3-ns settling time, making them ideal for driving high-speed, high-resolution ADCs. At 70-MHz, they specify 45-/46-dBm third-order intercept (IP3), 19-/19.6-dBm compression point (P1dB),–98/–102-dBc second-harmonic distortion (HD2), –87/–90-dBc third-harmonic distortion (HD3), and –93/–96-dBc third-order intermodulation distortion (IMD). Pin strapping sets differential gains of 6 dB, 12 dB, and 15.5 dB, or single-ended gains of 5.6 dB, 11.4 dB, and 14.1 dB. Any gain from 0 dB to 15.5 dB can be set by adding an external resistor. Operating on a single 3.0-V to 3.6-V supply, the ADL5561/62 consume 40/75 mA when enabled and 3/3.5 mA when disabled. Available in 16-lead LFCSP packages, they are specified from –40°C to +85°C and priced at $3.53 in 1000s.

May 2009

Very fast, single-supply, rail-to-rail Voltage Comparator has LVDS outputs

The AD8465 high-speed, low-noise, automotive grade comparator features a 1.6 ns propagation delay, with 1 ps rms random jitter and less than 50 ps typical overdrive and slew rate dispersion. The input range extends from VEE − 0.5 V to VCCI + 0.2 V. This flexibility allows a −0.5 V to +2.7 V input signal range when operating on a single 2.5-V supply up to a −0.5 V to +5.7 V input signal range when operating on a single 5.5-V supply. Split input/output supplies, with no sequencing restrictions, support a wide input signal range with greatly reduced power consumption. Other features include LVDS-compatible output drivers, TTL/CMOS latch inputs, and adjustable hysteresis and/or shutdown inputs. The LVDS-compatible output stage is designed to drive any standard LVDS input. Available in a 12-lead LFCSP package, it is specified from –40°C to +125ºC and priced at $2.98 in 1000s.

March 2009

Instrumentation Amplifier has wide supply range, rail-to-rail output

The AD8226 instrumentation amplifier requires only a single external resistor to set any gain between 1 and 1000. The input range extends below the negative supply and the output swings from rail to rail, allowing small ground-referenced signals to be amplified without a negative supply. Designed to connect with real-world sensors, the inputs are protected against voltages up to ±40V±Vs. Specifications include 200-μV input offset, 1000-μV output offset, 0.04% gain error, 80-dB CMR at G=1, 105-dB CMR at G=1000, and 1.5-MHz bandwidth. Operating on a single 2.2-V to 36-V supply or dual ±1.1-V to ±18-V supplies, the AD8226 draws 350 μA. Available in 8-lead MSOP and SOIC packages, they are specified from –40°C to +125°C and priced from $1.40 in 1000s.

Precision programmable-gain Difference Amplifier

The AD8271 low-distortion, programmable-gain difference amplifier comprises a precision op-amp and seven laser-trimmed gain-setting resistors, enabling user-selectable differential gains of 0.5, 1, or 2. It can also be configured in over 40 single-ended configurations, with gains ranging from −2 to +3. Two grades are available: the B-grade specifies 0.02% max gain error, 2-ppm/°C max gain drift, 600-μV max offset, and 80-dB min common-mode rejection; the A-grade specifies 0.05% max gain error, 10-ppm/°C max gain drift, 1000-μV max offset, and 74-dB min common-mode rejection. Both grades specify –110-dB harmonic distortion, 15-MHz bandwidth, and 30-V/μs slew rate. This combination of speed and precision makes the device ideal for driving ADCs, building instrumentation amplifiers, level shifting, and automatic test equipment. Operating on a single 5-V to 36-V supply or dual ±2.5-V to ±18-V supplies, the AD8271 draws 2.3 mA. Available in a 10-lead MSOP package, it is specified from –40°C to +85°C and priced from $1.25 in 1000s.

1-MHz Operational Amplifier has wide supply range, rail-to-rail inputs and outputs

The ADA4665-2 dual CMOS operational amplifier features rail-to-rail inputs and outputs. It is optimized for low-power applications, as well as process control, instrumentation, and signal-conditioning. Its specifications include 1-pA max input bias current, 3-μV/°C offset drift, 1.2-MHz bandwidth, and 1-V/μs slew rate. Operating on a single 5-V to 16-V supply, or dual ±2.5-V to ±8-V supplies, the ADA4665-2 consumes 290 μA per amplifier. Available in 8-lead SOIC and MSOP packages, it is specified from –40°C to +125°C and priced at $0.70 in 1000s.

January 2009

Precision Instrumentation Amplifier includes auxiliary amplifiers and resistors

The AD8295 highly integrated instrumentation amplifier is designed to save space in precision analog front-ends. Comprising a high-performance instrumentation amp, two general-purpose op amps, and two matched resistors, it makes PCB routing easy and efficient. The instrumentation amplifier features 60-μV input offset, 350-μV output offset, 90-dB CMR, and 8-nV/rt-Hz noise. A single external resistor sets the gain between 1 and 1000. The op amps feature 20-μV offset and 100-dB CMR. The 20-kohm resistors are matched to 0.03% with a 1-ppm/°C ratio temperature coefficient. Operating on ±2.3-V to ±18-V supplies, the AD8295 consumes 2 mA. Specified from –40°C to +85°C, it is available in a 16-lead LFCSP package and priced from $2.89 in 1000s.

36-V precision single- and dual Operational Amplifiers feature 1.8-nV/rt-Hz noise

The single ADA4004-1 and dual ADA4004-2 precision operational amplifiers feature 40-μV offset voltage, 40-nA input bias current, 400-V/mV open-loop gain, 12-MHz bandwidth, and 1.8-nV/rt-Hz voltage noise. Designed on ADI’s advanced iPolar™ fabrication process, they are ideal for use in filters, precision instrumentation, and industrial-control applications. Specified from –40°C to +125°C, they operate on ±5-V to ±15-V supplies, consuming 2 mA max per amplifier. The ADA4004-1, available in 8-lead SOIC and 5-lead SOT-23 packages, is priced at $1.75 in 1000s. The ADA4004-2, available in 8-lead SOIC and MSOP packages, is priced at $2.65 in 1000s.

Low-noise, 1-GHz single- and dual Operational Amplifiers

The single ADA4817-1 and dual ADA4817-2 FastFET™ ultrahigh-speed operational amplifiers feature 1-GHz bandwidth, 870-V/μs slew rate, 9-ns settling time to 0.1%, 1.5-pF common mode input capacitance, 4-nV/rt-Hz voltage noise,–90-dBc distortion at 10 MHz, 2-mV offset voltage max, and unity-gain stability, making them ideal for data acquisition front ends, wideband photodiode preamps, and active filters. Designed on ADI’s proprietary XFCB fabrication process, they can supply 70-mA output current. Specified from –40°C to +105°C, they operate on a single 5-V to 10-V supply or dual ±2.5-V to ±5-V supplies, consuming 19 mA per amplifier in normal mode and 1.5 mA in power-down mode. The ADA4817-1, available in an 8-lead LFCSP package, is priced at $2.95 in 1000s. The ADA4817-2, available in a 16-lead LFCSP package, is priced at $4.98 in 1000s.

Triple high-speed, single-supply Operational Amplifier provides rail-to-rail outputs

The ADA4855-3 rail-to-rail op amp features 410-MHz bandwidth, 870-V/μs slew rate, 5.3-ns settling time to 0.1%, 0.01% differential gain error, and 0.01° differential phase error, making it ideal for professional and consumer video, imaging, and active filters. The input common-mode range extends below ground, and the outputs can swing to within 100 mV of either rail, providing true single-supply operation. Operating on a single 3-V to 5.5-V supply, the ADA4855-3 consumes 7.8 mA per amplifier in normal mode and 1.1 mA in power-down mode. Specified from –40°C to +105°C, it is available in a 16-lead LFCSP package and priced at $1.39 in 1000s.

Triple high-speed, single-supply Operational Amplifier includes charge pump

The ADA4858-3 op amp features 600-MHz bandwidth, 600-V/μs slew rate, 18-ns settling time to 0.1%, 0.01% differential gain error, and 0.02° differential phase error, making it ideal for professional and consumer video, imaging, and active filters. The on-chip charge pump eliminates the need for a negative supply, while allowing a –1.8-V to +3.8-V input common-mode range and a –1.7-V to +3.7-V output swing. Operating on a single 3-V to 5.5-V supply, the ADA4858-3 consumes 42 mA total, including the charge pump, and 4.25 mA in power-down mode. Specified from –40°C to +105°C, it is available in a 16-lead LFCSP package and priced at $1.69 in 1000s.

Ultralow-distortion, current-feedback, differential ADC Drivers

The single ADA4927-1 and dual ADA4927-2 high-speed, ultralow-distortion, current-feedback, differential ADC drivers are designed to interface directly with high-performance ADCs having up to 16-bit resolution from dc to 100 MHz. They feature 2.3-GHz bandwidth, 5000-V/μs slew rate, 10-ns settling time to 0.1%, 103-dBc SFDR at 10 MHz, and 1.4-nV/rt-Hz noise. The drivers are stable for fractional differential gains, unity gain, and gains greater than 1; gain is set by two pairs of external resistors. The common-mode output voltage can be set to match the input of the ADC. Operating on a single 4.5-V to 11-V supply or dual ±2.25-V to ±5.5-V supplies, the ADA4927-1/-2 consume 20 mA per amplifier in normal mode and 600-μA in power-down mode. Available in 16-/24-lead LFCSP packages, they are specified from –40°C to +105°C and priced at $3.79/$6.29 in 1000s.

December 2008

Low-cost, single-supply Instrumentation Amplifier

The AD8223 single-supply instrumentation amplifier provides accurate gain in a wide range of battery-powered applications—such as medical instrumentation, thermocouple amplifiers, and industrial process control—that require low noise, wide dynamic range, and good common-mode rejection. Its default gain is 5, but a single external resistor can be used to set gains up to 1000, with 0.1% gain error and 50-ppm nonlinearity. The AD8223 is available in two grades: the A-grade specifies 250-μV input offset, 1500-μV output offset, 80-dB CMR at G=5 (up to 200 Hz), and 90-dB CMR at G=1000; the B-grade specifies 100-μV input offset, 1000-μV output offset, 86-dB CMR at G=5, and 96-dB CMR at G=1000. Operating on a single 3-V to 24-V supply, or dual ±2-V to ±12-V supplies, the AD8223 consumes 350 μA per amplifier. Available in 8-lead SOIC and MSOP packages, it is specified from –40°C to +85°C and priced from $1.05 in 1000s.

16-bit ADC Driver provides level translation, gain of 0.2

The AD8275 difference amplifier includes internal gain-setting resistors that translate ±10-V signals to 0-to-4-V levels for interfacing high-level signals with a single-supply ADC. The B-grade features 0.024% max gain error, 1-ppm/°C max gain drift, 500-μV max offset, 86-dB min common-mode rejection, –106-dB harmonic distortion, 15-MHz bandwidth, and 25-V/μs slew rate, making it ideal for building instrumentation amplifiers, level translators, and automatic test equipment. Operating on a single 3.3-V to 15-V supply, the AD8275 consumes 1.9 mA. Available in an 8-lead MSOP package, it is specified from –40°C to +85°C and priced from $1.60 in 1000s.

Operational Amplifier has ultralow noise and distortion

The AD8597 operational amplifier achieves ultralow distortion (–120 dB THD+N) and ultralow noise (1.1 nV/rt-Hz), making it an ideal for use as an audio preamp, ADC driver, or DAC buffer. Unity-gain stable, its specifications include 10-μV offset, 0.8-μV/°C offset drift, 135-dB common-mode rejection, 116-dB large-signal voltage gain, 140-dB power-supply rejection, 10-MHz bandwidth, and 16-V/μs slew rate. Operating on ±4.5-V to ±18-V supplies, the AD8597 consumes 4.8 mA. Available in 8-lead SOIC and LFCSP packages, it is specified from –40°C to +125°C and priced at $2.25 in 1000s.

Dual, low-power, JFET-input Operational Amplifier

The ADA4062-2 dual, low-power, JFET-input op amp features 500-μV offset, 4-μV/°C offset drift, 2-pA bias current, 90-dB common-mode rejection, 83-dB large-signal voltage gain, 90-dB power-supply rejection, 1.4-MHz bandwidth, and 3.3-V/μs slew rate, making it ideal for industrial process control, instrumentation, active filters, and other low-power data-acquisition applications. Operating on ±4-V to ±18-V supplies, the ADA4062-2 consumes 165 μA per amplifier. Available in 8-lead SOIC and MSOP packages, it is specified from –40°C to +125°C and priced from $0.75 in 1000s.

Dual, low-power Operational Amplifier features rail-to-rail inputs and outputs

The ADA4091-2 dual, low-power op amp specifies 45-μV offset, 2.5-μV/°C offset drift, 95-dB common-mode rejection, 116-dB large-signal voltage gain, 100-dB power-supply rejection, 1.2-MHz bandwidth, 0.5-V/μs slew rate, and rail-to-rail input and output swings, making it ideal for industrial process control, portable telecommunications equipment, power supply control, and sensor signal conditioning. On-chip over-voltage protection prevents phase-inversion and excessive input current flow during transient or fault conditions, reduces the number of external components needed to ensure stable operation, and simplifies system design and error analysis. It protects up to 12 V above and below the supply rails at ±15 V and 25 V above and below the supply rails at ±5 V. Operating on a single 3-V to 36-V supply, or dual ±1.5-V to ±18-V supplies, the ADA4091-2 consumes 180 μA per amplifier. Available in an 8-lead SOIC package, it is specified from –40°C to +125°C and priced at $2.22 in 1000s.

Low-power Differential ADC Drivers

The single ADA4932-1 and dual ADA4932-2 low-power differential ADC drivers are designed to interface directly with high-performance ADCs having up to 16-bit resolution. They feature 560-MHz bandwidth, 2800-V/μs slew rate, 9-ns settling time, 100-dBc SFDR at 10 MHz, and 3.6-nV/t-Hz noise. The drivers are stable for fractional differential gains, unity gain, and gains greater than 1; gain is set by two pairs of external resistors. The common-mode output voltage can be set to match the input of the ADC. Operating on a single 3-V to 11-V supply or dual ±1.5-V to ±5.5-V supplies, the ADA4932-1/-2 consume 8.8 mA per channel in normal mode and 700-μA in power-down mode. Available in 16-/24-lead LFCSP packages, they are specified from –40°C to +105°C and priced at $2.95/$5.29 in 1000s.

200-MHz Pin Electronics IC includes driver, comparator, active load, and PMU

The ADATE304 pin electronics IC performs the automatic-test-equipment (ATE) functions of driver, comparator, and active load (DCL)—at speeds of up to 200 MHz. It also provides a per-pin parametric measurement unit (PMU) and dc level setting. The PMU can force or measure voltage or current—and measure voltage or current—on a per-pin basis. Programmable force/measure current ranges include ±2 μA, ±20 μA, ±200 μA, ±2 mA, and ±32 mA. The proprietary driver features three active-mode output levels—logic high, logic low, and term—and a high-impedance inhibit mode. Its –2-V to +6-V voltage range accommodates a wide variety of test devices. A high-voltage buffer can source voltages up to 13.5 V. High-speed window- and differential comparators facilitate functional testing. On-chip 14-bit DACs set the dc levels for the driver, comparator, and active load (DCL); a 16-bit DAC provides precision levels for the PMU. A dual device, it can be used to support two single-ended drive/receive channels or a single differential channel. Operating on –5-V, +3.3-V, +10.75-V, and +16.75-V supplies, the ADATE304 consumes 800 mW per channel. Available in an 84-ball flip-chip BGA package, it is specified from –40°C to +85°C and priced at $40.00 in 1000s.

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Analog Microcontrollers

August 2009

Low-power Precision Analog Microcontrollers include two 24-bit ADCs

The ADuC7060 and ADuC7061 low-power, 24-bit, 8-ksps single-chip data-acquisition systems integrate two multichannel sigma-delta A/D converters, a 16-/32-bit RISC microcontroller (MCU), flash memory, and a host of peripherals. The primary ADC, which is preceded by a programmable-gain amplifier (PGA) and 5-channel mux, features ±15-ppm integral nonlinearity (INL) and a selectable ±2.34-mV to ±1.2-V full-scale input range. The auxiliary ADC, which is preceded by a buffer and 8-channel multiplexer, features ±20-ppm INL with a 1.2-V input range. The analog peripherals include a 14-bit buffered voltage-output DAC, programmable sensor-excitation currents, precision 1.2-V, 10-ppm/°C reference, and a temperature sensor. An ARM7TDMI MCU, operating from an on-chip oscillator and PLL, offers up to 10-MIPS peak performance. Program and data are stored in 4 kB of SRAM and 32 kB of nonvolatile memory. The digital peripherals include four timers, up to six 16-bit PWMs, a vector-interrupt controller, up to 14 GPIO pins, a UART, SPI port, and I2C interface. JTAG-based debug and the QuickStart development system facilitate system design and speed time to market. Specified from –40°C to +125°C, the devices operate on a single 2.5-V supply, consuming 2.8 mA with a 1-MHz core clock and both ADCs active and 55 µA in power-down mode. The ADuC7060, available in a 48-pin package, is priced at $4.70 in 1000s; the ADuC7061, available in a 32-lead LFCSP package, is priced from $3.40 in 1000s.

December 2008

Intelligent Battery Sensor for 12-V automotive applications

The ADuC7036 precision battery sensor precisely monitors a battery’s voltage, current, and temperature—in order to characterize its state-of-health (SOH) and state-of-charge (SOC) in automotive applications. The device integrates two simultaneous-sampling 16-bit, 8-kHz sigma-delta ADCs, a temperature sensor, a 5-ppm/°C voltage reference, 96 Kbytes of flash memory, 6 Kbytes or RAM, and all necessary signal-conditioning functions. On-chip regulation and attenuation facilitate operation directly from 3.5-V to 18-V car batteries. The on-chip ARM7TDMI 16-/32-bit, 20-MHz RISC microcontroller processes the acquired data; the LIN transceiver communicates the battery’s SOH and SOC data to the car’s electronic control unit (ECU). The ADuC7036 consumes 10 mA in normal mode and 300 μA in power-down mode. Available in a 48-lead LFCSP package, it is specified from –40°C to +115°C and priced at $6.72 in 1000s.

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Analog-to-Digital Converters (ADCs)

November 2009

16-bit, 10-Msps Successive-Approximation ADC has differential inputs, 1.5-LSB INL

ad7626The AD7626 PulSAR® successive-approximation A/D converter achieves 16-bit resolution, ±0.5-LSB max differential nonlinearity (DNL), and ±1.5-LSB max integral nonlinearity (INL) at 10 Msps, making it the fastest, most accurate 16-bit ADC available. With no pipeline delay, it is ideal for telecommunications receivers, digital imaging, and high-speed data acquisition. With a 4.096-V internal- or external voltage reference, it features 91-dB SINAD, –105.5-dB THD, and ±VREF differential input range. Data is available on a self-clocked LVDS interface or an echoed-clock serial interface. Operating on 2.5-V and 5-V supplies, the AD7626 dissipates 150 mW with the internal reference, 136 mW with an external reference, 88 mW when static, and 8 μW in power-down mode. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and is priced at $34.95 in 1000s. 

