|
|
|
| Home Analog Devices Feedback Subscribe Archives 简体中文 日本語 | |
|
|
|
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. Accelerometers, Gyros, and Temperature Sensors February 2013 16-bit Digital Temperature Sensors are accurate to ±0.25°C The ADT7320 and ADT7420 high-accuracy digital temperature sensors include a band-gap reference, a temperature sensor, and a 16-bit ADC, enabling them to measure the ambient temperature with up to 0.0078°C resolution. The sensors offer stable and reliable temperature measurement, with ±0.0072°C drift and ±0.015°C repeatability. Fully integrated, they do not require extra signal processing, characterization, or calibration. Two open-drain warning outputs, which can operate in comparator or interrupt mode, become active when the temperature exceeds a programmable critical temperature limit or falls outside of a programmable window. Data and commands are communicated using an SPI-compatible interface on the ADT7320; and an I2C-compatible interface on the ADT7420. Operating on a single 2.7-V to 5.5-V supply, the ADT7320/7420 draw 210 μA in normal mode, 46 µA at 1 SPS, and 2 μA in shutdown mode. Available in 16-lead LFCSP packages, they are specified from –40°C to +150°C and priced at $3.10 in 1000s. December 2012 Angular Rate Sensor provides ±14000°/s dynamic range
The
ADIS16266 digital gyroscope provides a digital
output proportional to the angular rate about the
Z-axis (yaw) for rates up to
±14000°/s minimum. A 12-bit ADC digitizes voltages from: a MEMS gyroscope,
an internal temperature sensor, the power-supply, and an auxiliary input,
and provides the data via an SPI-compatible interface. An auxiliary 12-bit
DAC provides a 0-to-2.5-V output. The device starts up within 170 ms after
initial power up—or 2.5 ms when recovering from sleep mode—and automatically
begins sampling the sensor without requiring intervention from a system
processor. Programmable filter length and sampling rate enable noise and
bandwidth to be tailored to the application. Typical specifications include
4.17°/s/LSB sensitivity, 0.44°/s/√Hz
noise density, 0.5°/s/g linear acceleration effect, 360-Hz bandwidth,
and 2429-sps sampling rate; with sensitivity and bias fully calibrated over
the Precision Inertial Sensor features six degrees of freedom The ADIS16445 complete “six-degrees-of-freedom” inertial sensing system combines a 3-axis gyroscope—with selectable ±62.5/±125/±250°/s dynamic range and 0.05° max axis-to-axis alignment error; and a 3-axis accelerometer—with ±5-g minimum range; plus a local temperature sensor and a 12-bit ADC. The device is fully calibrated for sensitivity, bias, axial alignment, and linear acceleration over the –40°C to +70°C temperature range. Key specifications include 12°/hr gyro bias stability, and 75 micro-g accelerometer bias stability. 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 3.15-V to 3.45-V supply, the ADIS16445 draws 74 mA. Specified from –40°C to +85°C, it is available in a 24-mm × 38-mm × 11-mm module, with a 20-pin connector, and is priced at $3.95.00 in 1000s. 3-axis, ±2-/±4-/±8-/±16-g digital MEMS Accelerometer operates with 1.8-V supply The ADXL344 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 0.02%/°C temperature stability. The output data rate, from 0.1 Hz to 3200 Hz, can be selected to suit the application. Special built-in motion-detection functions—including activity, inactivity, single-tap, double-tap, and free-fall—can be individually mapped to either of two interrupt-output pins. A 32-level FIFO minimizes host-processor intervention and lowers system power consumption. Data is available via SPI- or I2C-compatible serial interfaces. The device can survive 10,000-g shocks, enabling its use in harsh environments. Operating on a single 1.7‑V to 2.75-V supply, the ADXL344 draws 140 μA at 100 Hz, 30 μA at 10 Hz, and 0.2 µA in standby mode. Available in a 16-terminal LGA package, it is specified from –40°C to +85°C and priced at $1.15 in 1000s. High-performance digital-output Angular Rate Sensor The ADXRS810 digital gyroscope uses an advanced, differential, quad-sensor design that ignores linear acceleration, making it ideal for automotive navigation and other applications that operate in exceedingly harsh environments where shock and vibration are present. Capable of sensing an angular rate of up to ±300°/s, it presents data as a 16-bit word embedded in a 32-bit SPI message. The continuous self-test architecture checks the integrity of the electromechanical system by applying a high-frequency electrostatic force to the sense structure to generate a rate signal that can be distinguished from the baseband rate data and internally analyzed. Operating on a single 3.15‑V to 5.25-V supply, the ADXRS810 draws 6 mA. Available in a 16-lead SOIC package, it is specified from –40°C to +105°C and priced at $17.66 in 1000s. November 2012 High-performance 3-axis, ±1-/±2-/±4-/±8-g digital MEMS Accelerometer The ADXL350 high-performance, digital-output, 3-axis accelerometer measures dynamic acceleration (motion, shock, and vibration) and static acceleration (tilt and gravity) over a user-selectable ±1-/±2-/±4-/±8-g range, with 10-/11-/12-/13-bit max resolution, 0.5% nonlinearity, and 0.01%/°C temperature stability. The output data rate, from 6.25 Hz to 3200 Hz, can be selected to suit the application. Special built-in motion-detection functions—including activity, inactivity, single-tap, double-tap, and free-fall—can be individually mapped to either of two interrupt-output pins. A 32-level FIFO minimizes host-processor intervention and lowers system power consumption. Data is available via SPI- or I2C-compatible serial interfaces. The device can survive 10,000-g shocks, enabling its use in harsh environments. Operating on a single 2.0-V to 3.6-V supply, the ADXL350 draws 166 μA at 100 Hz, 45 μA at 10 Hz, and 0.1 µA in standby mode. Available in a 16-terminal LGA package, it is specified from –40°C to +85°C and priced at $4.59 in 1000s. Low-power, 3-axis, ±200-g MEMS Accelerometer in small, low-profile package The ADXL377 low-power 3-axis analog-output accelerometer with signal-conditioned analog outputs measures dynamic acceleration from motion, shock, or vibration over a ±200-g range, with 0.5% nonlinearity and 0.02%/°C temperature stability. External capacitors set the measurement bandwidth to suit the application, from 0.5 Hz to 1300 Hz for X- and Y- axes, and from 0.5 Hz to 1000 Hz for the Z-axis. Operating on a single 1.8-V to 3.6-V supply, the ADXL377 draws 300 μA. Available in a 16-lead LFCSP package, it is specified from –40°C to +85°C and priced at $4.79 in 1000s. September 2012 Precision Inertial Sensor features ten degrees of freedom
The
ADIS16448 complete “10-degrees-of-freedom”
inertial sensing system combines a 3-axis gyroscope—with selectable
±250/±500/±1000°/s dynamic range and 0.05° max axis-to-axis alignment error;
a 3-axis accelerometer—with ±18-g range; a 3-axis
magnetometer—with ±1.9-gauss range; and a barometer—with 10‑mbar
to 1100-mbar range; plus a local temperature sensor and a 12-bit ADC. The
device is fully calibrated for sensitivity, bias, axial alignment, and
linear acceleration over the Low-power 3-axis, ±2-/±4-/±8-/±16-g digital MEMS Accelerometer The ADXL343 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. The output data rate, from 0.1 Hz to 3200 Hz, can be selected to suit the application. Special built-in motion-detection functions—including activity, inactivity, single-tap, double-tap, and free-fall—can be individually mapped to either of two interrupt-output pins. A 32-level FIFO minimizes host-processor intervention and lowers system power consumption. Data is available via SPI- or I2C-compatible serial interfaces. The device can survive 10,000-g shocks, enabling its use in harsh environments. Operating on a single 2.0‑V to 3.6-V supply, the ADXL343 draws 140 μA at 100 Hz, 30 μA at 10 Hz, and 0.1 µA in standby mode. Available in a 14-terminal LGA package, it is specified from –40°C to +85°C and priced at $1.15 in 1000s. Micropower 3-axis, ±2-/±4-/±8-g digital MEMS Accelerometer
The
ADXL362 micropower, 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-g range, with 12-bit resolution, 0.5% nonlinearity, and
0.05%/°C temperature stability. The output data rate, from 12.5 Hz to 400
Hz, can be selected to suit the application. Special built-in
motion-detection functions—including activity, inactivity, and free-fall—can
be individually mapped to either of two interrupt-output pins; and an AWAKE
bit can switch power of an external system. A 512-level FIFO minimizes
host-processor interaction and lowers system power consumption. Data is
available via an SPI-compatible serial interface. An on-chip temperature
sensor can monitor the internal temperature and/or reduce temperature
sensitivity via calibration. The ADXL362 operates on a single 1.6-V to 3.5-V
supply; at 2.0-V, it draws 13 μA in ultralow-noise mode, 3.3 µA in
low-noise mode, 1.8 µA in normal mode, 0.27 µA in wake-up
mode, and 0.01 µA in standby mode. Available in a July 2012 Inertial Sensor features ten degrees of freedom, dynamic orientation outputs The ADIS16480 complete “10-degrees-of-freedom” inertial sensing system combines a 3-axis gyroscope—with ±450°/s dynamic range; a 3-axis accelerometer—with ±10-g range; a 3-axis magnetometer—with ±2.5-gauss range; and a barometer—with 300‑mbar to 1100-mbar range; plus a local temperature sensor and a 12-bit ADC. An embedded Extended Adaptive Kalman filter enables dynamic orientation sensing, providing roll, pitch, and yaw outputs in addition to the calibrated sensor outputs. The device is fully calibrated for sensitivity, bias, axial alignment, and linear acceleration over the –40°C to +70°C 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 3.0-V to 3.6-V supply, the ADIS16480 draws 254 mA in normal mode, 12.2 mA in sleep mode, and 45 µA in power-down mode. Available in a 47-mm × 44-mm × 14-mm module with a 24-pin connector, it is specified from –40°C to +85°C and priced at $1545.00 in 1000s. June 2012 Tactical-grade Inertial Sensor features six degrees of freedom
The
ADIS16485 complete “six-degrees-of-freedom”
iSensor® inertial sensing system
combines a 3-axis gyroscope—with ±450°/s dynamic range; a 3-axis
accelerometer—with ±5-g range and 32-µg stability; a local
temperature sensor; and a Search for more information on MEMS Search for more information on Sensors February 2013 Low-noise, high-speed, low-power Op Amp features rail-to-rail output The ADA4895-1 low-noise, high-speed operational amplifier features a rail-to-rail output, 1-nV/rt-Hz noise at 100 kHz, 2-nV/rt-Hz noise at 10 Hz, 236-MHz bandwidth, 943‑V/µs slew rate, 22-ns settling time, and stable operation for G ≥ 10, making it ideal for a variety of applications, including ultrasound, low-noise preamplifiers, driving high-performance ADCs, and buffering high-performance DACs. Operating on a single 3-V to 10-V supply, the ADA4895-1 draws 3 mA when enabled and 100 µA when disabled. Available in 8-lead SOIC and 6-lead SOT-23 packages, it is specified from –40°C to +125°C and priced at $1.89 in 1000s. December 2012 Wideband differential Line Driver provides 225-mA peak output currents
The
ADA4312-1 high-speed, differential,
current-feedback line driver is designed for half-duplex G.hn power line
communication (PLC) modems used in home networks. The –64-dBc multitone
power ratio (MTPR), 225-mA peak output current, 195-MHz bandwidth, and
Dual Op Amp features 10-MHz bandwidth, zero crossover distortion, RRIO The ADA4500-2 high-precision, low-power dual operational amplifier features 120-µV maximum offset, 10-MHz bandwidth, 14.5-nV/√Hz noise, and rail-to-rail input and output swings. Its novel zero-crossover-distortion circuit topology offers high linearity over the full input voltage range, 98-dB minimum power supply rejection, and 95-dB minimum common-mode rejection. This combination of features makes the amplifier ideal for precision sensor signal conditioning, analog-to-digital converter driving, and handheld instrumentation. Operating on a single 2.7-V to 5.5-V supply, the ADA4500-2 draws 1.8 mA maximum over temperature. Available in 8-lead LFCSP and MSOP packages, it is specified from –40°C to +125°C and priced at $0.98 in 1000s. November 2012 Dual high-precision Op Amp features low offset, wide bandwidth, and low noise
The
ADA4077-2 dual operational amplifier features
25-µV max offset, 0.25-µV/°C max drift, 1-nA max input bias current, Low-noise, high-speed, low-power Op Amp features rail-to-rail outputs
The
ADA4895-2 dual low-noise, high-speed operational
amplifier features rail-to-rail outputs, 1-nV/rt-Hz noise at 100 kHz,
October 2012 Analog Front End for single-lead heart-rate monitor The AD8232 analog front end for ECG applications extracts, amplifies, and filters small biopotential signals in the presence of noise, enabling an ultralow-power ADC to acquire the output signal. An on-chip two-pole high-pass filter, which can eliminate motion artifacts and the electrode half-cell potential, is tightly coupled with the instrumentation amplifier, to provide high gain and filtering in a single stage. An uncommitted op amp can implement a three-pole low-pass filter to remove additional noise. All cutoff frequencies are user selectable to suit different applications. A fast restore function reduces the duration of high-pass settling tails, automatically adjusting to a higher filter cutoff after an abrupt signal change, enabling valid measurements soon after connecting the electrodes to the subject. To improve common-mode rejection, the device includes an amplifier for right leg drive or other driven-lead applications. Leads-off detection comparators flag ac or dc open circuits. Operating on a single 2.0-V to 3.5-V supply, the AD8232 draws 170 µA of quiescent current and 40 nA of shutdown current. Available in a 20-lead LFCSP package, it is specified from 0°C to 70°C and priced at $1.36 in 1000s. September 2012 Micropower, zero-drift Instrumentation Amplifier has rail-to-rail inputs and output
The
AD8237 micropower, zero-drift instrumentation amplifier features
rail-to-rail inputs and output, 106-dB min common-mode rejection, Quad, precision, micropower Op Amp features rail-to-rail inputs and outputs The AD8659 quad, precision, micropower, rail-to-rail input/output (RRIO) operational amplifier is optimized for low power and a wide power-supply range, making it ideal for current monitoring and dc gain in process- and motor control, sensor front-ends, and wireless transmitters. It specifies 350-μV max offset voltage, 2-μV/°C drift, 5-pA bias current, 110-dB common-mode rejection, 120-dB open-loop gain, 230-kHz bandwidth, 0.08-V/μs slew rate, 50-nV/rt-Hz noise, and ±12-mA current drive. Operating on a 2.7-V to 18-V supply, the AD8659 draws 18 μA per amplifier. Specified from –40°C to +125°C, it is available in 14-lead SOIC and 16-lead LFCSP packages, and is priced at $1.35 in 1000s. Quad, micropower Op Amp has rail-to-rail inputs/outputs, overvoltage protection
The
ADA4096-4 quad, micropower operational amplifier features rail-to-rail
inputs and outputs. Its low power dissipation and wide operating-voltage
range make it well suited to monitor battery usage and to control battery
charging; its overvoltage protection, allowing the voltage input to extend
32 V above and below the supply rails, makes it ideal for robust industrial
applications; and its dynamic performance recommends it for battery-powered
audio applications. The amplifier features 35-µV offset, Dual, precision, ultralow-noise, zero-drift Op Amp features rail-to-rail inputs/outputs The ADA4528-2 dual, precision, ultralow-noise, rail-to-rail input/output (RRIO), zero-drift operational amplifier is ideal for conditioning the outputs of thermocouples, load cells, and other low-level signals in medical equipment and industrial instrumentation. It specifies 2.5-μV max offset voltage, 0.015-μV/°C max drift, 400-pA max bias current, 158-dB common-mode rejection, 140-dB open-loop gain, 4-MHz bandwidth, 0.45-V/μs slew rate, 5.6-nV/rt-Hz noise, and ±30-mA output current drive capability. Operating on a 2.5-V to 5.0-V supply, the ADA4528-2 draws 1.4 mA per amplifier. Available in an 8-lead MSOP package, it is specified from –40°C to +125°C and priced at $1.52 in 1000s. July 2012 128-channel Analog Front-End for digital X-ray systems The AD8488 analog front-end, designed for use in high-performance digital X-ray systems, includes 128 two-stage charge-conversion amplifiers, internal timing and control circuitry, a 128:1 differential-output multiplexer, and an analog output buffer. The charge-conversion amplifiers, which consist of an integrator followed by a gain-selectable single-ended-to-low-impedance differential-output amplifier, convert the charge acquired by X-ray or photodiode detectors to a voltage. Selectable integration capacitors accommodate a broad input charge range. Simultaneous charge conversion for all 128 channels is followed by a sequential voltage output using a 7-bit address. Operating on a single 4.75-V to 5.25-V supply, the AD8488 consumes 11 mW/channel in normal mode and 4 mW/channel in low-power mode. Available in a 255-ball CSP-BGA package, it is specified from 0°C to 85°C and priced at $64.00 in 1000s. June 2012 Dual JFET-input Amplifier offers 17-MHz bandwidth, rail-to-rail outputs
The
AD823A dual JFET-input op amp features
rail-to-rail outputs and an input voltage range that extends below ground,
providing true single-supply capability. Its specs include 120-µV offset