16-bit, 2.5-Msps Successive-Approximation ADC

ad7985The AD7985 low-power PulSAR® successive-approximation ADC achieves 16-bit resolution with no missing codes at a 2.5-Msps sampling rate. Accepting fully differential inputs within a ±VREF range, it specifies 90.5-dB signal-to-noise-plus-distortion (SINAD),–100-dB total harmonic distortion (THD), ±0.5-LSB differential nonlinearity, and ±0.7-LSB integral nonlinearity. Its successive-approximation architecture ensures that there will be no pipeline delays; and daisy-chaining allows several ADCs to share a single serial bus with busy indication. It achieves its highest throughput rate in turbo mode; its power consumption scales with throughput rate in normal mode. Operating on 2.5-V and 5-V supplies, the AD7985 dissipates 28 mW at 2.5 Msps with the internal reference, 15.5 mW with an external reference, and 10 µW in standby mode. Available in a 20-lead LFCSP package, it is specified from –40°C to +85°C and priced at $26.40 in 1000s.

September 2009

4-channel, 24-bit, 4.8-kHz, ultralow-noise Sigma-Delta ADC with PGA

The AD7193 complete, low-noise, high-precision analog front-end—for weigh scales, strain gauges, and pressure sensors—includes a multiplexer, a programmable-gain amplifier, a 24-bit sigma-delta ADC, and a temperature sensor. It can be configured for four differential or eight pseudo-differential inputs; a channel sequencer allows sequential conversion of each enabled input. The PGA gain can be set between 1 and 128; the total signal chain has only 1-ppm/°C gain drift. The on-chip 4.92-MHz clock provides output data rates from 4.7 Hz to 4.8 kHz, with 22 noise-free bits at G = 1. The highly flexible digital filter allows the user to optimize data rate, settling time, and 50/60-Hz rejection. It also features a zero-latency mode and an option to chop the input signal. Operating on a 3-V to 5.25-V analog supply and a 2.7-V to 5.25-V digital supply, the AD7193 consumes 1 mA at G=1, 3.2 mA at G=8, and 4.3 mA at G=128. Available in a 28-lead TSSOP package, it is specified from –40°C to +105°C and priced at $5.40 in 1000s.

Dual 10-/12-/14-bit pipelined ADCs sample at up to 80 Msps

The AD9204/AD9231/AD9251 dual pipelined A/D converters provide 10-/12-/14-bit resolution with no missing codes at sampling rates to 80 Msps, making them ideal for ultrasound equipment, broadband communications, and battery-powered instruments. The fully differential analog inputs accept signals with a 1-V p-p to 2-V p-p full-scale range, at frequencies up to 700 MHz. Output data is available from two CMOS-compatible parallel ports. Functionally complete, the devices include a programmable clock divider, clock duty-cycle stabilizer, voltage reference, SPI-compatible port, and programmable test pattern generation. They provide 61-/70-/74-dBFs signal-to-noise ratio (SNR), 75-/85-/93-dBc spurious-free dynamic range (SFDR), and ±0.5-LSB differential nonlinearity (DNL). Operating on a 1.7-V to 1.9-V analog supply and a 1.7-V to 3.6-V digital supply, the AD9204/31/51 dissipate 145 mW at 80 Msps, 37 mW in standby mode, and 2.2 mW in power-down mode. Available in 64-lead LFCSP packages, they are specified from –40°C to +85°C and priced from $5.00/$10.00/$18.50 in 1000s.

Dual continuous-time, Sigma-Delta Modulator samples at 640 Msps

The AD9267 dual continuous-time sigma-delta modulator achieves 88-dB dynamic range over a 10-MHz input bandwidth. Its resistive input eases the requirements of the driver amplifier; its 5th-order loop filter reduces the need for an external anti-aliasing filter; and its integrated PLL clock multiplier and voltage reference make it easy to use. The data is provided as 4-bit LVDS at 640 Msps. A data output clock is provided for proper synchronization. Additional digital filtering is required to remove out-of-band noise and reduce the sampling rate. Operating on a single 1.7-V to 1.9-V supply, the AD9267 dissipates 503 mW at 640 Msps, 110 mW in power-down mode, 9 mW in standby mode, and 3 mW in sleep mode. Available in a 64-lead LFCSP package, it is specified from –40°C to +85°C and priced at $40.80 in 1000s.

8-channel Analog Front-Ends include LNA, VGA, AAF, ADC, and I/Q demodulator

The AD9276/AD9277 analog front-ends for medical imaging, ultrasound, and radar applications comprise eight time-gain control (TGC) channels—each consisting of a low-noise preamplifier (LNA), a variable-gain amplifier (VGA), an anti-aliasing filter (AAF), and a 12-/14-bit, 80-/50-Msps analog-to-digital converter (ADC). Each fully differential channel provides 42-dB gain range, 51.3-dB maximum gain, 70-/73-dB signal-to-noise ratio (SNR), 100-MHz bandwidth, and 0.75-nV/rt-Hz input-referred noise specifications. The devices also include a quadrature (I&Q) demodulator with programmable phase rotation for use in CW Doppler mode. Operating on 1.7-V to 1.9-V and 2.7-V to 3.6-V supplies, the AD9276/77 dissipate 1660 mW in TGC mode, 750 mW in CW mode, and 5 mW in power-down mode. Available in 100-lead TQFP packages, they are specified from –40°C to +85°C and priced at $62.00/$68.00 in 1000s.

August 2009

128-channel, 24-bit Current-to-Digital Converter

The 128-channel ADAS1128 current-to-digital converter achieves 24-bit resolution at a 20-ksps sampling rate. It comprises 128 low-noise current integrators and simultaneous-sampling track-and-hold amplifiers multiplexed into two high-resolution ADCs. The current inputs directly interface with photodiodes or other low-current sensors; a resistive divider can be used with high-current- or voltage inputs. Data is available via a self-clocked LVDS serial interface that can be connected without glue to a field-programmable gate array (FPGA). Available in a compact 10-mm × 10-mm mini-BGA (ball grid array) package, the ADAS1128 is priced at $192.00 in 250-unit quantities.

June 2009

24-bit ultralow-noise Sigma-Delta ADC has pin-programmable gain and data rate

The AD7191 complete, low-noise, high-precision analog front-end for weigh scales, strain gauges, and pressure sensors includes a multiplexer, a programmable-gain amplifier, a 24-bit sigma-delta ADC, and a temperature sensor. Pin programming chooses among: output data rates of 10 Hz, 50 Hz, 60 Hz, or 120 Hz; PGA gains of 1, 8, 64, or 128; the channels to be converted (AIN1/AIN2, AIN3/AIN4, or temperature sensor)—and selects the power down/reset mode; and the clock source. Simultaneous 50 Hz and 60 Hz noise-rejection nulls occur at 10 Hz and 50 Hz data rates. Specifications include 21.5-bit noise-free resolution (G = 1), 5-nV/°C offset drift, 1-ppm/°C gain drift, and 15-nV rms noise. Operating on a 3-V to 5.25-V analog supply and a 2.7-V or 5.25-V digital supply, the AD7191 consumes 1.1 mA at G=1, 4.0 mA at G=8, and 5.5 mA at G=128. Available in a 24-lead TSSOP package, it is specified from –40°C to +105°C and priced at $3.80 in 1000s.

24-bit, 4.8-khz, ultralow-noise Sigma-Delta ADC with PGA

The AD7192 complete, low-noise, high-precision analog front-end for weigh scales, strain gauges, and pressure sensors includes a multiplexer, a programmable-gain amplifier, a 24-bit sigma-delta ADC, and a temperature sensor. It can be configured for two differential or four pseudo-differential inputs; a channel sequencer allows sequential conversion of each enabled input. The PGA gain can be set between 1 and 128, with 0.005% gain error and 1-ppm/°C gain drift. The on-chip 4.92-MHz clock provides output data rates between 4.7 Hz to 4.8 kHz, with 22 noise-free bits at G = 1. The digital filter has two options that control data rate, settling time, and 50/60-Hz rejection. It also features a zero-latency mode. Operating on a 3-V to 5.25-V analog supply and a 2.7-V to 5.25-V digital supply, the AD7192 consumes 1.1 mA at G=1, 4.0 mA at G=8, and 5.5 mA at G=128. Available in a 24-lead TSSOP package, it is specified from –40°C to +105°C and priced at $4.90 in 1000s.

Dual 14-bit, 4.2-Msps, simultaneously-sampling Successive-Approximation ADC

The AD7357 dual 14-bit, 4.2-Msps successive-approximation ADC accepts differential inputs within a range of ±VREF/2. Twin signal paths, each comprising a wideband track-and-hold and high-speed ADC, allow simultaneous conversion of two input signals, with data available via a high-speed SPI-compatible interface. An on-chip 2.048-V reference can be overdriven if an external reference is preferred. Specifications include ±2-LSB integral nonlinearity, ±0.5-LSB differential nonlinearity, 110-MHz input bandwidth, and 77-dB signal-to-noise-plus-distortion (SINAD). Operating on a single 2.5-V supply, the AD7357 dissipates 36 mW in normal mode, 16 mW in static mode, 9.5 mW in partial power-down mode, and 16 µW in full power-down mode. Housed in 16-lead TSSOP packages, two grades are available: the B-grade, specified from –40°C to +85°C, is priced at $10.81 in 1000s; the Y-grade, specified from –40°C to +125°C, is priced at $12.43 in 1000s.

24-/20-bit ultralow-power pin-programmable Sigma-Delta ADCs

The AD7780/AD7781 low-power analog front-ends for weigh scales, strain gauges, and pressure sensors include a programmable-gain amplifier, 24-/20-bit sigma-delta ADC, and an on-chip oscillator. The amplifier gain can be set to 1 or 128, yielding a fully differential input range of ±5 V or ±39 mV. The output data rate can be set to 16.7 Hz for faster settling time or 10 Hz for lower noise. Both modes reject 50-/60-Hz noise. The ADC provides 18.7-bit p-p resolution and 2.7-μV rms noise with a gain of 1 and a 16.7-Hz update rate; and 17.6-bit p-p resolution and 44-nV rms noise with a gain of 128 and a 10-Hz update rate. Operating on a single 2.7-V to 5.25-V supply, the AD7780/81 consume 115 µA at G = 1, 330 µA at G = 128, and 10 µA in power-down mode. Available in 14-lead SOIC and 16-lead TSSOP packages, they are specified from –40°C to +105°C and priced from $2.70/$1.95 in 1000s.

18-bit, 2-Msps Successive-Approximation ADC

The AD7986 low-power PulSAR® successive-approximation ADC achieves 18-bit resolution with no missing codes at a 2-Msps sampling rate. Accepting fully differential inputs within a ±VREF range, it specifies 95.5-dB signal-to-noise-plus-distortion (SINAD), –113-dB total harmonic distortion (THD), ±0.6-LSB differential nonlinearity, and ±1-LSB integral nonlinearity. Its successive-approximation architecture ensures that there will be no pipeline delays; and daisy chaining allows several ADCs to share a single serial bus with busy indication. It achieves its highest throughput rate in turbo mode; its power consumption scales with throughput rate in normal mode. Operating on 2.5-V and 5-V supplies, the AD7986 dissipates 29 mW at 2 Msps with the internal reference, 15 mW with an external reference, and 22 µW in standby mode. Available in a 20-lead LFCSP package, it is specified from –40°C to +85°C and priced at $29.95 in 1000s.

Dual 14-/16-bit, 125-Msps Pipelined ADCs operate on 1.8-V supply

The AD9258/AD9268 dual pipelined A/D converters provide 14-/16-bit resolution with no missing codes at sampling rates to 125 Msps, making them ideal for broadband communications, software-defined radios, and ultrasound equipment. The fully differential analog inputs accept signals with a 1-V p-p to 2-V p-p full-scale range, at frequencies up to 650 MHz. Output data is available from two parallel ports, which can be set for 1.8-V CMOS or LVDS compatibility. Functionally complete, each device includes a voltage reference, a clock duty-cycle stabilizer, an SPI-compatible port, and optional dither generation. With a 70-MHz analog input signal, their specifications include: 77.6-/78.2-dBFs signal-to-noise ratio (SNR), 88-dBc spurious-free dynamic range (SFDR), ±0.8-/±3-LSB integral nonlinearity (INL), and ±0.25-/±0.7-LSB differential nonlinearity (DNL). Operating with a single 1.8-V supply, the AD9258/68 dissipate 750 mW at 125 Msps, 45 mW in standby mode, and 2.5 mW in power-down mode. Specified from –40°C to +85°C, they are available in 64-lead LFCSP packages and priced at $93.50/$136.00 in 1000s.

Quad 12-bit, 170-/210-Msps Pipelined ADC operates on 1.8-V supply

The AD9639 pipelined 4-channel A/D converter provides 12-bit resolution with no missing codes at sampling rates to 210 Msps, making it ideal for broadband communications, radar, and test equipment. The fully differential analog inputs accept signals with a 1.25-V full-scale range, at frequencies up to 780 MHz. The output data is serialized and presented in packets consisting of channel-specific information, coded samples, and error-correction coefficients. Functionally complete, the device includes four input buffers, sample-and-hold amplifiers, and ADCs; a voltage reference; and a temperature sensor. With an 85-MHz analog input signal, its specifications include: 65-dBFs signal-to-noise ratio (SNR), 77-dBc spurious-free dynamic range (SFDR), ±0.45-LSB integral nonlinearity (INL), and ±0.28-LSB differential nonlinearity (DNL). Operating with a single 1.8-V supply, the AD9639 dissipates 1.1 W per channel at 170 Msps, 152 mW in standby mode, and 3 mW in power-down mode. Specified from –40°C to +85°C, it is available in a 72-lead LFCSP package and priced from $101.15 in 1000s.

May 2009

Low-voltage Touch-Screen Controller

The AD7889 touch-screen controller features a 12-bit, 105-Msps successive-approximation ADC and low on-resistance switches for driving low-voltage, 4-wire resistive touch screens. It can run in slave mode or in standalone mode—which uses an automatic conversion sequencer and timer. User-programmable median- and averaging filters reduce the effects of LCD noise. Acquisition time and conversion delay are also user programmable. An on-chip temperature sensor measures local temperature to within ±2°C. A programmable pin can operate as an ADC input, battery monitor, or digital I/O. All control signals and data are all communicated via an SPI- (AD7889) or I2C- (AD7889-1) compatible serial interface. Operating on a single 1.6-V to 3.6-V supply, the controller consumes 480 μA when converting and 0.5 μA in shutdown mode. Available in a 12-ball, backside-coated WLCSP package, it is specified from –40°C to +85°C and priced at $1.66 in 1000s.

Single-phase Energy-Measurement ICs integrate MCU, RTC, and LCD driver

The ADE5566 and ADE5569 single-phase energy-measurement ICs integrate all the circuitry required to make an electronic energy meter with LCD display, including an analog front-end with two fully differential programmable-gain voltage inputs, fixed-function DSP, enhanced 8052-compatible MCU, real-time clock, LCD driver, and peripherals. Accurate to 0.1% over a 1000-to-1 dynamic range, they surpass the requirements of the IEC 62053-2x standards. They measure active and apparent energy, as well as rms voltage and current. The ADE5569 also measures reactive energy, with less than 0.5% error over a 1000-to-1 dynamic range. The data, provided in energy-measurement units, is ready for billing and other uses. Operating with a single 3.3-V supply, the ADE5566/69 consume 4.4 mA in normal mode, 3.3 mA in PSM1 mode, 38 μA in PSM2 mode, and 1.7 μA in sleep mode. Available in 64-lead LQFP packages, they are specified from –40°C to +85°C and priced at $3.17/$3.41 in 1000s.

March 2009

Programmable Controller for single-electrode capacitance sensors

The AD7147A CapTouch™ capacitance-to-digital converter provides 13 input channels that interface with single-electrode capacitive sensors—such as button arrays, scroll bars, or scroll wheels. A 16-bit, 250-kHz sigma-delta converter measures the capacitance, senses changes, and indicates sensor activation. On-chip circuitry automatically calibrates the converter to compensate for changes in temperature and humidity, thus eliminating false or non-registering touches. Data- and control signals are transferred via SPI- or I2C-compatible interfaces. Operating on a single 2.6-V to 3.6-V supply, the AD7147A consumes 800 μA in full-power mode, 15.5 μA in low-power mode, and 2.3 μA in shutdown mode. Available in a 25 ball WLCSP package, it is specified from –40°C to +85°C and priced at $1.30 in 1000s.

16-bit, 6-Msps Successive-Approximation ADC has differential inputs, 1-LSB INL

The AD7625 PulSAR® successive-approximation A/D converter achieves 16-bit resolution, ±0.5-LSB max differential nonlinearity (DNL), and ±1-LSB max integral nonlinearity (INL) at 6 Msps, making it the fastest, most accurate 16-bit ADC available. With no pipeline delay, it is ideal for telecommunications receivers, digital imaging, and high-speed data acquisition. With a 4.096-V internal- or external voltage reference, it provides 92-dB SINAD, –105.5-dB THD, and ±VREF differential input range. Data is available on a self-clocked LVDS interface or an echoed-clock serial interface. Operating on 2.5-V and 5-V supplies, the AD7625 dissipates 145 mW with the internal reference and 135 mW with an external reference. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and is priced at $29.95 in 1000s.

Single-phase Energy-Measurement IC integrates MCU, RTC, and LCD driver

The ADE7518 single-phase energy-measurement IC, which integrates all the circuitry required to make an electronic energy meter with LCD display, includes: an analog front-end with two fully differential programmable-gain voltage inputs, fixed-function DSP, enhanced 8052-compatible MCU, real-time clock, LCD driver, and peripherals. It measures active, reactive, and apparent energy, as well as rms voltage and current. Accurate to 0.1% over a 1000-to-1 dynamic range (active energy), it surpasses the requirements of the IEC 62053-2x standards. Output data, provided in energy-measurement units, is ready for energy billing and other uses. Power line supervisory features—such as SAG, peak, and zero crossing—simplify energy-meter design. Operating with a single 3.3-V supply, the ADE7518 draws 4 mA in normal mode, 3.2 mA in PSM1 mode, 38 μA in PSM2 mode, and 1.5 μA in sleep mode. Available in a 64-lead LQFP package, it is specified from –40°C to +85°C and priced from $2.69 in 1000s.

February 2009

Single-phase Energy-Measurement ICs integrate MCU, RTC, and LCD driver

The ADE7116 and ADE7156 single-phase energy-measurement ICs integrate all the circuitry required to make an electronic energy meter with LCD display, including an analog front-end with three fully differential programmable-gain amplifiers, fixed-function DSP, enhanced 8052-compatible MCU, real-time clock, LCD driver, and peripherals. Accurate to 0.1% over a 1000-to-1 dynamic range, they surpass the requirements of the IEC 62053-2x standards. They measure active and apparent energy, as well as rms voltage and current. In antitamper mode, ampere-hour information is accumulated instead of apparent power. Output data, provided in energy-measurement units, is ready for energy billing and other uses. Operating with a single 3.3-V supply, the ADE7116/56 consume 4 mA in normal mode, 3.2 mA in battery mode, and 1.5 μA in sleep mode. Available in 64-lead LQFP packages, they are specified from –40°C to +85°C and priced from $2.48/$2.56 in 1000s.