voltage, 1-µV/°C offset drift, 0.3-pA bias current, Low-power Instrumentation Amplifier features 3-nV/√Hz input noise The AD8421 high-speed, low-noise instrumentation amplifier is well suited for a broad spectrum of signal-conditioning applications. Featuring high common-mode rejection (94-dB min at dc and 80-dB min at 20 kHz), it can extract low-level signals in the presence of high-frequency noise. Its 10-MHz bandwidth, 35-V/µs slew rate, 0.7-µs settling time, and 3-nV/√Hz noise are ideal for multiplexed systems. The current- feedback architecture preserves performance at high gains, achieving 2-MHz bandwidth and 0.6-µs settling time at G = 100. Robust input protection allows voltages 40 V from the opposite supply rail without damage. The reference pin can be used to apply a precise output offset voltage. A single external resistor sets the gain from 1 to 10,000. Operating on a 5-V to 36-V supply or ±2.5-V to ±18-V supplies, the AD8421 draws 2.6 mA max over temperature. Specified from –40°C to +85°C, it is available in 8-lead SOIC and MSOP packages and priced from $2.50 in 1000s. Quad micropower Op Amp features rail-to-rail inputs and outputs The AD8548 quad micropower, rail-to-rail input/output (RRIO) operational amplifier is optimized for low power and a wide power-supply range. Operating on a 2.7-V to 18-V supply, the AD8548 draws 18 μA per amplifier, making it ideal for multichannel current monitoring and dc gain in portable medical equipment, current monitors, and wireless sensors. Its specs include 3-μV/°C drift, 5-pA bias current, 95‑dB common-mode rejection, 100-dB open-loop gain, 200-kHz bandwidth, 0.07-V/μs slew rate, 50-nV/√Hz noise, and ±12-mA output current drive capability.. Specified from –40°C to +125°C, it is available in a 14-lead SOIC package and priced at $1.05 in 1000s. Programmable Current/Voltage Driver for industrial applications The AD5750-2 programmable current/voltage output driver conditions the output of a low-voltage single-supply digital-to-analog converter to drive a current loop and/or a voltage-controlled actuator in programmable logic controllers (PLC) or other industrial process-control applications. It accepts inputs with a 2.5-V full-scale range (FSR), and supplies an open-circuit-protected output current configurable over five output ranges (4–20 mA, 0–20 mA, 0–24 mA, ±20 mA, ±24 mA)—plus a separate short-circuit-protected voltage output configurable over four output ranges (0–5 V, 0–10 V, ±5 V, ±10 V). The current/voltage outputs have 2%/20% over-range capability and ±0.03/±0.02% total unadjusted error (TUE). The outputs can drive up to 1-kΩ 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 AD5750-2 dissipates 108 mW. Available in a 32-lead LFCSP package, it is specified from –40°C to +105°C and priced at $3.29 in 1000s. Amplifiers and Comparators Home Page Search for more information on Amplifiers Search for more information on Comparators November 2012 Precision Analog Microcontrollers include one/two Σ-Δ ADCs, ARM Cortex-M3
The
ADuCM360/ADuCM361 fully integrated, 3.9-kSPS,
24-bit data-acquisition systems include two/one high-performance,
multichannel sigma-delta ADCs, a 32-bit ARM Cortex-M3 processor, and
flash/EE memory. Designed to interface directly to precision sensors in
battery-powered applications, they include 32-kHz and 16-MHz oscillators and
a programmable divider that generates the core clock. The low-power 32-bit
RISC processor offers performance up to 20-MIPS peak, a flexible Analog Microcontrollers Home Page Search for more information on Analog Microcontrollers Analog-to-Digital Converters (ADCs) February 2013 Low-power, 5-electrode, Analog Front-End for electrocardiogram (ECG) systems The ADAS1000-1 measures ECG signals and lead on/off status—and outputs a data frame supplying either lead/vector or electrode data at programmable data rates. The device is designed to simplify the task of acquiring and ensuring high-quality ECG signals, with several digital output options providing maximum flexibility. Custom value-added post-processing is executed externally on a DSP, microprocessor or FPGA. Its low power and small size make it nearly ideal for portable, battery powered applications, while its high performance makes it suitable for high-end diagnostic machines. It features multichannel-averaged driven leads, selectable reference drive, fast overload recovery, and ac/dc leads-off detection. A flexible power/noise scaling architecture allows noise to be reduced at the expense of increasing power consumption. Operating on 1.8-V and 3.3-V supplies, the ADAS1000-1 dissipates 27 mW in high-performance mode and 21 mW in low-power mode. Available in a 56-lead LFCSP package, it is specified from –40°C to +85°C and priced at $15.20 in 1000s. 4-channel Sigma-Delta ADC for automotive audio and noise-cancellation systems The ADAU1977 includes four high-performance ADCs, a boost converter, a voltage regulator, a band gap reference, a PLL, programmable microphone bias, and on-chip diagnostics, to provide a complete analog front-end for automotive audio applications. The ADCs accept line-level or microphone inputs up to 10 V rms using fully differential, pseudo-differential, or single-ended configurations. The multibit, continuous-time sigma-delta architecture achieves low EMI, 106-dB dynamic range, and –95-dB THD+N. The internally generated microphone bias voltage is programmable from 5 V to 9 V. Diagnostic circuitry detects faults—including short to battery, short to microphone bias, short to ground, short between positive and negative input pins, and open input terminals—and reports them via an interrupt flag. The on-chip PLL, which can derive the master clock from an external clock or frame clock, eliminates the need for a separate high-frequency master clock. Operating on a single 3.0-V to 3.6-V supply, the ADAU1977 dissipates 265 mW in normal mode and 9 mW in power-down mode. Available in a 40-lead LFCSP package, it is specified from –40°C to +105°C and priced at $5.06 in 1000s. December 2012 Ultralow-power, 12-bit, 1-MSPS successive-approximation ADC
The
AD7091 ultralow-power successive-approximation
analog-to-digital converter—the industry’s lowest power SAR ADC converter—is
targeted at low-power USB applications, battery powered data-acquisition
modules, handheld meters, field instruments, energy harvesting applications,
portable electrocardiograms, and heart rate monitors. Operating on a single
24-bit, 250-kSPS Sigma-Delta ADC settles in less than 20 µs The AD7176-2 high-resolution, fast-settling multiplexed sigma-delta ADC is ideal for digitizing low-bandwidth signals. Its crosspoint multiplexer configures the inputs as two fully differential or four pseudo-differential channels; and its precision 2.5‑V, 2‑ppm/°C buffered reference adds functionality while reducing the external component count. The maximum channel-scan data rate of 50 kSPS—with 20-μs settling time—provides fully settled data—with 17 noise-free bits. Output data rate is user-selectable over the 5 SPS to 250 kSPS range, with resolution increasing at lower speeds. Three digital filters allow the response to be tailored to the application: the fast settling filter maximizes the channel scan rate; the Sinc3 filter maximizes resolution for single-channel, low-speed applications; and a device-specific filter minimizes settling time or maximizes line-frequency rejection, enabling simultaneous rejection of 50 Hz and 60 Hz with a 27-SPS output data rate and 36-ms settling time. System offset and gain error correction, filter type, and output data rate are selected on a per-channel basis. The crosspoint multiplexer can be configured to automatically control an external multiplexer via the GPIO pins. Operating on a 5-V supply or ±2.5-V supplies, the AD7176-2 dissipates 42.5 mW with internal clock and reference, 39 mW with external clock and reference, 110 µW in standby mode, and 2.5 µW in power-down mode. Available in a 24-lead TSSOP package, it is specified from –40°C to +105°C and priced at $10.25 in 1000s. Low-power, 5-electrode, Analog Front-End for electrocardiogram (ECG) systems The ADAS1000-2 measures ECG signals and lead on/off status—and outputs a data frame supplying either lead/vector or electrode data at programmable data rates. The device is designed to operate as a slave device—with an ADAS1000 as the master device—expanding the number of electrodes to simplify implementation of 12-lead ECG systems. Operating on 1.8-V and 3.3-V supplies, the ADAS1000-2 dissipates 27 mW in high-performance mode and 21 mW in low-power mode. Specified from –40°C to +85°C, it is available in 64-lead LQFP and 56-lead LFCSP packages and is priced at $10.83 in 1000s. Low-power, 3-electrode, Analog Front-End for electrocardiogram (ECG) systems The ADAS1000-3 and ADAS1000-4 measure 3-channel ECG signals and lead on/off status—and output a data frame supplying either lead/vector or electrode data at programmable data rates. The full-featured ADAS1000-4 includes respiration and pace detection, while the ADAS1000-3 offers only ECG signals. The devices are designed to simplify the task of acquiring and ensuring high-quality ECG signals, with several digital output options to provide flexibility. Custom value-added post-processing is executed externally on a DSP, microprocessor or FPGA. Low power and small size are nearly ideal for portable, battery powered applications, while high performance makes them suitable for high-end diagnostic machines. They feature multichannel-averaged driven leads, selectable reference drive, fast overload recovery, and ac/dc leads-off detection. In addition, the ADAS1000-4 adds flexible respiration circuitry and internal pace detection. An adaptable power/noise scaling architecture allows noise to be reduced at the expense of increasing power consumption. Operating on 1.8-V and 3.3-V supplies, the ADAS1000-3/-4 dissipate 19.6 mW in high-performance mode and 15.2 mW in low-power mode. Specified from –40°C to +85°C, they are available in 64-lead LQFP and 56-lead LFCSP packages and are priced at $10.83/$11.40 in 1000s. 8-channel, 16-bit, 1-MSPS Data-Acquisition System The ADAS3022 complete 16-bit, 1-MSPS successive-approximation data-acquisition system uses ADI’s proprietary iCMOS® high-voltage industrial process technology to integrate an 8-channel, low leakage multiplexer; a high-impedance, high common-mode rejection, programmable-gain instrumentation amplifier; a precision, low-drift 4.096-V reference and buffer; and a 16-bit successive-approximation charge-redistribution analog-to-digital converter. It can digitize eight single-ended inputs or four fully differential inputs with signals up to ±24.576 V. In addition, the device can accept commonly used bipolar differential, bipolar single-ended, pseudo bipolar, or pseudo unipolar input signals, thus enabling the use of almost any direct sensor interface. The device simplifies system design by eliminating the need for designers to consider signal buffering, level shifting, amplification/attenuation, common-mode rejection, settling time, and other analog signal conditioning challenges, while supporting a smaller form factor, faster time to market, and lower costs. Operating on 1.8-V, 5-V, and ±15-V supplies, the ADAS3022 dissipates 250 mW. Specified from –40°C to +85°C, it is available in a 40 ‑lead LFCSP packages and is priced at $14.95 in 1000s. November 2012 10-bit Measurement and Control System includes ADC, DACs, temperature sensor The AD7292 data acquisition and control system contains all the functionality required to monitor analog signals and control external devices—including an 8-channel, 10-bit successive-approximation ADC, four 10-bit DACs, a ±1°C accurate internal temperature sensor, and 12 general-purpose I/Os. The high-speed, low-power ADC can monitor up to eight single-ended inputs. Two of the channels can be configured to monitor a differential input. A register is available to program a sequence of channels for conversion. The DACs provide an output range of 0 V to 5 V. The high-accuracy on-chip 1.25-V reference provides a buffered source for the ADC and DACs. The high-accuracy band-gap temperature sensor offers 0.031°C resolution. Operating on 1.8-V to 5.25-V and 4.75-V to 5.25-V supplies, the AD7292 dissipates 37.9 mW when operating and 26 mW when static. Available in a 36-lead LFCSP package, it is specified from –40°C to +125°C and priced from $3.92 in 1000s. Dual 14-bit, 170-/250-MSPS Pipelined ADC features JESD204B serial digital outputs The AD9250 dual 14-bit, 170-/250-MSPS ADC uses a multistage, differential pipelined architecture with integrated output error-correction logic to enable diversity radio system, multimode receivers, and other high-performance communications applications. The wideband differential inputs support frequencies up to 400 MHz and voltages from 1.4 V p-p to 2.0 V p-p, as determined by the on-chip voltage reference. A duty cycle stabilizer compensates for variations in the ADC clock duty cycle. The JESD204B high-speed serial interface simplifies PCB routing and lowers pin count. Output data, provided at CML levels, can be sent through two lanes at the maximum sampling rate of 250 MSPS, and can be synchronized with other devices. Setup and control is programmed via the 3-wire SPI-compatible serial interface. Operating on a single 1.7-V to 1.9-V supply, the AD9250 dissipates 711 mW at 250 MSPS, 339 mW in standby mode, and 9 mW in power-down mode. Available in a 48-lead LFCSP package, it is specified from –40°C to +85°C and priced from $72.49 in 1000s. September 2012 Ultralow-power, 12-bit, 1-MSPS successive-approximation ADC The AD7091R ultralow-power successive-approximation analog-to-digital converter achieves 12-bit accuracy at 1-MSPS sampling rates while consuming only 1 mW. Power consumption that scales with throughput—along with power-down mode—enables system power to be optimized for the application, dropping to 38 µW at 5 ksps using one-shot or intermittent conversion. Operating on a single 3-V/5.25-V supply, the AD7091R consumes 1 mW/2.3 mW at 1 MSPS, 65 µW/116 µW in static mode, and 0.8 µW/1.8 µW in power-down mode. An on-chip oscillator controls the conversion process, further optimizing power consumption. Conversion results are accessed via an SPI-compatible interface. An on-chip, accurate 2.5-V reference reduces PCB area and cost. Specified with a 2.7-V to 5.25-V supply, a separate 1.65-V to 5.25-V logic supply maximizes system integration capabilities and flexibility. Available in 10-lead MSOP and LFCSP packages, the AD7091R is specified from –40°C to +125°C and priced at $2.15 in 1000s. Low-power, 5-electrode, Analog Front-End for electrocardiogram (ECG) systems The ADAS1000 measures ECG signals, thoracic impedance, pacing artifacts, and lead on/off status—and outputs a data frame supplying either lead/vector or electrode data at programmable data rates. The full-featured 5-channel ECG includes respiration and pace detection. The device is designed to simplify the task of acquiring and ensuring high-quality ECG signals, with several digital output options to ensure flexibility. Custom value-added postprocessing is executed externally on a DSP, microprocessor or FPGA. Its low power and small size make it nearly ideal for portable, battery powered applications, while its high performance makes it suitable for high-end diagnostic machines. It features multichannel-averaged driven leads, selectable reference drive, fast overload recovery, flexible respiration circuitry, internal pace detection, and ac/dc leads-off detection. A flexible power/noise scaling architecture allows noise to be reduced at the expense of increasing power consumption. Operating on 1.8-V and 3.3-V supplies, the ADAS1000 dissipates 27 mW in high-performance mode and 21 mW in low-power mode. Specified from –40°C to +85°C, it is available in a 64-lead LQFP package and is priced at $18.24 in 1000s. August 2012 Dual, 12-/14-bit, 125-MSPS ADCs have serial LVDS outputs The AD9635/AD9645 feature two high-performance sampling 12-/14-bit, 125-Msps analog-to-digital converters and a common on-chip voltage reference. Using a multistage differential pipeline architecture with output error-correction logic, each channel guarantees no missing codes over the full operating temperature range. Designed for low cost, low power, small size, and ease of use, the converters are optimized for outstanding dynamic performance. No external reference or driver components are required for many applications. Programmable clock- and data alignment and digital test-pattern generation enhance flexibility and minimize system cost. Digital test patterns include built-in deterministic- and pseudorandom patterns, along with custom user-defined patterns, entered via the serial port interface (SPI). The ADCs automatically multiply the external LVPECL-/CMOS-/LVDS-compatible sample-rate clock to generate the LVDS serial data rate to provide: a data-clock output for capturing data on the output and a frame-clock output for signaling a new output byte. Operating with 1.7-V to 1.9-V supply; the AD9635/45 dissipate 167/171 mW at 80 Msps, 212/227 mW at 125 Msps, 114/115 mW in standby mode, and 2 mW in power-down mode. Available in 32-lead LFCSP packages, they are specified from –40°C to +85°C and priced from $25.00/$37.50 in 1000s. July 2012 Quad, 16-bit, 125-MSPS ADC has serial LVDS outputs
The
AD9653 features four high-performance sampling
16-bit, 125-Msps analog-to-digital converters and a common on-chip voltage
reference. Using a multistage differential pipeline architecture with output
error-correction logic, each channel achieves 16-bit accuracy at 125-Msps
data rates and guarantees no missing codes over the full operating
temperature range. Designed for low cost, low power, small size, and ease of
use, the AD9653 is optimized for outstanding dynamic performance. No
external reference or driver components are required for many applications.