January 2009

11-bit, 200-Msps Pipelined ADC operates on 1.8-V supply

The AD9230-11 pipelined A/D converter provides 11-bit resolution with no missing codes at sampling rates to 200 Msps, making it ideal for broadband communications, radar, and test equipment. The fully differential analog input accepts signals with a programmable full-scale range of 1.0-V to 1.5-V, at frequencies up to 700 MHz. The outputs use parallel low-voltage differential signaling (LVDS), with data rates matching the sample rate. A double-data-rate output mode is supported for applications requiring a reduced number of output traces. Functionally complete, the ADC includes a high-performance track-and-hold and an on-chip voltage reference. With a 70-MHz analog input signal, its specifications include: 62.3-dBc signal-to-noise plus distortion (SINAD), 10.2 effective bits (ENOB), 79-dBc spurious-free dynamic range (SFDR), ±0.5-LSB integral nonlinearity (INL) and ±0.15-LSB differential nonlinearity (DNL). Operating with a single 1.8-V supply, the AD9230-11 consumes 338 mW at 200 Msps in double-data-rate mode. Specified from –40°C to +85°C, it is available in a 56-lead LFCSP package and priced at $36.43 in 1000s.

Quad 12-bit, 170-/210-/250-Msps Pipelined ADC operates on 1.8-V supply

The AD9239 quad pipelined A/D converter provides 12-bit resolution with no missing codes at sampling rates to 250 Msps, making it ideal for broadband communications, radar, and test equipment. The fully differential analog input accepts signals with a 1.25-V full-scale range, at frequencies up to 780 MHz. The output data is serialized and presented in packets consisting of channel-specific information, coded samples, and error-correction coefficients. Functionally complete, the device includes four input buffers, sample-and-hold amplifiers, and ADCs; a voltage reference; and a temperature sensor. With an 84.3-MHz analog input signal, its specifications include: 64.4-dBc signal-to-noise plus distortion (SINAD), 10.4 effective bits (ENOB), 79-dBc spurious-free dynamic range (SFDR), ±0.45-LSB integral nonlinearity (INL) and ±0.28-LSB differential nonlinearity (DNL). Operating with a single 1.8-V supply, the AD9239 consumes 285 mW per channel at 170 Msps, 152 mW in standby mode, and 3 mW in power-down mode. Specified from –40°C to +85°C, it is available in a 72-lead LFCSP package and priced from $101.15 in 1000s.

Single-phase Energy-Measurement ICs integrate MCU, RTC, and LCD driver

The ADE5166 and ADE5169 single-phase energy-measurement ICs integrate all the circuitry required to make an electronic energy meter with LCD display, including an analog front-end with two fully differential programmable-gain voltage inputs, fixed-function DSP, enhanced 8052-compatible MCU, real-time clock, LCD driver, and peripherals. Accurate to 0.1% over a 1000-to-1 dynamic range, they surpass the requirements of the IEC 62053-2x standards. They measure active and apparent energy, as well as rms voltage and current. The ADE5169 also measures reactive energy, with less than 0.5% error over a 1000-to-1 dynamic range. The data, provided in energy-measurement units, is ready for energy billing and other uses. In antitamper mode, the reactive power accumulated depends on the sign of the active power. Operating with a single 3.3-V supply, the ADE5166/69 consume 4.4 mA in normal mode, 3.3 mA in PSM1 mode, 38 μA in PSM2 mode, and 1.7 μA in sleep mode. Available in 64-lead LQFP packages, they are specified from –40°C to +85°C and priced at $3.29/$3.49 in 1000s.

December 2008

2-channel, 12-bit, ultralow-power Capacitance-to-Digital Converter

The two-channel AD7156 capacitance-to-digital converter interfaces with floating capacitive sensors in proximity sensors, level detectors, and contactless switches. A 12-bit sigma-delta converter measures the sensor capacitance, achieving 0.05% linearity over 0.5-/1-/2-/4-pF input ranges with 1-/1.4-/1.6/2.0-fF resolution. An on-chip digital-to-capacitance converter can balance common-mode capacitance of up to 10 pF. An adaptive threshold compensates for variations in sensor capacitance due to temperature and humidity. Operations can be programmed—and data can be read—via an I2C-compatible interface. Operating with a single 1.8-V to 3.6-V supply, the AD7156 consumes 70 μA in normal mode and 2 µA in power-down mode. Available in a 10-lead LFCSP package, it is specified from –40°C to +85°C and priced at $1.25 in 1000s.

24-bit, 4.8-kHz, ultralow-noise Sigma-Delta ADC with PGA

The AD7190 complete, low-noise, high-precision analog front-end for weigh scales, strain gauges, and pressure sensors includes a programmable-gain amplifier, and 24-bit sigma-delta ADC. It can be configured for two differential or four pseudo-differential inputs; a channel sequencer allows sequential conversion of each enabled input. The on-chip 4.92-MHz clock enables output data rates between 4.7 Hz to 4.8 kHz, with 22.5 noise-free bits at 4.7 Hz, 16 noise-free bits at 2.4 kHz, and 15-ppm max INL. The PGA gain can be set between 1 and 128, with 0.005% gain error and 1-ppm/°C gain drift. The digital filter can be programmed for data rate, settling time, and 50/60-Hz rejection. It also features a zero-latency mode. Operating on a single 5-V analog supply and a 3-V or 5-V digital supply, the AD7190 consumes 1.1 mA at G=1, 4.0 mA at G=8, and 5.5 mA at G=128. Available in a 24-lead TSSOP package, it is specified from –40°C to +105°C and priced at $5.90 in 1000s.

Dual, 12-bit, 3-/5-MSPS, differential, simultaneously sampling, SAR ADCs

The AD7352/AD7356 dual 12-bit, 3-/5-Msps successive-approximation ADCs combine two high-speed, low-power ADCs, two wideband, low-noise track-and-hold amplifiers, a voltage reference, and two independent reference buffers in a single package. The devices accept differential inputs in the range of ±VREF/2. The on-chip 2.048-V reference can be overdriven when an external reference is preferred. Twin signal paths allow simultaneous conversion of two inputs. Output data is available simultaneously on separate data lines—or in succession on a single data line to feed a single serial port. The successive-approximation architecture ensures that there will be no pipeline delays. Specifications include 71-dB signal-to-noise-plus-distortion (SINAD), –84-dB total harmonic distortion (THD), ±1-LSB max integral nonlinearity (INL), and ±0.99-LSB max differential nonlinearity (DNL). B- and Y- grades are specified from –40°C to +85°C and –40°C to +125°C, respectively. Operating on a single 2.5-V supply, the AD7352/56 consume 26/36 mW in normal mode and 16 µW in power-down mode. Available in 16-lead TSSOP packages, the converters are priced from $5.50/$7.89 in 1000s.

8-channel, 16-bit, 500-ksps Successive-Approximation ADC

The AD7699 8-channel, 16-bit, 500-ksps successive-approximation ADC combines a multiplexer, selectable single-pole low-pass filter, and 16-bit sampling ADC, with a low-drift buffered reference, temperature sensor, channel sequencer, and SPI-compatible interface. The multiplexer accepts single-ended unipolar, pseudo-differential bipolar, or fully differential inputs with a full-scale range of 0 to VREF. The reference can be internal (4.096 V), or external (up to 4.096 V, using the buffer, or up to VDD, bypassing the buffer). The successive-approximation architecture ensures no pipeline delays. Specifications include 91.5-dB signal-to-noise-plus-distortion (SINAD), –97-dB total harmonic distortion (THD), ±0.5-LSB integral nonlinearity (INL), and ±0.25-LSB differential nonlinearity (DNL). Operating on a single 4.5-V to 5.5-V supply, the AD7699 consumes 28 mW at 250 ksps, 5.2 mW at 100 ksps, and 250 nW in standby mode. Available in a 20-lead LFCSP package, it is specified from –40°C to +85°C and priced at $7.99 in 1000s.

Low-voltage Touch-Screen Controller

The AD7879 touch-screen controller features a 12-bit, 105-Msps successive-approximation ADC and low on-resistance switches for driving low-voltage, 4-wire resistive touch screens. It can run in slave mode or in standalone mode—which uses an automatic conversion sequencer and timer. User-programmable median- and averaging filters reduce the effects of LCD noise. Acquisition time, conversion delay, and averaging are also user programmable. A programmable pin can operate as an ADC input, battery monitor, or digital I/O. An on-chip temperature sensor measures local temperature to within ±2°C. All control signals and data are all communicated via the synchronous serial interface. Operating on a single 1.6-V to 3.6-V supply, the AD7879 consumes 480 μA in converting mode and 0.5 μA in shutdown mode. Available in 12-ball WLCSP and 16-lead LFCSP packages, it is specified from –40°C to +85°C and priced at $0.93 in 10,000s.

8-channel, low-noise Analog Front-End for medical imaging

The AD9272 analog front-end for medical imaging, ultrasound, and radar applications comprises eight time-gain control (TGC) channels—each consisting of a low-noise preamplifier (LNA), a variable-gain amplifier (VGA), an anti-aliasing filter (AAF), and a 12-bit, 80-Msps analog-to-digital converter (ADC). It also includes an 8 × 8 differential crosspoint switch for use in continuous-wave (CW) Doppler mode. Each channel is a fully differential signal path with 42-dB gain range, 52-dB maximum gain, 0.75-nV/rt-Hz input-referred noise, and 92-dB input signal-to-noise ratio (SNR). The AD9272 consumes 195 mW at 40 Msps and 120 mW in CW mode. Available in a 100-lead TQFP package, it is specified from –40°C to +85°C and priced from $54.00 in 1000s.

8-channel, low-power Analog Front-End for medical imaging

The AD9273 analog front-end for medical imaging, ultrasound, and radar applications comprises eight time-gain control (TGC) channels—each consisting of a low-noise preamplifier (LNA), a variable-gain amplifier (VGA), an anti-aliasing filter (AAF), and a 12-bit, 50-Msps analog-to-digital converter (ADC). It also includes an 8 × 8 differential crosspoint switch for use in continuous-wave (CW) Doppler mode. Each channel is a fully differential signal path with 42-dB gain range, 52-dB maximum gain, 1.2-nV/rt-Hz input-referred noise, and 91-dB input signal-to-noise ratio (SNR). The AD9273 consumes 109 mW at 40 Msps and 70 mW in CW mode. Available in a 100-lead TQFP package, it is specified from –40°C to +85°C and priced from $51.00 in 1000s.

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Audio/Video Products

September 2009

Triple skew-compensating Video Delay Line

The AD8120 triple skew-compensating video delay line corrects for time mismatch incurred by video signals during transmission over Cat-5 and Cat-6 unshielded twisted-pair cables. Three signal paths provide broadband delays of up to 50 ns in 0.8-ns increments using 64-step digital control over I2C or SPI buses. Simple analog voltage control can be used in systems without digital control. Bandwidth ranges from 150 MHz with a 50-ns delay to 200 MHz with a 0-ns delay. Operating on ±4.5-V to ±5.5-V dual supplies, the AD8120 consumes 114 mA with a 50-ns delay, 44 mA with a 0-ns delay, and 4 mA in power-down mode. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and priced at $14.75 in 1000s.

Low-power HDMI/DVI Transmitter with consumer electronics control

The ADV7523 low-power 80-MHz HDMI/DVI transmitter supports HDTV formats up to 720p/1080i and graphic resolutions up to XGA (1024 × 768 @ 75 Hz), ideal properties for digital cameras, personal media players, and other portable applications. Compatible with HDMI v1.3, DVI v1.0, and HDCP v1.3 protocols, the transmitter supports S/PDIF for stereo- or compressed audio and I2S for 7.1-channel surround sound at up to 192 kHz. System design is simplified by on-chip support for high-bandwidth digital content protection (HDCP) with embedded keys, extended display identification data (EDID), and consumer electronics control (CEC)—which allows a user to control multiple CEC-enabled boxes with one remote, and individual CEC-enabled boxes to control each other. Operating on 1.1-V to 1.9-V and 1.7-V to 1.9-V supplies, the ADV7523 accepts 1.8-V to 3.3-V audio- and video signals—and provides 5-V tolerance on the I2C and hot-plug detect pins. Available in a 49-lead WLCSP package, it is specified from –25°C to +85°C and priced at $3.16 in 1000s.

Quad deep-color HDMI Receiver

The ADV7614 quad deep-color HDMI v1.3 receiver supports all HDTV formats up to 1080p and display resolutions up to UXGA (1600 × 1200 @ 60 Hz). High-bandwidth digital content protection (HDCP v1.3) enables reception of encrypted video; and consumer electronics control (CEC) allows device wake-up by a remote control command, saving power and ensuring Energy-Star compliance. Adaptive equalization facilitates operation with cables up to 30 m in length. The device supports multiple audio formats, including I2S, S/PDIF, Dolby® TrueHD and DTS® HD. Available in a 260-ball CSP-BGA package, the ADV7614 is specified from –40°C to +70°C and priced at $13.06 in 1000s.

12-bit, 170-MHz Video/Graphics Digitizer and quad HDMI receiver

The ADV7840 deep color video/graphics digitizer, which integrates an analog interface and an HDMI v1.3 receiver, supports all HDTV formats up to 1080p and display resolutions up to UXGA (1600 × 1200 @ 60 Hz). The 12-bit, 170-MHz analog interface decodes YPrPb or RGB component video—or digitizes RGB graphics—into a digital YCrCb or RGB pixel output stream. The HDMI receiver includes high-bandwidth digital content protection (HDCP)—enabling reception of encrypted video—and consumer electronics control (CEC), for device wake-up by a remote control command, saving power and ensuring Energy-Star compliance. A 3D comb filter provides digital noise reduction. Simultaneous processing of HDMI and analog video sync allows fast switching between HDMI and analog video inputs. Adaptive equalization facilitates operation with cables up to 30 m in length. Available in a 416-ball CSP-BGA package, the ADV7840 is specified from –40°C to +70°C and priced at $18.00 in 1000s.

June 2009

SigmaDSP Digital Audio Processor has flexible audio-routing matrix

The ADAU1446 SigmaDSP® audio processor multiplexes inputs and outputs running at various sampling rates, simplifying signal routing and clock management in digital audio systems. The flexible audio routing matrix includes an S/PDIF transceiver and 24 time-division-multiplexed I/Os. Any of the inputs and outputs can be routed to or taken from the SigmaDSP core, and the routing scheme can be modified at any time via on-chip control registers. The 28-/56-bit digital audio processor—fully programmable using the SigmaStudio™ graphical tool to compensate for real-world limitations of speakers, amplifiers, and listening environments—provides a dramatic improvement in perceived audio quality. Operating with 1.8-V and 3.3-V supplies, the ADAU1446 consumes 500 mW max. Available in a 100-lead LQFP package, it is specified from –40°C to +105°C and priced at $8.28 in 1000s.

Low-power Mobile TV Tuner IC for ISDB-T

The ADMTV202 low-power TV tuner IC provides low-IF, single-conversion tuning for terrestrial Integrated Services Digital Broadcasting (ISDB-T) digital mobile TV in cell phones, personal media players, and automobile infotainment systems. A highly integrated device, it includes a UHF low-noise amplifier (LNA), an RF programmable-gain amplifier (PGA), a down-conversion mixer, a complex band-pass filter, an IF PGA, a VCO, and a fractional-N PLL. Operating with a 1.8-V supply, the ADMTV202 consumes 75 mW. Available in a 23-ball WLCSP package, it is priced at $3.00 in 1000s.

2 × 2-W filterless Class-D Stereo Audio Amplifier has tiny package, ultra low EMI

The SSM2356 stereo Class-D audio amplifier can deliver 2 × 2 W of continuous output power into 4-ohm loads—or 2 × 1.4 W into 8-ohm loads—with 92% efficiency, 103-dB signal-to-noise ratio (SNR), and less than 1% distortion. It can directly drive speakers in mobile phones, MP3 players, and other battery-powered portable devices. Its design minimizes clicks and pops, turn-on glitches, and EMI emissions—and provides thermal shutdown and short-circuit protection. Edge mode allows users to further reduce the EMI of the Class-D output. The gain of the fully differential input signal path can be set to 6 dB or 18 dB with no external components; and it can be reduced by adding external series resistors. Operating on a single 2.5-V to 5.5-V supply, the SSM2356 consumes 5.5 mA in normal mode and 20 nA in shutdown mode. Available in a 1.6-mm × 1.6-mm 16-ball WLCSP package, it is specified from –40°C to +85°C and priced at $0.90 in 1000s.

March 2009

24-bit, 96-kHz, stereo Audio Codec with integrated PLL

The ADAU1361 low-power stereo audio codec supports 48-kHz record and playback while consuming only 10 mW at 1.8 V. The codec supports 24-bit data at 8-kHz to 96-kHz sampling rates, providing 100-dB dynamic range (DR). The record path includes a microphone bias circuit and six analog inputs, which can be can be mixed and muxed to a stereo ADC—or they can be routed directly to the analog output mixers. A stereo digital microphone input is also supported. The playback path includes a stereo DAC, analog output mixer, and five high-power output drivers—two differential and three single-ended—that support stereo headphones, an earpiece, or other output transducer. Individual fine-level control is provided on all seven outputs. The control bus is compatible with I2C and SPI protocols; and the audio bus is programmable for I2S, left/right justified, and TDM modes. A PLL generates sampling clocks from master clocks between 8 MHz and 27 MHz. Available in a 32-lead LFCSP package, the ADAU1361 is specified from –40°C to +85°C and priced at $2.88 in 1000s.

SigmaDSP Digital Audio Processor has flexible audio-routing matrix

The ADAU1445 SigmaDSP® audio processor multiplexes inputs and outputs running at various sampling rates, simplifying signal routing and clock management in digital audio systems. The flexible audio routing matrix includes two 8-channel asynchronous sample rate converters, an S/PDIF transceiver, and 24 time-division-multiplexed I/Os. Any of the inputs can be routed to the sample rate converter or the SigmaDSP core, and any of the outputs can be taken from the sample rate converter or SigmaDSP core. The routing scheme can be modified at any time via on-chip control registers. The 28-/56-bit digital audio processor is fully programmable using the SigmaStudio™ graphical tool to compensate for real-world limitations of speakers, amplifiers, and listening environments, thus providing a dramatic improvement in perceived audio quality. Operating with 1.8-V and 3.3-V supplies, the ADAU1445 consumes 640 mW max. Available in a 100-lead TQFP-EP package, it is specified from –40°C to +105°C and priced at $9.31 in 1000s.