Programmable clock- and data alignment and digital test-pattern generation
enhance flexibility and minimize system cost. Digital test patterns include
built-in deterministic- and pseudorandom patterns, along with custom
user-defined patterns, entered via the serial port interface (SPI). The ADC
automatically multiplies the external LVPECL-/CMOS-/LVDS-compatible
sample-rate clock to generate the LVDS serial data rate and provides: a
data-clock output for capturing data on the output and a frame-clock output
for signaling a new output byte. Operating with 1.7-V to 1.9-V supply; the
AD9653 dissipates 607 mW at 125 Msps, 356 mW in standby mode, and 2
mW in power-down mode. Available in a Analog-to-Digital Converter Home Page Search for more information on Analog-to-Digital Converters March 2013 Stereo PDM-to-I2S or PDM-to-TDM Converter The ADAU7002 converts a stereo PDM bit stream into a 20-bit PCM output. The PDM data can be provided by a digital microphone, such as the ADMP521, or other PDM source. The audio data is down sampled by 64× and output in either I2S or TDM format at a sample rate between 4 kHz and 96 kHz. The device automatically shuts down when the clock is removed. Operating on a single 1.62-V to 3.6-V supply, the ADAU7002 draws 1.33 mA at 3.6 V, 0.67 mA at 1.8 V, and 1 µA in shutdown mode. Available in an 8-ball WLCSP package, it is specified from –40°C to +85°C and priced at $1.04 in 1000s. February 2013 10-bit SDTV Video Decoder has differential inputs The ADV7182 10-bit video decoder detects and converts standard-definition composite, S-Video, or YPrPb analog video signals into 4:2:2 component-video data. Used in automotive infotainment, media players, and video security systems, it is compatible with NTSC, PAL, and SECAM analog inputs and 8-bit ITU-R BT.656 digital outputs. Integrating an input mux, anti-aliasing filters, a sampling ADC, a color-processing block and a digital-processing engine, it offers a glueless interface in many applications. The four analog video channels are configurable for fully differential, pseudo-differential, and single-ended inputs. Operating on 1.8-V and 3.3-V supplies, the ADV7182 dissipates 210 mW with single-ended composite-video inputs and 1 mW in power-down mode. Available in a 32-lead LFCSP package, it is specified from –40°C to +105°C and priced at $5.00 in 1000s. Low-power 165-MHz HDMI Receiver The ADV7610 high-quality, single-input receiver incorporates HDMI 1.4a features, and supports all mandatory 3DTV standards, all HDTV formats up to 1080p, and display resolutions up to UXGA (1600 × 1200 @ 60 Hz). It includes high-bandwidth digital content protection (HDCP)—enabling reception of encrypted video; consumer electronic control (CEC) that supports capability discovery and control (CDC); and adaptive equalization, facilitating operation with long cables. The flexible audio output port provides data extracted from the HDMI stream in I2S, S/PDIF, or DST formats for up to eight channels of compressed or uncompressed audio. An advanced mute controller prevents extraneous noise. The ADV7610 operates with 1.8-V and 3.3-V supplies. Available in a 76-ball CSP-BGA package, it is specified from –40°C to +85°C and priced at $5.83 in 1000s. A non-HDCP version is priced at $6.02 in 1000s. December 2012 4-input, 2-output, 2.25-GHz XpressView HDMI Splitter The ADV7630 high-quality HDMI splitter incorporates a 4‑channel HDMI receiver, a 4:1 multiplexer, a 1:2 HDMI splitter, and a 2-channel HDMI transmitter. It supports all mandatory 3DTV formats, HDTV formats up to 1080p with 36-bits per pixel Deep Color, and display resolutions up to 1080p at 60 Hz. Encrypted video is enabled with internal high-definition content-protection (HDCP) keys and up to 127 key-selection vectors for the repeater function. XpressView™ technology allows fast switching between all HDMI input ports in less than 1 second. The consumer electronics controller (CEC) supports capability discovery and control (CDC). Each HDMI input port has dedicated 5-V detect and hot-plug assert pins. An integrated equalizer ensures robust operation of the interface, even with cable lengths up to 30 meters. The extended display identification data (EDID) replicator and internal EDID RAM can be powered from the HDMI cable when ac power is removed from the system. Specified from 0°C to 70°C, the ADV7630 is available in a 128-lead TQFP package and is priced at $8.19 in 1000s. 2.7-W monophonic Class-D Audio Amplifier accepts PDM digital input
The
SSM2537 digital-input, class-D audio amplifier
can deliver 2.7 W of continuous output power into 4-Ω loads—or 1.4 W into
8-Ω loads—with 93% efficiency, 102-dB signal-to-noise ratio (SNR), and less
than 1% distortion. Ideal for power-sensitive applications, such as mobile
phones and portable media players, it accepts pulse-density modulated (PDM)
audio data via a 2-wire serial interface, thereby reducing the effect of
noise sources. The 3-level class-D operation minimizes clicks and pops,
turn-on glitches, and EMI emissions—and provides thermal shutdown and
short-circuit protection. A 4-state gain and sample-frequency selection pin
can select two different gain settings—optimized for 3.6-V and 5-V
operation—and two different sample rates—to support 3-MHz and November 2012 Mono 2.9-W Class-D Audio Amplifier provides digital outputs The SSM4321 fully integrated, high-efficiency, filterless Class-D audio amplifier can deliver 2.2 W of continuous output power into a 4-Ω load or 1.4 W into an 8-Ω load—with 89% efficiency, 100-dB SNR, and 1% THD + N. Using an external 0.1-Ω sense resistor, it also provides digitized versions of the output voltage, output current, and PVDD supply voltage. The output voltage and current are digitized by 16-bit ADCs; the supply voltage value is digitized by an 8-bit ADC. The ADC outputs are available on a serial TDM/I2S port. Designed for mobile phone applications, the amplifier requires a minimal number of external components. Its high-efficiency, low-noise, spread-spectrum pulse-density modulation scheme minimizes EMI, eliminates clock intermodulation from closely spaced amplifiers, and requires no external LC output filters. A single external resistor selects gain settings of 0 dB, 3 dB, 6 dB, 9 dB, or 12 dB. Input impedance is fixed at 80 kΩ, independent of the selected gain. Click-and-pop-suppression circuitry minimizes voltage glitches at output during turn-on and turn-off, reducing audible noise on activation and deactivation. Operating on 2.5-V to 5.5-V and 1.42-V to 3.6-V supplies, the SSM4321 dissipates 19.7 mW with an 8-Ω load and 1.9 µW in shutdown mode. Available in a 16-ball WLCSP package, it is specified from –40°C to +85°C and priced at $1.36 in 1000s. September 2012 Triple Differential Receiver with adjustable line equalization The AD8122 three-channel differential receiver and equalizer compensates for the transmission losses incurred from UTP cables up to 300 meters long and coaxial cables up to 200 meters long. Designed for receiving RGB and YPbPr high-definition video signals, it is ideal for KVM (keyboard-video-mouse), digital signage, and professional video-distribution applications. High-frequency peaking, broadband gain, dc offset, and low-pass cutoff frequency are adjustable via analog control pins for optimal compensation. For added flexibility, the output buffer gain can be set to +1 or +2; and two auxiliary comparators with hysteresis facilitate common-mode sync extraction. Operating on a single 4.5-V to 5.5-V supply, the AD8122 consumes 930 mW when operating and 19 mW when powered down. Specified from –40°C to +85°C, it is available in a 40-lead LFCSP package and priced at $9.90 in 1000s. Low-power Codec with Audio Processor includes four ADCs, two DACs
The
ADAU1772 low-power audio codec with four inputs and
two outputs provides high-quality audio for noise-cancelling headsets; a
complete headset solution requires only a few passive components, a crystal,
and a boot EEPROM. The path, from the analog input through the DSP core to
the analog output, is optimized for low latency. The record path includes
two digital stereo microphone inputs and four single-ended analog inputs
that can be configured as microphone or line inputs. The playback path
includes a stereo analog audio output that can be configured as a line
output or a headphone driver. To improve overall audio quality, the digital-processing engine performs
filtering, level control, signal-level monitoring, and mixing.