24-bit, 96-kHz, SigmaDSP stereo Audio Codec with integrated PLL

The ADAU1761 low-power SigmaDSP® stereo audio codec supports 48-kHz record and playback while consuming only 10 mW at 1.8 V. The codec supports 24-bit data at 8-kHz to 96-kHz sampling rates, providing 100-dB dynamic range (DR). The record path includes a microphone bias circuit and six analog inputs, which can be can be mixed and muxed to a stereo ADC—or they can be routed directly to the analog output mixers. A stereo digital microphone input is also supported. The playback path includes a stereo DAC, analog output mixer, and five high-power output drivers—two differential and three single-ended—that support stereo headphones, an earpiece, or other output transducer. Individual fine-level control is provided on all seven outputs. The control bus is compatible with I2C and SPI protocols; and the audio bus is programmable for I2S, left/right justified, and TDM modes. A PLL generates sampling clocks from master clocks between 8 MHz and 27 MHz. The 28-/56-bit, 50-MIPS digital-audio processor is fully programmable using the SigmaStudio™ graphical tool. Available in a 32-lead LFCSP package, the ADAU1761 is specified from –40°C to +85°C and priced at $3.91 in 1000s.

12-bit, 170-MHz Video/Graphics Digitizer and quad HDMI receiver

The ADV7604 deep color video/graphics digitizer, which integrates an analog interface and an HDMI receiver, supports all HDTV formats up to 1080p 12-bit deep color and display resolutions up to UXGA (1600 × 1200 @ 60 Hz). The 12-bit, 170-MHz analog interface decodes YPrPb or RGB component video—or digitizes RGB graphics—into a digital YCrCb or RGB pixel output stream. The HDMI receiver includes high-bandwidth digital content protection (HDCP)—enabling reception of encrypted video—and consumer electronics control (CEC)—which allows the device to wake up when a remote control command is received, saving power and ensuring Energy-Star compliance. Simultaneous processing of HDMI and analog video sync allows fast switching between HDMI and analog video inputs. Adaptive equalization facilitates operation with cables up to 30 m in length. Available in a 260-ball CSP-BGA package, the ADV7604 is specified from –40°C to +70°C and priced at $14.86 in 1000s.

February 2009

2-channel, 14-bit HD Image Signal Processor with Precision Timing Core

The AD9978A HD image signal processor integrates two complete analog front-ends, making it ideal for high-speed digital still cameras, digital video cameras, and digital copiers that use advanced 2-channel CCD or CMOS imagers. The analog front-end conditions the raw image signal with a correlated double-sampler (CDS) or sample-and-hold amplifier (SHA) with –3-dB to +6-dB gain, a variable-gain amplifier (VGA) with 6-dB to 42-dB gain, and a 14-bit, 75-MHz A/D converter. The Precision Timing™ core allows adjustment of the internal sampling clocks with 210 ps resolution at 75 MHz operation. A reduced range, low-voltage differential signaling (LVDS) interface provides the data outputs. Specified from –25°C to +85°C, the AD9978A operates with a 1.8-V supply. Available in a 40-lead LFCSP package, it is priced at $25.32 in 1000s.

4:1 HDMI/DVI Switch provides equalization, DDC/CEC buffers, EDID replication

The ADV3002 video switch selects one of four HDMI (high-definition-multimedia-interface) or DVI (digital-visual-interface) input links—each comprising four TMDS (transition-minimized-differential-signaling) channels—and routes it to a common output link. Input equalization compensates for long (>20-m) cables. Supporting data rates up to 2.25 Gbps and pixel clocks up to 225 MHz, it enabes DVI resolutions up to UXGA (1600 × 1200) and HDMI formats up to 1080p. It also includes bidirectional buffers for the DDC (display-data-channel) bus and CEC (consumer electronic control) line, and EDID (extended display identification data) replication—thus implementing a complete HDMI 1.3a-compliant interface on a single chip. Operating with 3.3-V and 5-V supplies, the ADV3002 consumes 661 mW with outputs enabled and 232 mW with outputs disabled. Available in an 80-lead LQFP package, it is specified from 0°C to +85°C and priced at $2.65 in 1000s.

January 2009

SoundMAX Audio Codec supports high-definition audio

The AD1989B high-definition SoundMAX® audio codec includes six 24-bit, 192-kHz sigma-delta A/D converters (arranged as three stereo ADCs), ten 24-bit, 192-kHz sigma-delta D/A converters (arranged as five stereo DACs) and a 32-bit computation engine, allowing it to provide high-quality audio that exceeds Windows Vista Premium® performance specifications. The S/PDIF port supports sampling rates from 44.1 kHz to 192 kHz in PCM and AC3 formats; a second transmitter can support an external HDMI interface. Four stereo output ports, four bidirectional stereo I/O ports, and a monophonic output port can be configured to support headphones, microphones, surround-sound and LFE amplifiers, line inputs and outputs, and an internal speaker. Designed for top-of-the-line desktop- and notebook computers, the codec provides 101-dB dynamic range on the line- and headphone outputs and 92-dB on the audio inputs. Operating with 3.3-V analog- and digital supplies, the AD1989B consumes 400 mW. Available in a 48-lead LFCSP package, it is specified from 0°C to 70°C and priced at $2.97 in 1000s.

Triple high-speed Video Amplifier provides rail-to-rail outputs, fixed gain of 2

The ADA4856-3 rail-to-rail op amp features 225-MHz bandwidth, 800-V/μs slew rate, 5-ns settling time to 0.1%, 0.01% differential gain error, and 0.01° differential phase error, making it ideal for professional and consumer video, imaging, and active filters. The input common-mode range extends below ground, and the outputs can swing to within 200 mV of either rail, providing true single-supply operation. Operating on a single 3-V to 5.5-V supply, the ADA4856-3 consumes 7.5 mA per amplifier in normal mode and 1 mA in power-down mode. Specified from –40°C to +105°C, it is available in a 16-lead LFCSP package and priced at $1.39 in 1000s.

Triple high-speed Video Amplifier with charge pump provides fixed gain of 2

The ADA4859-3 op amp features 195-MHz bandwidth, 740-V/μs slew rate, 20-ns settling time to 0.1%, 0.01% differential gain error, and 0.02° differential phase error, making it ideal for professional and consumer video, imaging, and active filters. The on-chip charge pump eliminates the need for a negative supply, while allowing a –1.8-V to +3.8-V input common-mode range and a –1.7-V to +3.8-V output swing. Operating on a single 3-V to 5.5-V supply, the ADA4859-3 consumes 38 mA total, including the charge pump, and 4.25 mA in power-down mode. Specified from –40°C to +105°C, it is available in a 16-lead LFCSP package and priced at $1.69 in 1000s.

December 2008

SoundMAX Audio Codec supports high-definition audio

The AD1882A high-definition SoundMAX® audio codec includes four 24-bit, 192-kHz sigma-delta A/D converters (arranged as two stereo ADCs), six 24-bit, 192-kHz sigma-delta D/A converters (arranged as three stereo DACs) and a 32-bit computation engine, allowing it to provide high-quality audio that exceeds Windows Vista Premium® performance specifications. It supports two mono- or one stereo digital microphone on a single input pin. The two stereo h headphone outputs are useful for gaming and VoIP. The S/PDIF port supports sampling rates from 44.1 kHz to 192 kHz in PCM and AC3 formats. Designed for desktop- and high-performance notebook- computers, the codec provides 95-dB dynamic range on the audio outputs and 90-dB on the audio inputs. Operating with 3.3-V analog- and digital supplies, the AD1882A consumes 390 mW. Available in a 48-lead LFCSP package, it is specified from 0°C to 70°C and priced at $2.41 in 1000s.

RF Tuner IC for DVB-H, DVB-T, DTMB, and CMMB

The ADMTV102 zero-IF conversion tuner IC for dual-band mobile TV applications covers UHF bands IV and V—from 470 MHz to 862 MHz. Comprising two low-noise amplifiers (LNA), an RF programmable-gain amplifier (PGA), an I/Q down-conversion mixer, two adjustable-bandwidth low-pass filters, two baseband variable-gain amplifiers (VGA), a voltage-controlled oscillator (VCO), and a fractional-N phase-locked loop (PLL), it implements a complete low-noise DVB-H, DVB-T, DTMB, and CMMB tuner on a single chip. Operating on a 1.8-V supply, the ADMTV102 consumes 200 mW. Available in a 32-lead LFCSP package, it is priced at $2.90 in 1000s.

3-W high-efficiency, filterless monophonic Class-D Audio Amplifier

The SSM2335 monophonic Class-D audio amplifier can deliver 3 W of continuous output power into a 3-ohm load—or 1.4 W into an 8-ohm load—with 93% efficiency, 96-dB signal-to-noise ratio (SNR), and less than 1% distortion, allowing it to directly drive speakers in mobile phones, MP3 players, and other battery-powered portable devices. Its design minimizes clicks and pops, turn-on glitches, and EMI emissions—and provides thermal shutdown and short-circuit protection. The 18-dB nominal gain of the fully differential input signal path can be reduced by adding two external resistors. Operating on a single 2.5-V to 5.5-V supply, the SSM2335 consumes 3.2 mA in normal mode and 20 nA in shutdown mode. Available in a 9-ball WLCSP package, it is specified from –40°C to +85°C and priced at $0.63 in 1000s.

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Digital-to-Analog Converters

November 2009

Dual 16-bit, 1.2-GSPS TxDAC+ Digital-to-Analog Converter

ad9122The AD9122 dual 16-bit, 1.2-GSPS TxDAC+® digital-to-analog converter enables multicarrier signal generation up to the Nyquist frequency. Optimized for direct-conversion transmit applications, it includes complex digital modulation—with a 32-bit NCO providing fine-resolution IF placement to optimize performance. The 2×/4×/8× interpolation supports 400-MHz signal bandwidth, phase compensation, and image cancellation; and the on-chip clock-multiplier improves ACLR by 10 dB. The DAC outputs interface seamlessly with quadrature modulators in the ADL537x and ADRF670x families. The flexible LVDS interface allows word-, byte-, or nibble load—reducing pin count, cost, and PCB area. The eight-deep FIFO eases digital interface timing. Operating on 1.8-V and 3.3-V supplies, the AD9122 dissipates 1135 mW in 8× mode, 834 mW in 2× mode, and 2.5 mW in power-down mode. Available in a 72-lead LFCSP package, it is specified from –40°C to +85°C and priced at $34.50 in 1000s.

September 2009

Quad 16-bit nanoDAC® Digital-to Analog Converter has unbuffered voltage outputs

The AD5066 quad voltage-output DAC provides 16-bit resolution with 1-LSB max differential nonlinearity (DNL). B-/A-grades specify 1-/4-LSB max integral nonlinearity (INL). Each DAC has an individual reference input, and an unbuffered voltage output that can drive a 60-kilohm load. The low-power SPI-compatible serial interface can be clocked at up to 50 MHz. The double-buffered inputs allow all DACs to be updated simultaneously, and to be cleared to a programmed value. Each channel can be individually powered down, resetting to zero or midscale when powered up. Operating on a single 2.7-V to 5.5-V supply, the AD5066 consumes 2.5 mA in normal mode and 0.4 µA in power-down mode. Available in a 16-lead TSSOP package, it is specified from –40°C to +125°C. A-/B-grades are priced at $8.90/$11.50 in 1000s.

Single/quad 12-bit Voltage-Output DACs provide high-voltage outputs

The single AD5501 and quad AD5504 12-bit, serial-input, high-voltage-output DACs have pin-selectable output ranges of 0 V to 30 V and 0 V to 60 V. Functionally complete, they include a precision voltage reference, temperature sensor, one/four double-buffered DACs, and one/four high-voltage amplifiers. Upon power up, the digital section is enabled and set to a known state; the analog section remains disabled until a power-up command is issued via the SPI port. The temperature sensor disconnects the analog outputs and sets an alarm flag if the die temperature exceeds 110°C. The AD5501/04 specify 1-LSB max differential nonlinearity (DNL), 1-/2-LSB max integral nonlinearity (INL) in 60-V mode, and 2-/3-LSB max INL in 30-V mode. Operating on 10-V to 62-V and 2.3-V to 5.5-V supplies, they consume 0.6/2.0 mA in normal mode and 30 µA in power-down mode. Available in 16-lead TSSOP packages, they are specified from –40°C to +105°C and priced at $4.58/$9.92 in 1000s.

June 2009

256-/1024-position Digital Potentiometers are 1% accurate, 20-time programmable

The AD5291/AD5292 digital potentiometers feature 256-/1024-position resolution. End-to-end resistance options of 20 kohm, 50 kohm, and 100 kohm are available, with better than 1% tolerance—and temperature coefficients of 35 ppm/°C in rheostat mode and 5 ppm/°C (ratio) in divider mode. The devices perform the same electronic adjustment function as mechanical potentiometers, but are smaller and more reliable. Their wiper position can be adjusted via an SPI-compatible interface. Unlimited adjustments can be made before blowing a fuse to fix the wiper position, a process analogous to putting epoxy on a mechanical trimmer. This process can be repeated up to 20 times ("removing the epoxy"). Operating on a single 9-V to 33-V supply or dual ±9-V to ±16.5-V supplies, the AD5291/92 dissipate 8 μW. Available in 14-lead TSSOP packages, they are specified from –40°C to +105°C and priced at $2.29/$2.62 in 1000s.

1024-position Digital Potentiometer is 1% accurate

The AD5293 digital potentiometer features 1024-position resolution. End-to-end resistance options of 20 kohm, 50 kohm, and 100 kohm are available, with better than 1% tolerance—and temperature coefficients of 35 ppm/°C in rheostat mode and 5 ppm/°C (ratio) in divider mode. The device performs the same electronic adjustment function as a mechanical potentiometer, but is smaller and more reliable. Its wiper position can be adjusted via an SPI-compatible interface. Operating on a single 9-V to 33-V supply or dual ±9-V to ±16.5-V supplies, the AD5293 dissipates 8 μW. Available in a 14-lead TSSOP package, it is specified from –40°C to +105°C and priced at $2.55 in 1000s.

12-/16-bit, serial input, Current Source and Voltage Output DACs

The AD5412/AD5422 serial-input DACs provide both current source and voltage outputs, with 12-/16-bit resolution and ±0.01% total unadjusted error, making them ideal for industrial process-control applications. The current output range is programmable for 0 mA to 20 mA, 4 mA to 20 mA, or 0 mA to 24 mA. The voltage output, available from a separate pin, is programmable for 0 V to 5 V, 0 V to 10V, ±5 V, and ±10 V ranges; 10% over-range capability is available on all ranges. Protected against open- and short circuits, these robust devices can drive 1-μF loads. The SPI-compatible serial interface simplifies the task of adding galvanic isolation when it is required. A power-on-reset function ensures that the devices power up in a known state; an asynchronous clear function sets the DAC output to zero volts or the low end of the selected current range. Operating with 10.8-V to 40-V and 0-V to –26.4-V supplies, the AD5412/22 dissipate 120 mW. Available in 24-lead TSSOP packages, they are specified from –40°C to +85°C and priced from $3.79/$4.95 in 1000s.

14-bit, 2400-Msps RF DAC with 4-channel QAM signal processing

The AD9789 signal-processing DAC combines a flexible QAM encoder, interpolator, and upconverter with a high-performance 14-bit, 2400-Msps RF digital-to-analog converter. The 150-MHz LVDS/CMOS digital interface accepts up to four channels of complex data. The QAM encoder supports 16-/32-/64-/128-/256-point constellation sizes, and includes square-root raised cosine (SRRC) filter coefficients for all standards. Operating from the 2.4-GHz DAC clock, the sample-rate converter supports a wide range of baud rates. The digital upconverter can synthesize and place four contiguous channels anywhere from dc to FDAC/2. Operating on 1.5-V, 1.8-V, and 3.3-V supplies, the AD9789 dissipates 1.7 W. Available in a 164-ball CSPBGA package, it is specified from –40°C to +85°C and priced from $53.10 in 1000s.

May 2009

12-/16-bit Current-Source DACs

The AD5410/AD5420 current-source DACs achieve 12-/16-bit resolution with 1-LSB differential linearity and 0.1% total unadjusted error. Designed for industrial process control, they provide programmable output current ranges of: 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA. The open-circuit-protected output can drive inductive loads up to 1 H. The SPI-compatible serial interface simplifies the task of adding galvanic isolation when it is required. A power-on-reset function ensures that the devices power up in a known state; an asynchronous clear function sets the DAC output to the low end of the selected current range. Operating with a single 10.8-V to 40-V supply, the AD5410/20 dissipate 144 mW at 40 V and 50 mW at 15 V. Available in 24-lead TSSOP packages, they are specified from –40°C to +85°C and priced at $3.35/$4.32 in 1000s.

Quad 12-bit, serial-input, Voltage-Output DAC

The AD5724R quad voltage-output DAC features 12-bit resolution with ±1-LSB INL and DNL. Functionally complete, it includes double-buffered input registers; 2.5-V reference (5 ppm°/C max); reference buffers; and output buffers—and provides software-selectable output ranges of +5 V, +10 V, +10.8 V, ±5 V, ±10 V, and ±10.8 V. The DAC output is zero volts at power-up, remaining there until a valid write occurs. The 3-wire serial interface operates at clock rates up to 30 MHz. Operating with 4.5-V to 16.5-V or ±4.5-V to ±16.5-V analog supplies and a 2.7-V to 5.5-V digital supply, the AD5724R consumes 310 mW max. Available in a 24-lead TSSOP package, it is specified from –40°C to +85°C and priced at $8.95 in 1000s.

April 2009

14-bit, 2500-Msps Current-Output DAC

The AD9739 high-performance DAC achieves 14-bit resolution at sample rates up to 2500 Msps, enabling multicarrier generation up to the Nyquist frequency in baseband mode and second and third Nyquist zones in mix mode. The dual-port, double-data-rate LVDS interface has 100-ohm terminations. The current outputs, configurable for single-ended or differential topologies, provide a programmable full-scale output-current range of 8.66 mA to 31.66 mA. Linearity specifications are ±0.8-LSB DNL and ±1.3-LSB INL. Operating on 1.8-V and 3.3-V supplies, the AD9739 consumes 1.16 W at 2.5 Gbps, 940 mW at 2 Gbps, 15 mW in sleep mode, and 8 mW in power-down mode. Available in a 160-ball CSP-BGA package, it is specified from –40°C to +85°C and priced from $43.69 in 1000s.

March 2009

Quad 14-/16-bit, serial-input, Voltage-Output DACs

The AD5734R/AD5754R quad voltage-output DACs feature 14-/16-bit resolution with ±4-/±16-LSB INL and guaranteed monotonicity. Functionally complete, they include double-buffered input registers, 2.5-V, 5 ppm°/C (max) reference, reference buffers, and output buffers—and provide software-selectable output ranges of +5 V, +10 V, +10.8 V, ±5 V, ±10 V, and ±10.8 V. The DAC output is zero volts at power-up, remaining there until a valid write occurs. The 3-wire serial interface operates at clock rates up to 30 MHz. Operating with a 2.7-V to 5.5-V digital supply and 4.5-V to 16.5-V or ±4.5-V to ±16.5-V analog supplies, the AD5734R/54R consume 310 mW max. Available in 24-lead TSSOP packages, they are specified from –40°C to +85°C and priced at $10.95/$12.95 in 1000s.

Dual and quad 16-bit, serial input, Voltage-Output DACs

The dual AD5763 and quad AD5765 serial-input, voltage-output DACs feature 16-bit resolution with ±1-LSB max integral- and differential nonlinearity. Operating with an external 2.048-V reference, they include reference buffers, output amplifiers, per-channel offset- and gain adjustment registers, temperature sensor, proprietary power-up/power-down circuitry, and digital I/O port. The double-buffered inputs allow simultaneous updating of all channels. The nominal output range is ±4.096-V. Operating with a 2.7-V to 5.5-V digital supply and ±4.75-V to ±5.25-V analog supplies, the AD5763/65 consume 45 mW. Available in 32-lead TQFP packages, they are specified from –40°C to +105°C and priced from $11.45/$16.50 in 1000s.

February 2009

Dual 12-/14-/16-bit serial-input, voltage-output Digital-to-Analog Converters

The AD5722R/AD5732R/AD5752R dual serial-input, voltage-output DACs provide 12-/14-/16-bit resolution with ±1-/±4-/±16-LSB max integral nonlinearity (INL) and ±1-LSB max differential nonlinearity (DNL). Functionally complete, they include double-buffered input registers, reference buffers, and output amplifiers with software-selectable output ranges of: 0 to 5 V, 0 to 10 V, 0 to 10.8 V, ±5 V, ±10 V, and ±10.8 V. An on-chip 2.5-V, 5-ppm/°C max reference, disabled at power-up, can be activated digitally or driven by an external low-impedance voltage source. The DAC outputs are reset to zero at power-up, remaining there until a valid write takes place. Both DACs can be simultaneously updated or cleared to zero or midscale. The 3-wire serial interface operates at clock rates up to 30 MHz. Operating on a single 4.5-V to 16.5-V or dual ±4.5-V to ±16.5-V analog supplies, and a 2.7-V to 5.5-V digital supply, the AD5722R/32R/52R consume 3.25 mA max per channel in normal mode and 40 μA in power-down mode. Available in 24-lead TSSOP packages, they are specified from –40°C to +85°C and priced at $5.50/$7.50/$8.95 in 1000s.

Dual, complete, high-accuracy, 16-bit serial-input, voltage-output DAC

The AD5762R dual serial-input, voltage-output DAC features 16-bit resolution with ±1-LSB max integral- and differential nonlinearity. It includes a low-drift 5-V, 10-ppm/°C max reference, reference buffers, output amplifiers, per-channel offset- and gain adjustment registers, temperature sensor, proprietary power-up/power-down circuitry, and a 30-MHz serial interface. The nominal full-scale output range is ±10-V. The output is clamped to zero volts during power up, and can be asynchronously cleared to zero scale or bipolar zero. The double-buffered inputs allow simultaneous updating of all channels. Operating on a 2.7-V to 5.25-V digital supply and ±11.4-V to ±16.5-V analog supplies, the AD5762R consumes 180 mW. Available in a 32-lead TQFP package, it is specified from –40°C to +85°C and priced at $16.92 in 1000s.

January 2009

10-bit Current-Output DACs can sink 120 mA

The AD5398A and AD5821A 10-bit current-output DACs can sink currents up to 120 mA, a useful property for auto focus, image stabilization, and optical-zoom applications in camera phones, digital still cameras, and camcorders. Functionally complete, they include a voltage reference, current-sense resistor, and 2-wire I2C-compatible serial interface. Upon power-up, the DAC output is reset to zero, where it remains until a valid write takes place. Operating with a single 2.7-V to 5.5-V supply, the AD5398A/AD5821A consume 0.5 mA in normal mode and 0.5 μA in power-down mode. Available in 9-ball WLCSP packages, they are specified from –30°C to +85°C and priced at $0.49 in 1000s.

Dual 12-/14-/16-bit serial-input, voltage-output Digital-to-Analog Converters

The AD5722/AD5732/AD5752 dual serial-input, voltage-output DACs provide 12-/14-/16-bit resolution with ±1-/±4-/±16-LSB max integral nonlinearity (INL) and ±1-LSB max differential nonlinearity (DNL). Functionally complete, they include double-buffered input registers, reference buffers, and output amplifiers with software-selectable output ranges of: 0 to 5 V, 0 to 10 V, 0 to 10.8 V, ±5 V, ±10 V, and ±10.8 V. Upon power-up, the DAC outputs are reset to zero, where they remain until a valid write takes place. Both DACs can be simultaneously updated or cleared to zero or midscale. The 3-wire serial interface operates at clock rates up to 30 MHz. Operating on a single 4.5-V to 16.5-V supply or dual ±4.5-V to ±16.5-V supplies, the AD5722/32/52 consume 2.4 mA per channel in normal mode and 40 μA in power-down mode. Available in 24-lead TSSOP packages, they are specified from –40°C to +85°C and priced from $3.50 in 1000s.

December 2008

Dual high-linearity 12-/14-/16-bit voltage-output Digital-to-Analog Converters

The AD5025/AD5045/AD5065 dual voltage-output nanoDAC® D/A converters provide 12-/14-/16-bit resolution with ±0.25-/±0.5-/±1-LSB max integral nonlinearity (INL) and ±1-LSB max differential nonlinearity (DNL). Each of the DACs has a dedicated reference input and reference buffer, allowing independent setting of the full-scale output voltages. Each channel can be individually powered down, resetting to zero or midscale when powered up. Double-buffered inputs allow both DACs to be simultaneously updated or cleared to a programmed value. The 3-wire, low-power serial interface clocks at up to 50 MHz. Operating on a single 4.5-V to 5.5-V supply, the AD5025/45/65 consume 2.2 mA in normal mode and 0.4 μA in power-down mode. Available in 14-lead TSSOP packages, they are specified from –40°C to +125°C and priced at $2.40/$7.05/$11.25 in 1000s.

Quad, complete, high-accuracy, 14-/16-bit serial-input, voltage-output DACs

The AD5744R/AD5764R quad serial-input, voltage-output DACs feature 14-/16-bit resolution with ±1-LSB max integral- and differential nonlinearity. They include a low-drift 5-V reference, reference buffers, output amplifiers, per-channel offset- and gain adjustment registers, temperature sensor, proprietary power-up/power-down circuitry, and a 30-MHz serial interface. The nominal full-scale output range is ±10-V. The output is clamped to zero volts during power up, and can be asynchronously cleared to zero scale or bipolar zero. Operating on a 2.7-V to 5.25-V digital supply and ±11.4-V to ±16.5-V analog supplies, the AD5744R/64R consume 275 W in normal mode. Available in 32-lead TQFP packages, they are specified from –40°C to +85°C and priced from $23.60/$27.52 in 1000s.

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Embedded Processing and DSP

June 2009

Blackfin Embedded Processors

The ADSP-BF523/ADSP-BF525/ADSP-BF527 and ADSP-BF523C/ADSP-BF525C/ADSP-BF527C Blackfin Processors, optimized for low-power portable applications, combine the multimedia signal-processing power of a single-instruction, multiple-data (SIMD) DSP with the control capabilities of a RISC microcontroller. With two 16-bit MACs, two 40 bit ALUs, four 8-bit video ALUs, and 132K bytes of on-chip memory, they operate at up to 600 MHz. Peripherals, depending on model, include: host DMA port; USB 2.0 Hi-Speed On-The-Go; 10/100 Ethernet MAC; two-wire interface (TWI) controller; dual-channel, full-duplex synchronous serial ports that support 16 channels of I2S stereo audio; UARTs; SPI port; general-purpose timers; watchdog timer; real-time clock; parallel peripheral interface (PPI), supporting ITU-R 656 video formats; and general-purpose I/Os. C-suffix devices add a low-power, high-quality, 24-bit, 96-kHz stereo audio codec with integrated headphone driver. Designed for portable MP3 players and voice recorders, the codec includes stereo line-level inputs, a mono microphone-level input with bias voltage for an electret-type microphone, a mute function, and a programmable volume control. Dynamic power management allows continuous adjustment of the operating voltage and frequency, optimizing power consumption vs. performance for real-time applications. All Blackfin processors are supported by the VisualDSP++ software-development environment and the EZ-KIT Lite evaluation system. The 600-MHz ADSP-BF52x processors operate on a 0.95-V to 1.26-V core supply and 1.8-V, 2.5-V, and 3.3-V I/O supplies. Specified from 0°C to +70°C (K-grade) or –40°C to +85°C (B-grade), they are available in 12-mm × 12-mm, 289-ball mBGA and 17-mm × 17-mm, 208-ball mBGA packages and are priced from $13.46 in 1000s.

December 2008

Blackfin Embedded Processor

The ADSP-BF54x Blackfin® embedded processor family, optimized for automotive and multimedia applications, combines the multimedia signal-processing power of a single-instruction, multiple-data (SIMD) DSP with the control capabilities of a RISC microcontroller. With two 16-bit MACs, two 40-bit ALUs, four 8-bit video ALUs, and up to 324K bytes of on-chip memory, the core clock operates at up to 600 MHz. The feature-rich peripheral set includes: NAND flash, DDR1, and 1.8-V LP DDR1 controllers; ATAPI; SDIO controller; 2-wire interface (TWI) controller; controller area network (CAN) 2.0B interface; enhanced parallel peripheral interface (ePPI) supporting ITU-R 656 video formats; LCD controller w/ overlay manager; and dual-channel, full-duplex synchronous serial ports that support 16 channels of I2S stereo audio. Dynamic power management allows continuous adjustment of the operating voltage and frequency, optimizing power consumption vs. performance for real-time applications. All Blackfin processors are supported by the VisualDSP++® software-development environment and the EZ-KIT Lite® evaluation system. Available in 17-mm × 17-mm, 400-ball CSP-BGA packages, the ADSP-BF54x products are specified over commercial and industrial temperature ranges. 1K unit pricing begins at $15.66.

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Interface

November 2009

16-Mbps full-duplex ESD-protected RS-485 Transceiver

adm1490eThe ADM1490E ESD-protected RS-485 transceiver enables full-duplex communication on multipoint bus transmission lines at data rates up to 16 Mbps. Designed for balanced transmission in motor control applications, it complies with ANSI/TIA/EIA-485-A-1998 standards. The line pins are protected against electrostatic-discharge (ESD) events as large as ±8 kV. The device provides short-circuit protection, thermal shutdown, and fail-safe operation—which sets the outputs high when the inputs are floating. Operating on a single 5-V supply, the ADM1490E consumes 1.2 mA. Available in 8-lead SOIC and MSOP packages, it is specified from –40°C to +85°C and priced from $1.15 in 1000s.

September 2009

Bidirectional Digital Isolator handles full- and low-speed USB signals

The ADuM4160 iCoupler® digital isolator combines high-speed CMOS and micro-transformers to provide bidirectional isolation for full-speed (12 Mbps) and low-speed (1.5 Mbps) USB ports. Directly inserted in the D+/D– lines, it determines data direction on a packet-by-packet basis. A robust device, it provides short-circuit protection, 5-kV rms isolation, 25-kV/μs common-mode transient immunity, enhanced system-level ESD performance, and IEC 60601 medical certification. The propagation delay is comparable to that of a standard hub and cable. Each side operates on a 3.1-V to 5.5-V supply, allowing direct connection to the bus. A fully isolated, powered USB interface can be implemented by adding an ADuM5000 isolated dc-to-dc converter. Available in a 16-lead SOIC package, the ADuM4160 is specified from –40°C to +105°C and priced at $4.89 in 1000s.

August 2009

Quad high-speed LVDS Line Receiver

The ADN4666 line receiver uses low-voltage differential signaling (LVDS) to achieve data rates of over 400 Mbps (200 MHz)—with 100-ps differential skew and 3.3-ns propagation delay. It accepts the ±350-mV differential input signals produced by an ADN4665 line driver—or similar LVDS device—and converts them into 3-V single-ended TTL/CMOS-compatible output signals. Active-high enable and disable inputs control all four receivers, switching the outputs to a high-impedance state when disabled. The receiver input pins are protected against ±15-kV ESD events. Operating on a single 3-V to 3.6-V supply, an ADN4666 with no load consumes 10 mA when enabled and 3 mA when disabled. Available in 16-lead SOIC and TSSOP packages, it is specified from –40°C to +85°C and priced at $1.16 in 1000s.

2-channel Digital Isolator provides enhanced ESD protection

The ADuM3211 digital isolator provides enhanced system-level ESD protection relative to IEC 61000-4 (ESD/burst/surge) testing as compared to the ADuM1201. Using patented iCoupler® technology, it provides superior performance at lower cost than optocouplers, while eliminating the uncertain current-transfer ratios, nonlinear transfer functions, and drift (with time and temperature) associated with optocouplers. Power consumption is as much as 90% lower, and no external drivers or discrete devices are required. The isolation channels have safety- and regulatory approvals from UL. Featuring 3-ns pulse-width distortion, 3-ns channel-to-channel matching, 2500-V rms isolation, and greater than 25-kV/μs common-mode transient immunity, it can operate at data rates from dc to 10 Mbps. The power supplies on each side can range from 2.7 V to 5.5 V, allowing level translation across the isolation barrier. Available in 8-lead SOIC packages, B and T grades are respectively specified from –40°C to 105ºC and –40°C to 125ºC and priced at $1.35 and $2.04 in 1000s.

July 2009

Four-channel Digital Isolators integrate 500-mW dc-to-dc converter

The ADuM640x use patented iCoupler® technology—which combines high-speed CMOS with integrated micro-transformers—to integrate a four-channel digital isolator with a dc-to-dc converter, thus providing a complete isolation solution in a tiny package. With 5-kV rms isolation rating and pending IEC 60601-1 medical certification, it is designed for medical applications. iCoupler isolators are smaller than discrete solutions using optocouplers and external dc-to-dc converters; and their implementation ease reduces design time. Featuring 40-/6-ns pulse-width distortion, A-/C-grades support data rates from dc to 1/25 Mbps. The isoPower® dc-to-dc converter provides up to 500 mW of regulated, isolated power. The regulated dc-to-dc converter outputs—3.3 V or 5 V with a 5-V input supply, or 3.3 V with a 3.3-V input supply—feature 1-mV/V line regulation, 1% load regulation, and 34% efficiency down to 20% of full load. Available in 16-lead SOIC packages, the ADuM640x are specified from –40°C to +105°C and priced at $6.33/$7.71 in 1000s. Five channel configurations are available, as shown in the following table.

Model

Primary-to-Secondary Communication Channels

Secondary-to-Primary Communication Channels

ADuM6400

4

0

ADuM6401

3

1

ADuM6402

2

2

ADuM6403

1

3

ADuM6404

0

4

Quad LVDS Line Drivers

The ADN4665 four-channel line driver uses low-voltage differential signaling (LVDS) to achieve data rates of over 400 Mbps (200 MHz)—with 400-ps max differential skew and 2-ns max propagation delay. Compatible with TTL and CMOS input signals, they provide ±3.5-mA differential current outputs for driving twisted-pair cables or differential traces on PCBs. The transmitted signal, which develops ±350 mV across a termination resistor, can be converted back to TTL or CMOS logic levels by an LVDS line receiver. The output pins are protected against ±15-kV ESD events. Operating on a single 3-V to 3.6-V supply, the ADN4665 consumes 23 mA when loaded, 5 mA with no load, and 2.6 mA when disabled. Available in 16-lead SOIC and TSSOP packages, it is specified from –40°C to +85°C and priced at $1.16 in 1000s.

June 2009

Four-channel Digital Isolators provide reinforced isolation up to 5-kV

The ADuM4400/ADuM4401/ADuM4402 four-channel digital isolators provide superior performance and lower cost than optocouplers. Using patented iCoupler® technology, they combine high-speed CMOS with integrated micro-transformers, eliminating the uncertain current-transfer ratios, nonlinear transfer functions, and drift (with time and temperature) associated with optocouplers. Power consumption is as much as 90% less, and no external drivers or discrete devices are required. Providing 5-kV reinforced isolation, they meet the safety- and regulatory requirements of UL, CSA, and VDE, including IEC 60601-1 approval for medical isolation. Featuring 2-ns pulse-width distortion, 2-ns channel-to-channel mismatch, and 25-kV/μs common-mode transient immunity, A-, B-, and C-grades operate at data rates from dc to 1 Mbps, 10 Mbps, and 90 Mbps, respectively. The power supplies on each side can range from 2.7 V to 5.5 V, allowing level-translation across the isolation barrier. Refresh circuitry ensures correct output data levels in the absence of input transitions—and during power-up and power-down conditions. The ADuM4400 has four channels that communicate in the same direction; the ADuM4401 has one channel that communicates in one direction and three that communicate in the reverse direction; and the ADuM4402 has two channels that communicate in one direction and two that communicate in the reverse direction. Available in 16-lead SOIC packages, they are specified from –40°C to +105°C and priced from $2.39 in 1000s.

March 2009

Single and dual high-speed LVDS Line Drivers

The single ADN4661 and dual ADN4663 line drivers use low-voltage differential signaling (LVDS) to achieve data rates of over 600 Mbps (300 MHz). Their flow-through pinout simplifies PCB layouts and allows separation between inputs and outputs. Compatible with TTL and CMOS input logic, they provide ±3.1-mA differential current outputs for driving twisted-pair cables. The transmitted signal develops ±355 mV across a termination resistor. This differential voltage can be converted to a TTL or CMOS logic level by the ADN4662 or ADN4664 line receiver. The output pins are protected against ±15-kV ESD events. Operating on a single 3-V to 3.6-V supply, the ADN4661/63 consume 4/8 mA with no load, and 7/10 mA when loaded. Available in 8-lead SOIC packages, they are specified from –40°C to +85°C and priced at $0.68/$0.80 in 1000s.

Single and dual high-speed LVDS Line Receivers

The single ADN4662 and dual ADN4664 line receivers use low-voltage differential signaling (LVDS) to achieve data rates of over 400 Mbps (200 MHz). Their flow-through pinout simplifies PCB layouts and allows separation between inputs and outputs. They accept the ±310-mV differential input signals produced by the ADN4661 or ADN4663 line driver—or similar LVDS device—and convert them into 3-V single-ended TTL/CMOS-compatible output signals. The input pins are protected against ±15-kV ESD events. Operating on a single 3-V to 3.6-V supply, the ADN4662/64 consume 5.4 mA with no load. Available in 8-lead SOIC packages, they are specified from –40°C to +85°C and priced at $0.68/$0.80 in 1000s.

February 2009

16-Mbps full-duplex ESD-protected RS-485 Transceiver

The ADM1491E ESD-protected RS-485 transceiver enables full-duplex communication on multipoint bus transmission lines at data rates up to 16 Mbps. Designed for balanced transmission in motor control applications, it complies with ANSI/TIA/EIA-485-A-1998 standards. The line pins are protected against electrostatic-discharge (ESD) events as large as ±8 kV. The device provides short-circuit protection, thermal shutdown, and fail-safe operation—which sets the outputs high when the inputs are floating. As many as 32 devices can share a single bus. Operating on a single 5-V supply, the ADM1491E consumes 1.2 mA with outputs enabled, and 0.8 mA with outputs disabled. Available in 10-lead MSOP and 14-lead SOIC packages, it is specified from –40°C to +85°C and priced from $1.15 in 1000s.