Supporting 24-bit data at 2-W, class-D Audio Power Amplifier accepts digital inputs The SSM2519 digital-input, class-D audio amplifier can deliver 2.31 W of continuous output power into 4-Ω loads—or 1.35 W into 8-Ω loads—with 90% efficiency, 98-dB signal-to-noise ratio (SNR), and less than 1% distortion. Ideal for power-sensitive applications, such as mobile phones and portable media players, it accepts audio data via a standard serial interface, thereby reducing the effect of noise sources. The 3-level class-D operation minimizes clicks and pops, turn-on glitches, and EMI emissions—and provides thermal shutdown and short-circuit protection. The serial audio input interface is programmable to accept all common audio formats including I2S and TDM, offering an ideal system solution for products—such as wireless speakers, laptop PCs, portable digital televisions, and navigation systems—whose sole audio source is digital. Control functions are provided via an I2C control interface. Additional features include adjustable gain and a digital volume control. Operating on a 2.5-V to 5.5-V supply, the SSM2519 dissipates 6 mW in normal mode and 1.3 µW in hardware-shutdown mode. Available in a 12-ball WLCSP package, it is specified from –40°C to +85°C and priced at $1.17 in 1000s. 2-W, class-D Audio Power Amplifier includes digital audio processor
The
SSM2529 digital-input, class-D audio amplifier
can deliver 2.4 W of continuous output power into 4-Ω loads—or 1.4 W into
8-Ω loads—with 95% efficiency, 103-dB signal-to-noise ratio (SNR), and less
than 1% distortion. Ideal for power-sensitive applications, such as mobile
phones and portable media players, it accepts audio data via a standard
serial interface, thereby reducing the effect of noise sources. The July 2012 Single-ended standard-definition Video Filter with short-to-battery protection
The
ADA4432-1 single-ended video reconstruction
filter combines robust protection against: shorts to battery, shorts to
ground, and ESD, with excellent video specifications and low power
consumption, providing superior protection and performance in hostile
automotive environments. The video filter, which accepts a single-ended
input and provides a single-ended output, can drive long back-terminated
cables. The high-order filter features a 10-MHz cutoff frequency, 45-dB
rejection at 27 MHz, and a fixed 2-V/V gain, making it ideal for SD video
applications—including NTSC and PAL. Operating on a single Complete Audio/Video Front-End
The
ADV7850 multiformat A/V front-end decodes
composite or S-Video inputs, meeting PAL, NTSC, and SECAM standards;
digitizes RGB graphics and component video signals; and converts the
resulting signals into an HDMI® output stream. It supports SMPTE
and HD component video standards up to 1080p/1250i and display resolutions
up to UXGA (1600 × 1200 at 60 Hz). Simultaneous processing of CVBS and
standard definition RGB signals enables SCART and overlay functionality; and
simultaneous operation in quad HDMI and analog input modes allows fast
switching between analog video and HDMI. The 4-channel HDMI receiver
supports all HDTV formats up to 3D 1080p at 60 Hz and 2160p at 24 Hz. HDCP
decryption with internal key storage and simultaneous HDCP authentication
allows Xpressview™ fast switching between HDMI ports. An integrated
equalizer ensures robust operation of the interface with cable lengths up to
30 meters at the highest supported video resolution. A flexible audio output
port supports HDMI audio formats—including High Bit Rate (HBR), DSD, DST,
and 8-channel PCM; and an audio return channel (ARC), which simplifies
cabling by combining upstream audio capability in a conventional HDMI cable.
A stereo audio ADC converts analog audio inputs and provides data via the
HDMI interface. A stereo audio DAC receives I2S data and converts
it to an analog audio output. The ADV7850 operates on 1.8-V and 3.3-V
supplies. Available in a June 2012 Fully differential standard-definition Video Filter with short-to-battery protection
The
ADA4433-1 fully integrated video reconstruction
filter combines robust short-to-battery protection, short-to-ground
protection, and ESD tolerance with excellent video specifications and low
power consumption, allowing it to provide superior protection and
performance in hostile automotive environments. The fully differential video
filter, which accepts single-ended or differential inputs and provides a
differential output, can drive twisted pair or coaxial cable with minimal
line attenuation. Differential signal processing reduces the effects of
ground noise that can plague ground-referenced systems. The high-order
filter features a 10-MHz cutoff frequency, 45-dB rejection at 27 MHz, and a
fixed 2-V/V gain, making it ideal for SD video applications—including NTSC
and PAL. Operating on a single 2.6-V to 3.6-V supply, the Vertical Driver for CCD Cameras The ADDI9023 twelve-channel vertical driver for CCD imaging applications provides eight 3-level drivers, four 2-level drivers, and a separate substrate clock channel. The input configuration can support up to nine individual vertical timing phases and eight shift gate signals. Each channel can drive 3-nF loads. The ADDI9023 dissipates 25 mW. Available in a 6-mm x 6-mm, 40-lead CSP-BGA package, it is specified from –25°C to +85°C and priced at $7.75 in 1000s. Search for more information on Audio Search for more information on Video Digital-to-Analog Converters and Digital Potentiometers April 2013 Dual 10-bit nanoDAC Digital-to-Analog Converters include 2-ppm/°C reference
14-bit, 32-channel DAC with programmable full-scale output-voltage of 50 V to 200 V
Quad, 12-/16-bit nanoDAC+ Digital-to-Analog Converters
Dual, 12-/16-bit nanoDAC+ Digital-to-Analog Converters include 2-ppm/°C reference
Dual, 12-bit nanoDAC+ Digital-to-Analog Converter includes 2-ppm/°C reference
March 2013 Low-power 14-bit, 180-MSPS Digital-to-Analog Converter and Waveform Generator The AD9102 TxDAC® digital-to-analog converter combines a high-performance DAC with on-chip pattern memory for complex waveform generation using a direct digital synthesizer (DDS). The DDS generates a 14-bit sine wave at up to 180 MHz for use as a master clock. A 24-bit tuning word enables 10.8-Hz frequency resolution; an SRAM can store waveforms, modulation patterns, and DDS tuning words; and a state machine programs the period and start delay within the period. Control and configuration data is loaded via an SPI-compatible interface. Operating on a single 1.8-V supply, the AD9102 dissipates 51 mW at 180 MSPS and 1.49 mW in power-down mode. Available in a 32‑lead LFCSP package, it is specified from –40°C to +85°C and priced at $12.35 in 1000s. 11-/14-bit, 5.6-GSPS RF Digital-to-Analog Converters The AD9119/AD9129 high performance 11-/14-bit RF digital-to-analog converters support data rates up to 2.8 GSPS. The quad-switch architecture enables dual-edge clocking, effectively increasing the DAC update rate to 5.6 GSPS when configured for Mix-Mode™ or 2× interpolation. Baseband mode supports up to 158 contiguous carriers for CATV infrastructure applications. Mix-Mode operation can reconstruct RF carriers in the second and third Nyquist zones while maintaining exceptional dynamic range up to 4.2 GHz. The DAC output current can be programmed over the 9.5 mA to 34.4 mA range. The dual-port, synchronous LVDS port simplifies the data interface to a host FPGA/ASIC. An SPI-compatible serial port is used for configuration and monitoring. Operating on +1.8-V and –1.5-V supplies, the AD9119/29 dissipate 1 W in normal mode and 23.4 mW in reduced-power mode. Available in 160-ball CSP-BGA packages, they are specified from –40°C to +85°C and priced from $49.00 in 1000s. February 2013 Quad, 12-bit, 180-MSPS Digital-to-Analog Converter and Waveform Generator The AD9106 TxDAC® digital-to-analog converter combines a high-performance quad DAC with on-chip pattern memory for complex waveform generation using a direct digital synthesizer (DDS). The DDS generates 12-bit sine waves at up to 180 MHz for use as a master clock. A 24-bit tuning word enables 10.8-Hz frequency resolution. Four independently phased programmable sine waves at a single output frequency are provided to the four DACs—with each furnishing independently adjustable gain and offset. An SRAM can store waveforms, modulation patterns, and DDS tuning words; and a state machine programs the period for all four DACs and the start delay within the period for each DAC. Control and configuration data is loaded via an SPI-compatible interface. Operating on a single 1.8-V supply, the AD9106 dissipates 167 mW at 180 MSPS and 1.49 mW in power-down mode. Available in a 32‑lead LFCSP package, it is specified from –40°C to +85°C and priced at $15.00 in 1000s. December 2012 Single, dual, and quad, 128-/256-position nonvolatile Digital Potentiometers
The AD512x/AD514x family of nonvolatile digital
potentiometers feature 128-/256-position resolution; 10-kΩ and 100-kΩ
end-to-end resistance options; 40-Ω wiper resistance, ±8% max
resistance-tolerance error, 35-ppm/°C temperature coefficient, and up to
±6-mA continuous current capability. The devices perform the same electronic
adjustment function as mechanical potentiometers or rheostats, but are
smaller and more reliable. The wiper settings are controllable through a
digital interface, which is also used to read back the wiper register and
EEPROM content. The 3-MHz bandwidth and –90-dB total harmonic distortion
ensure optimal performance for ac signals, making the devices suitable for
filter design. Operating with a 2.3-V to 5.5-V or ±2.25-V to ±2.75-V analog
supply and a digital supply as low as 1.8 V, the AD512x/4x draw 700 nA.