December 2008

Two-channel Digital Isolators integrate 500-mW dc-to-dc converter

The ADuM520x two-channel digital isolators integrate a 500-mW isoPower® dc-to-dc converter, offering a complete isolation solution in a tiny package. Providing an isolated power supply and superior performance to optocouplers, they use patented iCoupler® technology, which combines high-speed CMOS with integrated micro-transformers. This technology eliminates the uncertain current-transfer ratios, nonlinear transfer functions, and drift (with time and temperature) associated with optocouplers. Power consumption is up to 90% lower, and no external drivers or discrete devices are required. Featuring 40-ns pulse-width distortion and 25-kV/μs common-mode transient immunity, they can handle data rates from dc to 1/25 Mbps (A-/C-grades). Three channel configurations are available. The regulated dc-to-dc converter outputs—3.3 V or 5 V with a 5-V input supply, or 3.3 V with a 3.3-V input—feature 1-mV/V line regulation, 1% load regulation, and 35% efficiency down to 20% of full load. The 2500 Vrms isolation has safety- and regulatory approvals of UL, CSA, and VDE pending. Available in 16-lead SOIC packages, they are specified from –40°C to +105°C and priced at $4.09/$4.66 in 1000s.

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Power and Thermal Management

November 2009

Ultra-low-noise, low-dropout Linear Regulator drives 150-mA loads

adp150The ADP150 low-dropout regulator is available in a variety of fixed-output-voltage options from 1.8 V to 3.3 V—with ±1% accuracy at 25°C and +1.5/–2.5% accuracy over line, load, and temperature. It specifies 105-mV dropout voltage at 150 mA, 9-μV rms noise (independent of Vout), and 70-dB power-supply rejection at 10 kHz, making it ideal for high-performance analog and RF applications. Its robust design features short-circuit protection, under-voltage lockout, and thermal-overload protection. Stable with tiny 1-μF ceramic input and output capacitors, no additional noise-reduction capacitors are required. Operating on a single 2.2-V to 5.5-V supply, the ADP150 draws 220 μA at full load, 10 μA with no load, and 200 nA in shutdown mode. Available in 4-bump WLCSP and 5-lead TSOT packages, it is specified from –40°C to +125°C and priced at $0.31 in 1000s.

Dual Low-Dropout Regulator provides 200 mA outputs

adp5030The ADP5030 dual low-dropout regulator provides 200 mA output currents at 1.2-V and 2.8-V. Its low-resistance high-side load switch can handle up to 500 mA. Level-shifting logic translates logic levels to/from anywhere in the 1.2-V to 3.6-V range, facilitating the interface between the system’s processor and its peripherals. The device specifies 0.7% initial accuracy, 175-mV dropout voltage with 200-mA loads, 27-μV/50-μV rms noise on 1.2-V/2.8-V outputs, and 76-dB/60-dB power-supply rejection at 1 kHz/100 kHz. It provides overcurrent and thermal protection and is stable with small ceramic output capacitors. Operating on a 2.5-V to 5.5-V supply, the ADP5030 consumes 220 μA max ground current with both regulators enabled and 2 μA max in shutdown mode. Available in a 16-ball WLFCSP package, it is specified from –40°C to +125°C and priced at $0.85 in 1000s.

October 2009

Dual-output synchronous step-down DC-to-DC Controller

adp1877The ADP1877 dual-output buck controller drives four external N-channel MOSFETS to generate two independent outputs in the 0.6-V to 0.9Vin range—with ±0.85% accuracy and greater than 20-A maximum current per channel. The two PWM outputs provided by the Flexmode® architecture are phase shifted by 180°, minimizing the input ripple current and the required input capacitance. The on-chip oscillator is programmable over the 200-kHz to 1.5-MHz range; and the switching frequency can be synchronized to an external clock. The robust design includes soft start, current limiting, undervoltage lockout, overvoltage protection, and thermal protection. Tracking inputs allow coincidental or ratiometric tracking of a master supply; and Power Good outputs signal that the outputs are on and stable. Operating on a 2.75-V to 14.5-V supply, the ADP1877 consumes 4.5 mA in normal mode and 100 μA in shutdown mode. Available in a 32-lead LFCSP package, it is specified from –40°C to +125°C and priced at $1.88 in 1000s.

Four-channel, ±0.8% accurate Voltage Supervisor for positive/negative supplies

adm12914The ADM12914 four-channel voltage supervisor monitors four power supplies and provides an active-low, open-drain alert signal when any of them experiences an under- or over-voltage condition. The voltage-sense thresholds are accurate to ±0.8% over the extended industrial temperature range. Two of the four inputs monitor positive supplies; the other two inputs can be independently configured to monitor either positive or negative supplies. The fault outputs are immune to power-supply glitches; and an adjustable delay allows the supplies to stabilize after all faults have cleared. An input-supply shunt regulator enables the device to operate from higher-voltage supplies. Two different versions are available: the -1 option includes a latch function, while the -2 includes a disable function. Operating on a single 2.3-V to 6.8-V supply, the ADM12914 consumes 62 μA. Specified from –40°C to +125°C, it is available in a 16-lead QSOP package and priced at $4.99 in 1000s.

September 2009

 Step-down DC-to-DC Converter provides two 2-A outputs or single 4-A output

The ADP2114 high-efficiency step-down dc-to-dc converter is available in six fixed-output options, from 0.8 V to 3.3 V, and an adjustable-output option that can be set as low as 0.6 V. Featuring 1.5% output accuracy and 95% efficiency, it can be configured to deliver a pair of independent 2-A outputs, 1-A and 3-A outputs, or a single, interleaved 4-A output with reduced output ripple. The switching frequency—which can be set to 300 kHz, 600 kHz, or 1.2 MHz—can be synchronized to an external clock to minimize system noise—and optimized gate slew rate reduces EMI emissions. The robust design features programmable soft-start time, short-circuit- and thermal-overload protection, and under-voltage lockout. Operating on a single 2.7-V to 5.5-V supply, the ADP2114 consumes 3.4 mA with dual independent outputs, 3 mA with a single output, and 1 µA in shutdown mode. Available in a 32-lead LFCSP package, it is specified from –40°C to +125°C and priced at $2.50 in 1000s.

 Step-down DC-to-DC Converter provides single 3-A output

The ADP2118 high-efficiency step-down dc-to-dc converter is available in six fixed-output options from 1.0 V to 3.3 V, and an adjustable-output option that can be set as low as 0.6 V. Featuring 1.5% accuracy and 95% efficiency, it delivers up to 3-A continuous output current—using pulse-width modulation for best stability and transient response and pulse-frequency modulation to save power at light loads. The switching frequency—which can be set to 600 kHz or 1.2 MHz—can be synchronized to an external clock to minimize system noise. The robust design features integrated soft start; over-voltage-, over-current-, and thermal-overload protection; and under-voltage lockout. Operating on a single 2.3-V to 5.5-V supply, the ADP2118 consumes 680 µA when switching, 100 µA when static, and 0.3 µA in shutdown mode. Available in a 16-lead LFCSP package, it is specified from –40°C to +125°C and priced at $1.90 in 1000s.

High-speed, dual 4-A MOSFET Drivers provide thermal protection

The ADP3623/ADP3624/ADP3625 and ADP3633/ADP3634/ADP3635 dual high-speed, high-current MOSFET drivers provide independent drive signals for two external N-channel MOSFETs used in ac-to-dc- and isolated dc-to-dc power supplies, motor controllers, and line-driver applications. An internal temperature sensor provides two levels of thermal protection: an active-low open-drain warning at 135°C and shutdown at 165°C. A shutdown input allows the device to be disabled on command, by an over-voltage condition, or by the over-temperature warning. The drivers feature 10-ns rise/fall times and 14-/22-ns propagation delays. Under-voltage lockout ensures safe startup and shutdown. The ADP3623/33 have two inverting drivers; the ADP3624/34 have two non-inverting drivers; and the ADP3625/35 have one inverting driver and one non-inverting driver. Operating with a 4.5-V to 18-V supply, the ADP3623/24/25 have a 4.2-V under-voltage threshold with 0.3-V hysteresis; operating with a 9.5-V to 18-V supply; the ADP3633/34/35 have an 8.7-V under-voltage threshold with 1-V hysteresis. Specified from –40°C to +125°C, the drivers are available in 8-lead thermally enhanced SOIC and mini-SOIC packages—and are priced from $0.88 in 1000s.

July 2009

Four-channel Voltage Supervisor indicates OV/UV on positive/negative supplies

The ADM2914 four-channel voltage supervisor monitors four power supplies and provides an active-low, open-drain alert signal when any of them experiences an under- or over-voltage condition. Two of the four inputs monitor positive supplies; the other two inputs can be independently configured to monitor either positive or negative supplies. The fault outputs are immune to power supply glitches; and an adjustable delay allows the supplies to stabilize after all faults have cleared. An input-supply shunt regulator enables the device to be run off of higher-voltage supplies. Two different versions are available: the -1 includes a latch function, while the -2 includes a disable function. Operating on a single 2.3-V to 6-V supply, the ADM2914 consumes 62 μA. Specified from –40°C to +125°C, it is available in a 16-lead QSOP package and priced at $3.99 in 1000s.

Quad Voltage Supervisor monitors positive and negative supplies

The ADM6339 microprocessor supervisor monitors four system-supply voltages, and asserts an active-low, open-drain reset output if any supply falls below its threshold (for positive voltages) or above its threshold (for negative voltages). The reset output stays low for 200 ms after all four voltages return to normal. Seventeen versions are available, with various combinations of fixed (–5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, 5 V) and adjustable thresholds. Operating on a single 1.0-V to 5.5-V supply, the ADM6339 consumes 55 μA. Available in a 6-lead SOT-23 package, it is specified from –40°C to +85°C and priced at $1.79 in 1000s.

Dual flash LED Driver provides high power, high efficiency, and small size

The ADP1655 high-efficiency driver provides two high-power outputs—up to 400 mA in flash mode and 160 mA in torch mode—to drive the white LEDs used in high-resolution camera phones, digital still cameras, and camcorders. Its 88% efficiency maximizes battery life, while improving picture quality in low-light environments. Timers, currents, and status readback are programmed via the I2C-compatible interface. The robust design incorporates multiple safety features, including soft start, flash timeout, current limiting, over-temperature protection, and over-voltage protection. Operating with a single 2.75 V to 5.5-V supply, the ADP1655 consumes 5.3 mA. Available in a 12-lead WLCSP package, it is specified from –40°C to +125°C and priced at $0.95 in 1000s.

June 2009

Digital Controller for isolated power supplies

The ADP1043 secondary-side controller for switch-mode power supplies integrates all of the functions required to control isolated ac-to-dc or dc-to-dc converters, including: current-, voltage-, and temperature sensing; loop-filter compensation, PWM generation, current sharing, housekeeping, I2C interface, calibration, and trimming. Its minimal requirement for external components maximizes flexibility and minimizes design time. Its robust design includes current limiting, under-voltage lockout, and over-voltage protection. The on-chip EEPROM is used for programming the loop filter, PWM timing, inrush current, soft start timing, and sequencing. A graphical user interface eases filter design and configuration. Operating on a single 3.3-V supply, the ADP1043 consumes 20 mA. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and priced at $4.50 in 1000s.

Step-up DC-to-DC Switching Converters operate at 650/1300 kHz

The ADP1612 and ADP1613 step-up converters are capable of supplying over 150 mA at voltages as high as 20 V, while respectively operating with a single 1.8-V to 5.5-V and 2.5-V to 5.5-V supply. Integrating a 1.4-/2.0-A, 0.13-ohm power switch with a current-mode, pulse-width modulated regulator, their output varies less than 1% with changes in input voltage, load current, and temperature. The operating frequency is pin-selectable and can be optimized for high efficiency or minimum external component size: At 650 kHz they provide 90% efficiency; at 1.3 MHz their circuit implementation occupies the smallest space, making them ideal for space-constrained environments in portable devices and liquid-crystal displays. The adjustable soft-start circuit prevents inrush currents, ensuring safe, predictable start-up conditions. The ADP1612/13 consume 2.2 mA in the switching state, 700 μA in the non-switching state, and 10 nA in shutdown mode. Available in 8-lead MSOP packages, they are specified from –40°C to 85°C and priced at $1.50/$1.20 in 1000s.

Step-down DC-to-DC Converter provides 600 mA output at 95% efficiency

The ADP2109 high-efficiency step-down dc-to-dc converter is available in four fixed-output options—1.0 V, 1.2 V, 1.5 V, and 1.8 V—with 2% output accuracy. It uses high-speed, constant-frequency, current-mode pulse-width-modulation (PWM) control to provide high stability and fast transient response, reducing the switching frequency to improve efficiency under light-load conditions. Requiring only three passive external components, it can provide 600-mA output current at up to 95% efficiency. Its robust design features a fixed 550-µs soft-start time, short-circuit- and thermal-overload protection, and under-voltage lockout. An internal switch automatically discharges the output capacitor when the device is disabled or shut down due to an under-voltage- or thermal-overload condition. Operating with a single 2.3-V to 5.5-V supply, the ADP2109 consumes 18 µA with no load and 0.2 μA in shutdown mode. Available in a 5-ball WLCSP package, it is specified from –40°C to +125°C and priced at $0.80 in 1000s.

Synchronous, step-down DC-to-DC Converter provides 600 mA output

The ADP2121 step-down dc-to-dc converter has a fixed 1.82-V output. It uses 6-MHz constant-frequency pulse-width-modulation (PWM) to provide high stability and fast transient response, switching to pulse-frequency modulation (PFM) to improve efficiency under light-load conditions. Requiring only three passive external components, it can provide 600-mA output current at up to 92% efficiency. Its robust design features 275-µs soft-start time, short-circuit- and thermal-overload protection, and under-voltage lockout. Operating with a single 2.3-V to 5.5-V supply, the ADP2121 consumes 36 µA with no load and 0.3 μA in shutdown mode. Available in a 6-ball WLCSP package, it is specified from –40°C to +125°C and priced at $0.80 in 1000s.

Power Management Unit for imaging modules

The ADP5020 power management unit—which comprises two step-down dc-to-dc converters, four power MOSFETS, a low-dropout regulator, and a power sequence controller—provides all of the power circuits required for a digital imaging module. Its high level of integration and reduced number of required external components make feasible a small, simple, low-cost, high-performance system. The three output voltages are digitally programmable: 2.5 V to 3.7 V at 600 mA; 1.1 V to 1.8 V at 250 mA; and 1.8 V to 3.3 V at 150 mA. The device can be activated via the I2C interface or a dedicated pin. The input is disconnected from the output during shutdown, reducing the input current to 1 μA. Under-voltage lockout prevents deep battery discharge, and soft-start prevents input current overshoot at startup. Operating with a single 2.4-V to 5.5-V supply, the ADP5020 consumes 10 mA in switching mode and 1 μA in standby mode. Available in a 20-lead LFCSP package, it is specified from –40°C to +125°C and priced at $1.50 in 1000s.

7-channel smart LED Driver includes charge pump, I2C interface

The ADP8860 smart LED driver—which combines a programmable charge-pump driver with automatic phototransistor control—changes current density according to ambient light conditions, eliminating the need for a processor and allowing significant power savings in mobile displays. As many as six LEDs can be independently driven at up to 30 mA; a seventh LED can be driven at up to 60 mA. Light intensity thresholds, min/max LED current, and fade in/out times are all programmable via the I2C interface. The two-capacitor charge-pump can source 240 mA. Automatic gain selection of 1×, 1.5×, or 2× maximizes its efficiency. Safety features include soft start, under-voltage lockout, and short-circuit-, over-voltage-, and over-temperature protection. Operating with a single 2.5-V to 5.5-V supply, the ADP8860 consumes 4.5 mA in switching mode and 0.3 μA in standby mode. Available in 20-lead LFCSP and 20-ball WLCSP packages, it is specified from –40°C to +85°C and priced from $1.36 in 1000s.

March 2009

Low-Dropout Regulators drive loads of up to 300 A

The fixed-output ADP170 and adjustable-output ADP171 low-dropout regulators are available in a range of fixed- and adjustable-output options from 0.8 V to 3.0 V, making them an ideal clean power device for low-voltage analog-to-digital converters. With accuracy to within ±1% initially and ±3% over line, load, and temperature, they achieve fast transient response, 300-mA load-current capability, 66-mV dropout voltage, and 70-dB power-supply rejection at 10 kHz. Their robust design features a fixed 120-µs soft-start time, short-circuit protection, and thermal-overload protection. Operating on a single 1.6-V to 3.6-V supply, the ADP170/71 draw 170 μA at full load, 23 μA with no load, and 100 nA in shutdown mode. Available in 5-lead TSOT packages, they are specified from –40°C to +125°C and priced at $0.33 in 1000s.

High-Side Power Switch is controlled by logic-level signal

The ADP190 high-side power switch disconnects unused loads from a power supply to extend battery life in mobile phones, digital cameras, and audio devices. The P-channel MOSFET switching element can handle continuous currents of up to 500 mA; its 105-milliohm on-resistance minimizes power loss. The on-chip level shifter ensures logic compatibility with modern processors and controllers. Operating on a single 1.2-V to 3.6-V supply, the ADP190 draws 2 μA of ground current when enabled, and 100 nA of supply current in shutdown mode. Available in a compact 4-ball 0.8-mm x 0.8-mm WLCSP package, it is specified from –40°C to +85°C and priced at $0.50 in 1000s.

February 2009

Dual 12-V MOSFET Driver has high-side bootstrap, output disable

The ADP3650 dual high-voltage MOSFET driver is optimized for driving the two external N-channel MOSFETs used in a synchronous buck converter. A single PWM signal generates both FET drives, providing non-overlapping drive signals and preventing shoot-through current. An output disable input prevents rapid discharge during system shutdown. Featuring 45-ns propagation delay and 25-ns transition time, both drivers can handle 3000-pF loads. In addition, the high-side driver can be bootstrapped to a floating supply to accommodate high slew rates. Operating with a 4.15-V to 13.2-V power supply, plus a 4-V to 26-V boost supply, the ADP3650 draws 2 mA. Specified from 0°C to +85°C, it is available in 8-lead LFCSP and SOIC packages and priced from $0.62 in 1000s.

Keypad I/O Expander

The ADP5588 port expander and keypad controller provides keypad scanning, debouncing and I/O generation, resulting in simplified routing, reduced processor involvement, and lower power consumption. Offloading key-scan and GPIO functions from the CPU, it enables the processor to control up to 18 data lines—which can be configured as an 8 x 10 keypad matrix, general-purpose I/Os, or light sensor inputs—via an I2C-compatible bus. Storing key presses and releases, and flagging them to the processor, the controller manages all mobile key scanning and decoding functions. This enables portable devices with QWERTY keypads to use three control lines instead of 18, reducing cost and improving reliability. A key-event counter allows the device to manage up to ten unprocessed key events, while the key-lock capability can trigger an interrupt when the lock sequence is activated. Two inputs can be configured for ambient light detection, ensuring efficient control of keypad backlighting. Operating on a 1.7-V to 3.0-V power supply, the ADP5588 draws 100 μA. Specified from –40°C to +85°C, it is available in a 24-lead LFCSP package and priced from $1.20 in 1000s.

January 2009

Compact dual Low-Dropout Regulators drive loads up to 200 mA

The ADP220/ADP221 high-efficiency low-dropout regulators are available in multiple fixed-output-voltage options from 0.8 V to 3.3 V. With accuracy to within ±1% initially and ±2% over line, load, and temperature, they achieve fast transient response, 200-mA load-current capability, 150-mV dropout voltage, and 76-dB power-supply rejection. Their robust design features short-circuit and thermal-overload protection. The ADP221 includes an active pull-down to quickly discharge output loads. Operating on a single 2.5-V to 5.5-V supply, the ADP220/221 draw 60 μA with no load, 120 μA at full load, and 100 nA in shutdown mode. Available in 6-ball, 0.8-mm × 0.8-mm WLCSP packages, they are specified from –40°C to +125°C and priced at $0.58 in 1000s.

Fixed-output Low-Dropout Regulators drive loads up to 0.8/1.2/2.0 A

The ADP1752/ADP1754/ADP1740 low-dropout regulators are available in multiple fixed-output-voltage options from 0.75 V to 2.5 V. Their specifications include ±1% initial accuracy, ±2% accuracy over line, load, and temperature; 0.8/1.2/2.0-A load-current capability, 10-mV dropout voltage with a 100-mA load, 70-/105-/160-mV dropout voltage at full load, and 65-dB power-supply rejection. Their robust design features short-circuit protection, current limiting, reverse current protection, thermal-overload protection, programmable soft-start timing, and fast transient response. Cleaning up the signal from switching regulators, these parts are ideal for powering mixed-signal loads. Operating on a single 1.6-V to 3.6-V supply, the ADP1752/54/40 draw 90 μA with a 500-μA load, 0.9/1.1/1.5 mA at full load, and 2 μA in shutdown mode. Available in 16-lead LFCSP packages, they are specified from –40°C to +125°C and priced at $0.90/$0.95/$1.20 in 1000s.

Adjustable-output Low-Dropout Regulators drive loads up to 0.8/1.2/2.0 A

The ADP1753/ADP1755/ADP1741 low-dropout regulators use an external divider to set their output voltage from 0.75 V to 3.0 V. Their specifications include ±1% initial accuracy, ±2% accuracy over line, load, and temperature; 0.8/1.2/2.0-A load-current capability, 10-mV dropout voltage with a 100-mA load, 70-/105-/160-mV dropout voltage at full load, and 65-dB power-supply rejection. Their robust design features short-circuit protection, current limiting, reverse current protection, thermal-overload protection, programmable soft-start timing, and fast transient response. Cleaning up the signal from switching regulators, these parts are ideal for powering mixed-signal loads. Operating on a single 1.6-V to 3.6-V supply, the ADP1753/55/41 draw 90 μA with a 500-μA load, 0.9/1.1/1.5 mA at full load, and 2 μA in shutdown mode. Available in 16-lead LFCSP packages, they are specified from –40°C to +125°C and priced at $0.90/$0.95/$1.20 in 1000s.

High-efficiency buck/boost DC-to-DC Converters drive loads up to 600/1000 mA

The ADP2503 and ADP2504 high-efficiency step-up/step-down DC-to-DC converters are available in multiple fixed-output options from 2.8 V to 5.0 V with 2% initial accuracy. They use high-speed, constant-frequency, current-mode pulse-width-modulation (PWM) control to provide high stability and fast transient response; an optional pulse-skipping mode improves efficiency under light-load conditions. Their robust design features a fixed 200-µs soft-start time, short-circuit protection, thermal-overload protection, and under-voltage lockout. Requiring only three passive external components, the ADP2503/04 provide output currents up to 600/1000 mA. Operating on a single 2.3-V to 5.5-V supply, they draw 38 μA with no load and 0.2 μA in shutdown mode. Available in 10-lead, 3-mm × 3-mm LFCSP packages, they are specified from –40°C to +85°C and priced at $1.30/$1.40 in 1000s.

December 2008

Low-Dropout Regulator drives loads of up to 100-mA

The ADP120 high-efficiency low-dropout regulator is available in multiple fixed-output-voltage options from 1.2 V to 3.3 V. With accuracy to within ±1% initially and ±3% over line, load, and temperature, it achieves fast transient response, 100-mA load-current capability, 60-mV dropout voltage, and 73-dB power-supply rejection. Its robust design features short-circuit and thermal-overload protection. Operating on a single 2.3-V to 5.5-V supply, the ADP120 draws 11 μA with no load, 22 μA at full load, and 100 A in shutdown mode. Available in a 5-lead TSOT-23 package, it is specified from –40°C to +125°C and priced at $0.26 in 1000s.

Step-down DC-to-DC Converter provides 600 mA output at 95% efficiency

The ADP2108 high-efficiency step-down dc-to-dc converter is available in 11 fixed-output options—from 1.0 V to 3.3 V—with 2% output accuracy. It uses high-speed, constant-frequency, current-mode pulse-width-modulation (PWM) control to provide high stability and fast transient response, switching to pulse-frequency modulation (PFM) to improve efficiency under light-load conditions. Requiring only three passive external components, it can provide 600-mA output current with up to 95% efficiency. Its robust design features a fixed 550-µs soft-start time, short-circuit- and thermal-overload protection, and under-voltage lockout. Operating with a single 2.3-V to 5.5-V supply, the ADP2108 consumes 18 µA with no load and 0.2-μA shutdown mode. Available in a 5-ball WLCSP package, it is specified from –40°C to +125°C and priced at $0.80 in 1000s.

Programmable Backlight Driver with ambient-light-sensor input

The ADP5501 LED backlight driver controls a mobile handset’s backlight intensity, on/off timing, dimming, and fading without intervention from the main processor. Adjusting the backlight intensity based upon the ambient light level, it minimizes power consumption and extends battery life. Its I2C-compatible interface and single-line interrupt reduces the number of lines required to connect to the baseband processor across the flexible cable. It can drive up to six white LEDs, with 128 programmable current levels up to 30 mA for the backlight—as well as three auxiliary LEDs, with 64 programmable current levels up to 14 mA. Operating on a single 2.7-V to 5.5-V supply, the ADP5501 consumes 25 µA in standby mode and 0.1 µA in shutdown mode. Available in a 24-lead LFCSP package, it is specified from –40°C to +125°C and priced at $0.88 in 1000s.

Isolated DC-to-DC Converter

The ADuM5000 isoPower® isolated dc-to-dc converter uses patented iCoupler® technology, which combines high-speed CMOS with integrated micro-transformers to provide up to 500 mW of isolated, regulated power in a small form-factor. The regulated outputs—3.3 V or 5 V with a 5-V input supply, or 3.3 V with a 3.3-V input—feature 1-mV/V line regulation, 1% load regulation, and 35% efficiency down to 20% of full load. The 2500 Vrms isolation, which has safety- and regulatory approvals of UL, CSA, and VDE pending, provides 25-kV/μs common-mode transient immunity. The ADuM5000 can be combined with the ADuM520x and ADuM540x isolators to achieve higher output power.  Available in a 16-lead SOIC package, it is specified from –40°C to +105°C and priced at $3.16 in 1000s.

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RF, IF, Broadband, and Wireless

November 2009

10-output Clock Generator for Ethernet applications

ad9571The AD9571 multi-output clock generator uses a high-performance, low-jitter, integer-N PLL with preset output- and feedback divider ratios to provide one 33.33-MHz CMOS output, six 25-MHz CMOS outputs, one 156.25-MHz LVPECL or LVDS output, and two 100-MHz or 125-MHz LVPECL or LVDS outputs—all based on a single 25-MHz crystal or reference clock. No external components are required for the loop filters, saving space, cost, and design time. Operating on a single 3.0 to 3.6-V supply, the AD9571 dissipates 690 mW with LVPECL outputs and 480 mW with LVDS outputs. Specified from –40°C to +85°C, it is available in a 40-lead LFCSP package and priced at $6.81 in 1000s.

RF/IF Gain Blocks offer highest dynamic range up to 4 GHz

adl5602The ADL5601 and ADL5602 RF/IF gain blocks feature extremely low noise and distortion, allowing them to provide the highest dynamic range available from internally matched gain blocks that operate over the 50-MHz to 4-GHz range. The ADL5601 provides 15-dB gain, 43-dBm third-order intercept (OIP3), and 3.7-dB noise figure (NF) at 900 MHz, while drawing only 83 mA. The ADL5602 provides 20-dB gain, 42-dBm OIP3, and 3.3-dB NF at 2 GHz, while drawing only 89 mA. The amplifiers are internally matched to 50 ohms; and integrated active bias circuitry minimizes the need for external components. Available in 3-lead SOT-89 packages, they are specified from –40°C to +85°C and priced at $1.75 in 1000s.

September 2009

Network Clock Generator/Synchronizer accepts up to four reference inputs

The AD9547 clock-generator/synchronizer derives a low-jitter output clock that is synchronous to one of two differential—or four single-ended—input references. The digital phase-locked loop reduces jitter and phase noise, and holdover circuitry maintains the clock frequency, even in situations where all references have failed. Working with input references from 1 kHz to 750 MHz, the device can provide output frequencies up to 450 MHz, making it ideal for SONET/SDH synchronous optical networks up to OC-192. Operating on 1.8-V and 3.3-V supplies, the AD9547 dissipates 900 mW with all circuits running and 13 mW in power-down mode. Specified from –40°C to +85°C, it is available in a 64-lead LFCSP package and priced at $13.97 in 1000s.

Clock Generator converts low-frequency input to high-frequency output

The AD9552 clock generator accepts an input reference between 6.6 MHz and 125 MHz and provides an output clock at up to 900 MHz—replacing high-frequency crystal oscillators and resonators in SONET/SDH, Fibre Channel, 10-Gigabit Ethernet, high-definition video, and wireless infrastructure applications. Its fractional-N phase-locked loop uses a sigma-delta modulator to reduce jitter to less than 0.5 ps rms. The pin-programmable device provides one of 64 standard output frequencies based on eight common input frequencies—or custom frequency ratios via the 3-wire SPI-compatible interface. Operating on a single 3.3-V supply, the AD9552 consumes 149 mA at 900 MHz with both channels active. Specified from –40°C to +85°C, it is available in a 32-lead LFCSP package and priced at $7.65 in 1000s.

7-output Clock Generator for Fibre Channel/Ethernet applications

The AD9572 multi-output clock generator uses high-performance, low-jitter, integer-N PLLs with fixed output- and feedback divider ratios to provide 25-MHz and 33-MHz CMOS outputs—and one 156.25-MHz, two 106.25-MHz, and two 100-MHz or 125-MHz LVPECL or LVDS outputs. No external components are required for the loop filters, saving space, cost, and design time. Operating on a single 3.0 to 3.6-V supply, the AD9572 dissipates 1075 mW with LVPECL outputs and 715 mW with LVDS outputs. Specified from –40°C to +85°C, it is available in a 40-lead LFCSP package and priced at $6.89 in 1000s.

2-output Clock Generator for PCI-Express applications

The AD9573 two-output clock generator uses high-performance, low-jitter, integer-N PLLs with fixed output- and feedback divider ratios to provide a 100-MHz LVDS output and a 33.33-MHz LVCMOS output. No external components are required for the loop filters, saving space, cost, and design time. Operating on a single 3.0 to 3.6-V supply, the AD9573 dissipates 235 mW. Specified from –40°C to +85°C, it is available in a 10-lead TSSOP package and priced at $6.75 in 1000s.

SiGe Clock Fanout Buffer selects between two inputs, provides eight outputs

The ADCLK948 clock buffer, designed for high-speed, low-jitter applications provides eight LVPECL output clocks from one of two selectable differential input clocks. Fabricated on an advanced complementary-bipolar silicon-germanium (SiGe) process, it operates at up to 4.8-GHz, with 210-ps propagation delay, 75-ps rise/fall times, and 75-fs random jitter. The inputs, which include 100-ohm termination resistors, accept LVPECL, CML, CMOS, and LVDS signals. The output drivers, compatible with ECL or LVPECL levels, provide 1.6-V differential signals into 50-ohm loads. Operating on a single 2.97-V to 3.63-V supply, the ADCLK948 consumes 288 mA from the positive supply and 96 mA from the negative supply. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.50 in 1000s.

SiGe Clock Fanout Buffer selects between two inputs, provides ten outputs

The ADCLK950 clock buffer, designed for high-speed, low-jitter applications provides ten LVPECL output clocks from one of two selectable differential input clocks. Fabricated on an advanced complementary-bipolar silicon-germanium (SiGe) process, it operates at up to 4.8-GHz, with 210-ps propagation delay, 75-ps rise/fall times, and 75-fs random jitter. The inputs, which include 100-ohm termination resistors, accept LVPECL, CML, CMOS, and LVDS signals. The output drivers, compatible with ECL or LVPECL levels, provide 1.6-V differential signals into 50-ohm loads. Operating on a single 2.97-V to 3.63-V supply, the ADCLK950 consumes 346 mA from the positive supply and 106 mA from the negative supply. Available in a 40-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.58 in 1000s.

500-MHz to 1700-MHz Balanced Mixer includes LO buffer, IF amplifier, RF balun

The ADL5357 balanced mixer combines RF inputs in the 500-MHz to 1700-MHz range with a local oscillator (LO) to produce IF outputs in the 30-MHz to 450-MHz range. A highly linear doubly balanced passive mixer core, integrated RF and LO balancing circuitry, and an on-chip RF balun using high-side LO injection allow single-ended operation. A high-linearity IF buffer amp follows the mixer core. The balanced design achieves low leakage, low intermodulation distortion, and high input linearity, ideal properties for cellular base stations. Operating on a single 3.0-V to 5.5-V supply, the ADL5357 consumes 100 mA in normal mode and 150 µA in power-down mode. Available in a 20-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.98 in 1000s.

400-MHz to 6-GHz Quadrature Demodulator

The ADL5380 broadband quadrature demodulator accepts a fully differential IF/RF input in the 400-MHz to 6.0-GHz range and a local oscillator (LO)—and provides fully differential buffered I and Q baseband outputs. Its 10.9-dB noise figure (NF) at 900 MHz, 11.6-dBm input compression point (P1dB), and 30-dBm input third-order intercept (IP3) provide the dynamic range required for direct-conversion architectures; and its 0.07-dB quadrature amplitude balance and 0.2° phase balance ensure excellent demodulation accuracy. Operating on a single 4.75-V to 5.25-V supply, the ADL5280 consumes 245 mA when enabled and 145 mA when disabled. Available in a 24-lead LFCSP package, it is specified from –40°C to +85°C and priced at $5.28 in 1000s.

Dual-loop Laser-Diode Driver operates from 50 Mbps to 3.3 Gbps

The ADN2872 laser-diode driver supports single-rate data transmission from 50 Mbps to 3.3 Gbps or multi-rate operation from 155 Mbps to 3.3 Gbps. The dual-loop control of average power and extinction ratio automatically compensates for variations in laser characteristics over time and temperature. Average power and extinction ratio can be set with DACs, trim resistors, or digital potentiometers. The device provides bias- and modulation current monitoring, as well as laser-fail and automatic laser-shutdown (ALS) alarms. Fully compliant with the Small Form Factor Pluggable (SFF/SFP) Multisource Agreement (MSA) and SFF-8472 digital diagnostics specifications, it features a bias-current range of 2 mA to 100 mA and a modulation-current range of 5 mA to 90 mA. It interfaces easily with an ADuC7019 or ADuC702x MicroConverter and an ADN289x limiting amplifier to implement a complete optical transceiver. Operating on a single 3.0-V to 3.6-V supply, the ADN2872 consumes only 30 mA. Available in a 24-lead LFCSP package, it is specified from –40°C to +85°C and priced at $4.78 in 1000s.

August 2009

Low-power Clock Fanout Buffer provides up to 6 LVDS or 12 CMOS outputs

The ADCLK846 clock buffer, designed for low-power, low-jitter applications, provides up to 6 LVDS or 12 CMOS outputs. The LVDS outputs operate at up to 1.2 GHz, with 2-ns propagation delay, 135-ps rise/fall times, and 150-fs broadband random jitter; the CMOS outputs operate at up to 250 MHz, with 3.2-ns propagation delay, 525-ps rise/fall times, and 100-fs broadband random jitter. The six output drivers are divided into banks of two and four; a separate control line configures each bank for LVDS or CMOS compatibility. The inputs accept LVPECL, LVDS, HSTL, CML, and CMOS signals. Operating on a single 1.8-V supply, the ADCLK846 consumes 155 mA at full speed with CMOS outputs, 110 mA with LVDS outputs, and 3 mA in sleep mode. Available in a 24-lead LFCSP package, it is specified from –40°C to +85°C and priced at $4.75 in 1000s.

1200-MHz to 2500-MHz Balanced Mixer includes LO buffer, IF amplifier, RF balun

The ADL5355 balanced mixer mixes RF inputs in the 1200-MHz to 2500-MHz range with a local oscillator (LO) to produce IF outputs in the 30-MHz to 450-MHz range. A highly linear doubly balanced passive mixer core, integrated RF and LO balancing circuitry, and an on-chip RF balun using low-side LO injection allow single-ended operation. With its low leakage, low intermodulation distortion, and high input linearity, achieved through balanced design, it is ideal for cellular base stations. A high-linearity IF buffer amp follows the mixer core. Device specifications include 8.4-dB conversion gain, 9.2-dB single-sideband noise figure, 27-dBm input third-order intercept (IP3), and 10.4-dBm input compression point (P1dB). Operating on a single 3.0-V to 5.5-V supply, the ADL5355 consumes 190 mA at 5 V, 125 mA at 3.3 V, and 150 μA in power-down mode. Available in a 20-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.98 in 1000s.

June 2009

RMS Power Detector provides 50-dB dynamic range from 50 Hz to 6 GHz

The AD8363 TruPwr™ rms-responding power detector measures RF signal power over the 50-Hz to 6-GHz frequency range—and provides a dc output voltage proportional to the logarithm of the rms value of the input voltage, with 1-V/decade (50-mV/dB) scaling and 50-dB dynamic range. It has a useful controller mode, where an applied voltage establishes the power level required at the input to null the deviation from the setpoint. Maintaining rms accuracy with both simple- and complex waveforms, it is particularly useful for handling the high-crest-factor waveforms found in WiMAX, CDMA, and W-CDMA systems. Operating with a single 4.5-V to 5.5-V supply, the AD8363 consumes 60 mA when enabled and 300 μA in power-down mode. Available in a 16-lead LFCSP package, it is specified from –40°C to +125°C and priced from $5.31 in 1000s.

Network Clock Generator/Synchronizer accepts up to eight reference inputs

The AD9548 eight-input clock-generator/synchronizer derives a low-jitter output clock that is synchronous to one of four differential, or eight single-ended, input references. The digital phase-locked loop reduces jitter and phase noise, and holdover circuitry maintains the clock frequency, even in situations where all references have failed. References as low as 1-pps (pulses per second) can be used, enabling designers to synchronize their systems to a generic GPS reference input. The device can provide output frequencies up to 750 MHz, making it ideal for SONET/SDH synchronous optical networks up to OC-192. Operating on 1.8-V and 3.3-V supplies, the AD9548 dissipates 900 mW with all circuits running and 13 mW in power-down mode. Specified from –40°C to +85°C, it is available in an 88-lead LFCSP package and priced at $24.82 in 1000s.