Specified from –40°C to
Dual 16-bit, 1600-MSPS TxDAC+ Digital-to-Analog Converter
The
AD9142 dual 16-bit, 1600-MSPS TxDAC+®
digital-to-analog converter enables multicarrier signal generation at
frequencies up to Nyquist. Optimized for direct-conversion transmit
applications, it includes complex digital modulation; input signal power
detection; and gain, phase, and offset compensation. The 2×/4×/8×
interpolator/complex modulator enables carrier placement anywhere within the
DAC bandwidth. The DAC outputs interface seamlessly with quadrature
modulators in the ADL537x September 2012 10-bit nanoDAC D/A Converters with 2-ppm/°C reference The AD5316R and AD5317R quad, 10-bit nanoDAC® buffered voltage-output DACs include an internal 2.5-V, 2-ppm/°C reference that is enabled by default. A gain-select pin sets the full-scale output to 2.5 V or 5 V. Guaranteed monotonic by design, the DACs exhibit less than 0.1% FSR gain error and 1.5-mV offset error. A power-on reset circuit ensures that the outputs power up to zero scale or midscale and remain at that level until a valid write takes place. The AD5316R includes an I2C-compatible serial interface that operates at clock rates up to 400 kHz; the AD5317R includes an SPI-compatible serial interface that operates at clock rates up to 50 MHz and supports readback and daisy-chaining in systems with higher channel counts. Operating on a 2.7-V to 5.5-V supply, the devices are compatible with 1.8-V to 5.5-V logic. They draw 1.1 mA when the internal reference is on and 0.59 mA when it is off. A per-channel power-down mode reduces the supply current to 1 µA. Specified from –40°C to +105°C, the AD5316R/17R are available in 16-lead TSSOP and 3-mm × 3-mm LFCSP packages and priced at $2.88 in 1000s. Quad, 12-/16-bit nanoDAC+ D/A Converters
The
AD5684/AD5686 and
AD5694/AD5696 quad, 12-/16-bit nanoDAC+TM
buffered voltage-output DACs feature Direct Digital Synthesizers with 12-bit DAC operate to 3.5 GSPS/2.5 GSPS The AD9914/AD9915 direct digital synthesizers include a 12-bit DAC that operates at up to 3.5 GSPS/2.5 GSPS. They implement a complete, digitally programmable, high-frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 1.4 GHz/1.0 GHz. Designed for fast frequency hopping and fine tuning resolution (32-bit in standard mode, 64-bit using programmable-modulus mode), they also offer fast phase- and amplitude-hopping capability. Frequency tuning and control words are loaded via a serial or parallel I/O port. The devices also support a user-defined linear-sweep mode for generating highly linear waveforms with swept frequency, phase, and amplitude. A high-speed parallel data port enables high data rates for polar modulation schemes and fast reprogramming of the phase, frequency, and amplitude tuning words. Operating with 1.8-V and 3.3-V supplies, the AD9914/15 dissipate 2.2 W at 2.5 GHz and 400 mW in power-down mode. Available in 88-lead LFCSP packages, they are specified from –40°C to +85°C and priced at $135.58/$108.38 in 1000s. Digital-to-Analog Converter Home Page Search for more information on Digital-to-Analog Converters November 2012 Precision Analog Microcontrollers include one/two Σ-Δ ADCs, ARM Cortex-M3
The
ADuCM360/ADuCM361 fully integrated, 3.9-kSPS,
24-bit data-acquisition systems include two/one high-performance,
multichannel sigma-delta ADCs, a 32-bit ARM Cortex-M3 processor, and
flash/EE memory. Designed to interface directly to precision sensors in
battery-powered applications, they include 32-kHz and 16-MHz oscillators and
a programmable divider that generates the core clock. The low-power 32-bit
RISC processor offers performance up to 20-MIPS peak, a flexible June 2012 SHARC Processor The ADSP-21477 fourth-generation low-power SHARC® processor’s increased performance, hardware-based filter accelerators, audio- and application-focused peripherals, and 2 Mbits of on-chip SRAM make it ideal for professional and automotive audio applications. The single-instruction, multiple-data (SIMD) core supports 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats—performing up to 1200 MFLOPS with a 200-MHz clock. The variable instruction-set architecture (VISA) allows code size to be decreased by 20% to 30%, increasing the available memory. Application-specific peripherals simplify hardware design, minimize design risks, and reduce time to market. The software-programmable signal routing unit (SRU) enables flexible routing of digital application interface (DAI) blocks. Peripherals connected through the SRU include serial ports, SPI ports, S/PDIF transceiver, and an 8-channel asynchronous sample-rate-converter block. The digital peripheral interface (DPI) includes a UART and a two-wire interface. FIR, IIR, and FFT accelerators increase the total system performance. The DMA controller can transfer data from the serial ports to external 16-bit SDR SDRAMs through a glueless interface. The ADSP-21477 is fully code compatible with all SHARC processors. Specified from 0°C to +70°C (K-grade) or –40°C to +85°C (B-grade), the ADSP-21477 is available in 100-lead LQFP and 88-lead LFCSP packages and priced from $9.70 in 1000s. Search for more information on Embedded Processing and DSP May 2013 Keypad Decoder and I/O Port Expander
April 2013 High-performance Isolated Error Amplifier offers alternative to optocouplers and shunt regulators
March 2013 Dual-channel Digital Isolator with DC-to-DC Converter The ADuM6210, ADuM6211, and ADuM6212 dual-channel digital isolators include an isoPower® integrated, isolated dc-to-dc converter. Based on iCoupler® technology, the dc-to-dc converter provides regulated, isolated power, adjustable between 3.15 V and 5.25 V. Input supply voltages can range from slightly below the required output to significantly higher, eliminating the need for a separate, isolated dc-to-dc converter in low power, isolated designs. The iCoupler chip-scale transformer technology is used to isolate the logic signals and for the magnetic components of the dc-to-dc converter. The result is a small form factor, total isolation solution. The three models provide two independent isolation channels in a variety of channel configurations and data rates. Available in 20-lead SSOP packages with 5.3mm creepage, the ADuM621x are specified from –40°C to +105°C and priced from $3.36 in 1000s. February 2013 4-channel Digital Isolator and Switching Regulator The ADuM4470, ADuM4471, ADuM4472, ADuM4473, and ADuM4474 use iCoupler® chip-scale transformer technology to combine a 4‑channel digital isolator with an isolated dc-to-dc switching regulator. The dc-to-dc regulator includes a MOSFET driver, isolated PWM feedback from the secondary side, and complete loop compensation, totally supplanting optocouplers. Starting with a 3.3-V or 5-V primary voltage, it provides a stable 3.3-V to 24-V, 2.5-W isolated output with up to 80% efficiency. The five models offer four independent isolation channels with a variety of configurations and data rates up to 25 Mbps. Featuring 5-kV rms isolation and greater than 25-kV/μs common-mode transient immunity, the robust design includes soft start, over-current protection, and thermal shutdown. Available in 20-lead SOIC packages, the ADuM447x are specified from –40°C to +105°C and priced from $4.45 in 1000s. 2-channel Digital Isolator and DC-to-DC Converter The ADuM5210, ADuM5211, and ADuM5212 use iCoupler® chip-scale transformer technology to combine a 2-channel digital isolator with an isoPower® isolated dc-to-dc converter. Accepting a voltage ranging from slightly below the required output to significantly higher, the dc-to-dc converter provides a stable 3.15-V to 5.25-V, 150‑mW isolated output, eliminating the need for a separate, isolated dc-to-dc converter in low-power, isolated designs. The three models offer two independent isolation channels with a variety of configurations and data rates up to 100 Mbps. Featuring 2.5-kV rms isolation and greater than 25-kV/μs common-mode transient immunity, the robust design includes soft start, over-current protection, and thermal shutdown. Available in 20-lead SSOP packages, the ADuM521x are specified from –40°C to +105°C and priced from $2.32 in 1000s. December 2012 2-channel Digital Isolators provide 5-kV rms isolation rating The ADuM2280, ADuM2281, ADuM2285, and ADuM2286 two-channel digital isolators use patented iCoupler® technology to provide superior performance at lower cost than high-speed optocouplers. The devices provide two independent isolation channels with safety- and regulatory approvals (pending) from UL, CSA, and VDE. Both channels communicate in the same direction in the ADuM2280/85, and in opposite directions in the ADuM2281/86. A-/B-/C-grades feature 50‑/39-/24-ns max propagation delay, data rates from dc to 1/25/100 Mbps, 5-kV rms isolation, and greater than 25-kV/μs common-mode transient immunity. Refresh circuitry ensures correct dc levels in the absence of logic transitions. The outputs of the ADuM2280/81 default to logic high upon power up; the outputs of the ADuM2285/86 default to logic low. 