Multiservice Clock Generator

The AD9551 clock generator accepts one or two reference input signals and generates one or two output signals that are harmonically related to the inputs by a factor of 1 to 63. Precisely translating the reference frequency to the desired output frequency, its input receivers and output drivers enable either single-ended or differential operation. It replaces as many as five oscillators previously required to support forward error correction (FEC), holdover, switchover, and precise frequency generation in multi-service network switches, routers, and line cards. On-chip reference monitoring and switchover circuitry synchronizes the two references to prevent phase perturbations at the output in the event of a reference failure. The device accepts input clocks between 19.44 MHz and 806 MHz, and provides output clocks between 10 MHz and 900 MHz. It is compatible with LVPECL, LVDS, and CMOS logic levels. Operating on a single 3.3-V supply, the AD9551 consumes 169 mA. Specified from –40°C to +85°C, it is available in a 40-lead LFCSP package and priced at $14.75 in 1000s.

Low-power Clock Fanout Buffer provides up to 12 LVDS or 24 CMOS outputs

The ADCLK854 clock buffer, designed for low-power, low-jitter applications, selects between two inputs and provides up to 12 LVDS or 24 CMOS outputs. The LVDS outputs operate at up to 1.2 GHz, with 2-ns propagation delay, 135-ps rise/fall times, and 150-fs random jitter; the CMOS outputs operate at up to 250 MHz, with 3.2-ns propagation delay, 525-ps rise/fall times, and 100-fs random jitter. Three control lines configure the three banks of output drivers for LVDS or CMOS compatibility. The inputs accept LVPECL, LVDS, HSTL, CML, and CMOS signals. Operating on a single 1.8-V supply, the ADCLK854 consumes 115 mA with CMOS outputs, 84 mA with LVDS outputs, and 3 mA in sleep mode. Available in a 48-lead LFCSP package, it is specified from –40°C to +85°C and priced at $5.95 in 1000s.

SiGe Clock Fanout Buffer provides six LVPECL outputs

The ADCLK946 clock buffer, designed for high-speed, low-jitter applications provides six LVPECL output clocks from a single input clock. Fabricated on an advanced complementary-bipolar silicon-germanium (SiGe) process, it operates at up to 4.8-GHz, with 185-ps propagation delay, 75-ps rise/fall times, and 75-fs random jitter. The input, which includes 100-ohm center-tapped termination resistors, accepts LVPECL, CML, CMOS, and LVDS signals. The output drivers, compatible with ECL or LVPECL levels, provide 1.6-V differential signals into 50-ohm loads. Operating on a 3.3-V supply, the ADCLK946 consumes 90 mA from the positive supply and 245 mA from the negative supply. Available in a 24-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.25 in 1000s.

May 2009

Ultrafast SiGe Clock Buffer selects between two inputs, provides 12 outputs

The ADCLK954 clock buffer, designed for high-speed, low-jitter applications, selects between two inputs and provides 12 outputs. Fabricated on an advanced complementary-bipolar silicon-germanium (SiGe) process, it operates at up to 4.8-GHz, with 210-ps propagation delay, 75-ps rise/fall times, and 75-fs random jitter. The inputs, which include 100-ohm center-tapped termination resistors, accept LVPECL, CML, CMOS, and LVDS signals. The output drivers, compatible with ECL or LVPECL levels, provide 1.6-V differential signals into 50-ohm loads. Operating on a 3.3-V supply, the ADCLK954 consumes 420 mA from the positive supply and 140 mA from the negative supply. Available in a 40-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.95 in 1000s.

March 2009

Quadrature Modulator, log detector, and VVA operates from 50 MHz to 2200 MHz

The ADL5386 broadband quadrature modulator, accepting two differential baseband inputs and a local oscillator, provides a modulated IF/RF output in the 50-MHz to 2.2-GHz range. The highly integrated device also includes a logarithmic power detector and a voltage-variable attenuator. The 700-MHz input bandwidth, 11-dBm output compression (P1dB), and –160-dBm/Hz noise floor make it ideal for broadband wireless access systems, microwave radio links, cable modem termination systems, and cellular infrastructure equipment. Operating on a single 4.75-V to 5.25-V supply, the ADL5386 consumes 230 mA when enabled and 2.2 mA in sleep mode. Available in a 40-lead LFCSP package, it is specified from –40°C to +85°C and priced at $5.29 in 1000s.

11.3-Gbps Differential Laser Diode Driver has active back termination

The ADN2526 laser-diode driver supports data transmission at up to 11.3 Gbps. Providing 10 mA to 100 mA bias- and 10 mA to 80 mA differential modulation currents, it directly modulates packaged laser diodes having a differential resistance ranging from 5 ohms to 50 ohms. The active back termination absorbs signal reflections from the transmission line, enabling excellent optical eye quality even with poorly terminated lines. Flexible voltage control allows the implementation of average-optical-power and extinction-ratio-control schemes. Automatic laser shutdown allows bias- and modulation currents to be shut down when required. Fully compliant with Small Form Factor Pluggable (SFP+) Multisource Agreement (MSA) specifications, the device enables compact modules with enhanced ESD protection. Operating on a single 3-V to 3.6-V supply, the ADN2526 consumes 46 mA. Available in a 16-lead LFCSP package, it is specified from –40°C to +85°C and priced at $21.14 in 1000s.

Multirate Clock- and Data Recovery IC with deserializer

The ADN2855 burst-mode clock- and data-recovery IC is designed for optical line terminal receivers. Operating rates of 155.52 Mbps, 622.08 Mbps, 1244.16 Mbps, or 1250.00 Mbps are selected via the I2C interface. Frequency lock and data alignment occur within 12 bits of the start of the preamble. The output clock can be full rate or half rate for a double-data-rate interface to an FPGA or ASIC. The recovered data output is available via a 4-bit parallel LVDS interface. Operating on a single 3-V to 3.6-V supply, the ADN2855 consumes 250 mA with the deserializer operating, or 204 mA in serial-output mode. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and priced at $22.04 in 1000s.

January 2009

Dual VDSL/VDSL2 Line Driver with shutdown

The AD8398A comprises two high-speed voltage-feedback operational amplifiers. Their 450-mA peak output current, 85-MHz bandwidth, fast slew rate, and 18.4-V p-p differential output swing make the device an ideal line driver for ADSL2+, VDSL2, and power line communications (PLC) applications. Four operating modes are supported: full power, medium power, low power, and complete power down, allowing power and performance to be tailored to the application. Operating on a single 12-V supply, the AD8398A consumes only 0.7 mA in power-down mode. Specified from –40°C to +85°C, it is available in a 16-lead thermally-enhanced LFCSP package and priced at $1.40 in 1000s.

Wideband PLL Synthesizer with integrated VCO

The ADF4350 combines a wideband PLL synthesizer and a voltage-controlled oscillator (VCO). Using integer- or fraction-N modes, the fundamental output frequency can range from 2200 MHz to 4400 MHz. Auxiliary divide-by-1/2/4/8/16 circuits allow generation of RF output frequencies as low as 137.5 MHz. The RF output can be muted via hardware or software. An auxiliary RF output can be powered down when not in use. The typical rms jitter is 0.5-ps. The ADF4350 operates on a 3.0-V to 3.6-V supply and is compatible with 1.8-V logic. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and priced at $10.30 in 1000s.

450-MHz to 6000-MHz Crest-Factor Detector

The ADL5502 crest-factor detector combines a true-rms power detector and an envelope detector to accurately determine the crest factor (peak/rms ratio) of a modulated signal in the 450-MHz to 6000-MHz range. It is ideal for measuring high-crest-factor signals, such as those found in CDMA2000, W-CDMA, and QPSK-/QAM-based OFDM waveforms. The rms detector has a linear conversion gain of 1.8 V/Vrms and exhibits virtually zero error even when measuring signals with crest factors as large as 11 dB. The envelope detector has a conversion gain of 1.2 V/V and can be toggled between real-time envelope and peak-hold measurements. Operating with a 2.5-V to 3.3-V supply, the ADL5502 consumes 3 mA in normal mode and 1 μA when disabled. Available in an 8-ball WLCSP package, it is specified from –40°C to +85°C and priced at $5.97 in 1000s.

December 2008

Clock Generator has 12 LVDS/24 CMOS outputs

The AD9522-x clock generator derives up to 12 low-voltage, differential signaling (LVDS) or 24 CMOS clocks from a single reference frequency. Integrating a complete PLL with VCO, programmable dividers, and configurable output buffers, it performs with sub-picosecond jitter. Five (-x) versions are available, with on-chip VCO center-frequencies ranging from 1.4 GHz to 2.95 GHz. Alternatively, an external VCO can be used at frequencies up to 2.4 GHz. Onboard EEPROM allows users to program their own unique start up conditions so that no field programming is required. Accepting one differential- or two single-ended references, at frequencies up to 250 MHz, the devices provide four groups of three LVDS clocks at frequencies up to 800 MHz. Programmable dividers, with a divide ratio of 1 to 32, set the output frequency and the coarse delay for each group. Any of the LVDS outputs can be reconfigured as two 250-MHz CMOS outputs. Operating on a single 3.3-V supply, the AD9522-x consume 1.3 W max; separate output-driver and charge-pump supplies can be used for logic compatibility and to support VCOs having an extended tuning range. Available in 64-lead LFCSP packages, they are specified from –40°C to +85°C and priced at $12.65 in 1000s.

1-MHz to 4-GHz Logarithmic Detector/Controller has 80-dB dynamic range

The ADL5513 demodulating logarithmic amplifier can accurately convert an RF input signal into a temperature-stable dc output voltage proportional to the logarithm of the RF input voltage. Operating in the 1-MHz-to-4-GHz frequency range, the device has 80-dB dynamic range. Used in detector or controller modes, it can be configured to measure RF power or to provide a control voltage to a power amplifier. The logarithmic slope is 21 mV/dB, and the intercept is –88 dBm. Operating on a single 2.7-V to 5.5-V supply, the ADL5513 consumes 31 mA when operating and less than 0.2 mA when disabled. Available in a 16-lead LFCSP package, it is specified from –40°C to +125°C and priced at $5.56 in 1000s.

400-MHz to 4000-MHz Low-Noise Amplifiers

The ADL5521/ADL5523 high-performance GaAs pHEMT low-noise amplifiers (LNA) provide 20.8-/21.5-dB gain over the 400-MHz to 4000-MHz frequency band. Used in single-down-conversion-IF-sampling- and direct-conversion receivers, they feature 21.8-/21.0-dBm input compression point (P1dB), 37.0-/34.0-dBm output third-order intercept (OIP3), 0.8-dB noise figure (NF), and matched 50-ohm inputs and outputs. The ADL5521/23 consume 30 mA when operating on a 3-V supply and 60 mA when operating on a 5-V supply. Available in 8-lead LFCSP packages, they are specified from –40°C to +85°C and priced at $2.18 in 1000s.

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Switches and Multiplexers

September 2009

Xstream™ 6.5-Gbps dual-lane 2:1 Multiplexer/Demultiplexer

The AD8155 asynchronous, protocol-agnostic, dual-lane 2:1 switch provides a total of six differential current-mode logic (CML) inputs and six differential CML outputs arranged as a 2:1 multiplexer and a 2:1 demultiplexer. Supporting NRZ signaling at up to 6.5 Gbps, each lane offers loss-of-signal detection, and programmable receive equalization, output pre-emphasis, and output levels. The demultiplexing path implements unicast or bicast capability, allowing the part to support 1+1 or 1:1 redundancy. The device features low latency, very low channel-to-channel skew, on-chip 50-ohm termination resistors, and P/N pair inversion for routing flexibility. Operating with 1.8-V and 3.3-V supplies, the AD8155 consumes 2 W. Available in a 64-lead LFCSP package, it is specified from –40°C to +85°C and priced at $16.95 in 1000s.

8-channel CMOS Multiplexer features 4.5-ohm on resistance

The ADG1608 analog multiplexer switches one of eight inputs to a common output, as determined by three address lines. It features 4.5-ohm on resistance, 0.12-ohm channel-to-channel match, and 1-ohm variation over a ±4.5-V signal range, ideal characteristics for data acquisition and gain-switching applications that require low distortion. Dynamic specifications include 24-pC charge injection, 150-/178-ns switching speed, and 40-MHz bandwidth. Fully specified at each of ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1608 consumes less than 0.01 μW. Available in 16-lead LFCSP and TSSOP packages, it is specified from –40°C to +125°C and priced at $1.98 in 1000s.

4-channel differential CMOS Multiplexer features 4.5-ohm on resistance

The ADG1609 analog multiplexer switches one of four differential inputs to a common differential output, as determined by two address lines. It features 4.5-ohm on resistance, 0.12-ohm channel-to-channel match, and 1-ohm variation over a ±4.5-V signal range, ideal characteristics for data acquisition and gain-switching applications that require low distortion. Dynamic specifications include 24-pC charge injection, 150-/178-ns (ton/toff) switching speed, and 71-MHz bandwidth. Fully specified at each of ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1608 consumes less than 0.01 μW. Available in 16-lead LFCSP and TSSOP packages, it is specified from –40°C to +125°C and priced at $1.98 in 1000s.

Triple CMOS SPDT Switch features 4.5-ohm on resistance

The ADG1633 triple SPDT switch features 4.5-ohm on resistance, 0.12-ohm channel-to-channel match, and 1-ohm variation over a ±4.5-V signal range, ideal characteristics for data-acquisition and gain-switching applications that require low distortion. Dynamic specifications include 12.5-pC charge injection, 88-/232-ns (ton/toff) switching speed, and 103-MHz bandwidth. Fully specified at each of ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1633 consumes less than 0.01 μW. Available in 16-lead LFCSP and TSSOP packages, it is specified from –40°C to +125°C and priced at $1.72 in 1000s.

Quad CMOS SPDT Switch features 4.5-ohm on resistance

The ADG1634 quad SPDT switch features 4.5-ohm on resistance, 0.12-ohm channel-to-channel match, and 1-ohm variation over a ±4.5-V signal range, ideal characteristics for data-acquisition and gain-switching applications that require low distortion. Dynamic specifications include 12.5-pC charge injection, 88-/232-ns (ton/toff) switching speed, and 103-MHz bandwidth. Fully specified at each of ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1634 consumes less than 0.01 μW. Available in 20-lead LFCSP and TSSOP packages, it is specified from –40°C to +125°C and priced at $2.35 in 1000s.

April 2009

4:1 iCMOS Multiplexer features 1-ohm on resistance

The ADG1604 analog multiplexer switches one of four inputs to a common output, as determined by three address lines. Fabricated on ADI’s industrial CMOS (iCMOS™) process, it features 1-ohm on resistance, 0.04-ohm channel-to-channel match, and 0.2-ohm variation over a ±4.5-V signal range, making it ideal for data acquisition and gain-switching applications that require low distortion. Dynamic specifications include 140-pC charge injection, 200-ns switching speed, and 15-MHz bandwidth. Fully specified with ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1604 consumes less than 0.01 μW. Available in 16-lead LFCSP and 14-lead TSSOP packages, it is specified from –40°C to +125°C and priced at $1.83 in 1000s.

Quad SPST iCMOS Switches feature 1-ohm on resistance

The ADG1611, ADG1612, and ADG1613 quad SPST switches are designed on ADI’s industrial CMOS (iCMOS™) process, which combines high-voltage CMOS and bipolar technologies. Featuring 1-ohm on-resistance, 0.04-ohm channel-to-channel match, and 0.2-ohm variation over a ±4.5-V signal range, they are ideal for data-acquisition and gain-switching applications that require low distortion. Their low power dissipation makes them a good choice for battery-powered equipment. Dynamic specifications include 140-pC charge injection, 200-ns switching speed, and 42-MHz bandwidth. Fully specified with ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1611/12/13 consume 0.01 μW. Available in 16-lead LFCSP and TSSOP packages, they are specified from –40°C to +125°C and priced at $1.75 in 1000s.

Dual iCMOS SPDT Switch features 1-ohm on resistance

The ADG1636 dual SPDT switch is fabricated on ADI’s industrial CMOS (iCMOS™) process, which combines high-voltage CMOS- and bipolar technologies. Featuring 1-ohm on resistance, 0.04-ohm channel-to-channel match, and 0.2-ohm variation over a ±4.5-V signal range, it is ideal for data-acquisition and gain-switching applications that require low distortion. Dynamic specifications include 130-pC charge injection, 200-ns switching speed, and 25-MHz bandwidth. Fully specified with ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1636 consumes less than 0.01 μW. Available in 16-lead LFCSP and TSSOP packages, it is specified from –40°C to +125°C and priced at $1.83 in 1000s.

December 2008

iCMOS SPST Switch features 1.6-ohm on resistance

The ADG1517 SPST switch is designed on ADI’s industrial CMOS (iCMOS™) process, which combines high-voltage CMOS and bipolar technologies. Featuring 1.6-ohm on-resistance with 0.4-ohm variation over a 0-to-10-V signal range, it is ideal for data-acquisition, gain-switching, and audio/video signal-routing applications that require low distortion. The low power dissipation makes it a good choice for battery-powered equipment. Dynamic specifications include 70-pC charge injection, 135-ns switching speed, and 65-MHz bandwidth. Fully specified a single 15-V supply, the ADG1517 consumes 1 μA max. Available in an 8-lead LFCSP package, it is specified from –40°C to +125°C and priced at $1.44 in 1000s.

300-MHz, 32 × 32 Analog Crosspoint Switches

The ADV3200/ADV3201 analog crosspoint switches consist of 1024 switches arranged in a 32 × 32 array. Providing gains of +1/+2, the switches feature 300-MHz bandwidth, 400-V/μs slew rate, 6-ns settling time, –80-dB isolation, 0.06/0.1% differential gain error, 0.06/0.03° differential phase error, and 0.1-dB flatness to 60 MHz, making them ideal for routing high-speed RGB and component-video signals. The 32 independent output buffers can be put into a high-impedance state, allowing outputs to be paralleled and minimizing bus loading. The ADV3200 operates with a single 5-V or dual ±2.5-V supplies; the ADV3201 operates with a single 5-V or dual ±3.3-V supplies. They consume 250 mA with all outputs enabled and 120 mA with all outputs disabled. Available in 176-lead LQFP packages, they are specified from –40°C to +85°C and priced at $120.00 in 100s.

300-MHz, 32 × 16 Analog Crosspoint Switches

The ADV3202/ADV3203 analog crosspoint switches consist of 512 switches arranged in a 32 × 16 array. Providing gains of +1/+2, the switches feature 300-MHz bandwidth, 400-V/μs slew rate, 6-ns settling time, –80-dB isolation, 0.06/0.1% differential gain error, 0.06/0.03° differential phase error, and 0.1-dB flatness to 60 MHz, making them ideal for routing high-speed RGB and component-video signals. The 16 independent output buffers can be put into a high-impedance state, allowing outputs to be paralleled and minimizing bus loading. The ADV3202 operates with a single 5-V or dual ±2.5-V supplies; the ADV3203 operates with a single 5-V or dual ±3.3-V supplies. They consume 250 mA with all outputs enabled and 120 mA with all outputs disabled. Available in 176-lead LQFP packages, they are specified from –40°C to +85°C and priced at $65.00 in 100s.

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