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, the ADuM228x are specified from –40°C to +125°C and priced from $1.22 in 1000s. Isolated Switching Regulator The ADuM4070 power-supply controller delivers isolated PWM feedback from the secondary side to the primary side using iCoupler® chip-scale transformer technology, eliminating the need for optocouplers. Starting with a 3.3-V or 5-V primary voltage, it provides a stable 3.3-V to 24-V, 2.5-W isolated output voltage with up to 80% efficiency. Featuring 5-kV rms isolation and greater than 25-kV/μs common-mode transient immunity, the robust design includes soft start, over-current protection, and thermal shutdown. Integrating the feedback and loop compensation enables a smaller form factor than any discrete solution. Available in a 16-lead SOIC package, the ADuM4070 is specified from –40°C to +105°C and priced at $1.62 in 1000s. Integrated DC-to-DC Converters
The
ADuM5010/ADuM6010 integrated, isolated dc-to-dc
converters use iCoupler®
technology to provide up to 150 mW of regulated, isolated power—adjustable
between 3.15 V and 5.25 V—from an input supply voltage that can range from
slightly below the required output to significantly higher. The chip-scale
transformers provide the isolated control signals as well as the magnetic
components of the dc-to-dc converter. The result is an isolation solution in
a small form factor with greater than 25-kV/µs common-mode transient
immunity and November 2012 Six-channel Digital Isolators feature 1-kV rms isolation rating The ADuM7640, ADuM7641, ADuM7642, and ADuM7643 six-channel digital isolators use patented iCoupler® technology to provide superior performance at lower cost than high-speed optocouplers. The devices provide six independent isolation channels, with three to six channels communicating in one direction and the remaining channels communicating in the opposite direction, depending upon the model. Providing 1‑kV rms isolation and greater than 15-kV/μs common-mode transient immunity, A-/C-grades feature 250-/40-ns min pulse widths, 75-/50-ns max propagation delay, and data rates from dc to 1/25 Mbps. Refresh circuitry ensures correct dc levels in the absence of logic transitions. The outputs default to logic high upon power up. The power supplies on each side can range from 3 V to 5.5 V, allowing level translation across the isolation barrier. Available in 20-lead QSOP packages, the ADuM764x are specified from –40°C to +105°C and priced from $2.16 in 1000s. October 2012 Dual RS-422 Transceiver is protected against ±15-kV ESD events The ADM4168E dual RS-422 transceiver enables high-speed communication on point-to-point and multidrop transmission lines. Designed for balanced transmission lines, it complies with TIA/EIA-422-B. The bus inputs are protected against electrostatic discharge (ESD) events up to ±15 kV HBM and ±8 kV IEC 61000-4-2. Short-circuit protection circuitry prevents excessive power dissipation caused by bus contention or output shorting. Short-circuit protection limits the maximum output current to 150 mA during fault conditions. A fail-safe feature produces a logic high output state if the inputs are unconnected. Operating from a single 4.5-V to 5.5-V supply, the ADM4168E draws 4 mA. Specified from –40°C to +85°C, it is available in a 16-pin TSSOP package and priced at $0.80 in 1000s. September 2012 Compact 4-channel Digital Isolators provide 3.75-kV rms isolation
The
ADuM3480,
ADuM3481, and
ADuM3482 digital isolators provide four
independent isolation channels using patented iCoupler®
technology, with superior performance to high-speed optocouplers, at lower
cost. Safety- and regulatory approvals from UL, CSA, and VDE are pending.
All channels communicate in the same direction in the ADuM3480; three
channels communicate in one direction and one channel communicates in the
opposite direction in the ADuM3481; and two channels communicate in
each direction in the ADuM3482. They feature 3.75-kV rms 1-minute
withstand isolation, greater than June 2012 2-channel Digital Isolators provide 3-kV rms isolation rating The ADuM1280, ADuM1281, ADuM1285, and ADuM1286 two-channel digital isolators use patented iCoupler® technology to provide superior performance at lower cost than high-speed optocouplers. The devices provide two independent isolation channels with safety- and regulatory approvals (pending) from UL, CSA, and VDE. Both channels communicate in the same direction in the ADuM1280/85, and in opposite directions in the ADuM1281/86. They feature 3-kV rms isolation and greater than 25-kV/μs common-mode transient immunity, 50‑/35-/24-ns max propagation delay, and data rates from dc to 1/25/100 Mbps. Refresh circuitry ensures correct dc levels in the absence of logic transitions. The outputs of the ADuM1280/81 default to logic high upon power up; the outputs of the ADuM1285/86 default to logic low. 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, the ADuM128x are specified from –40°C to +125°C and priced from $0.88 in 1000s. Isolated Switching Regulator The ADuM3070 power-supply controller delivers isolated PWM feedback from the secondary side to the primary side using iCoupler® chip scale transformer technology, eliminating the need for optocouplers. Starting with a 3.3-V or 5-V primary voltage, it provides a stable 3.3-V to 24-V, 2.5-W isolated output voltage with up to 80% efficiency. Featuring 2.5-kV rms isolation and greater than 25-kV/μs common-mode transient immunity, the robust design includes soft start, over-current protection, and thermal shutdown. Integrating the feedback and loop compensation enables a smaller form factor than any discrete solution. Available in a 16-lead QSOP package, the ADuM3070 is specified from –40°C to +105°C and priced at $1.41 in 1000s. Isolated Half-Bridge Drivers provide 4-A peak output currents The ADuM3223/ADuM4223 isolated half-bridge gate drivers use iCoupler® technology to provide independent, isolated outputs for driving the gates of the high-side and low-side IGBT and MOSFET devices used in motor control, switching power supplies, and industrial inverters. Combining high-speed CMOS with monolithic transformer technology, these isolation components provide precise timing, high reliability, and better overall performance than optocouplers or pulse transformers. Each output may be continuously operated up to 565 VPEAK relative to the input, thereby supporting low-side switching to negative voltages. The differential voltage between the high side and low side may be as high as 700 VPEAK. Switching at up to 1 MHz, the outputs can provide 4-A peak currents. The CMOS-compatible inputs provide 50-kV/μs common-mode transient immunity. The drivers operate with a 3.0-V to 5.5-V input supply, providing compatibility with lower voltage systems. Specified from –40°C to +125°C, they are available16-lead SOIC packages. Priced at $1.70 in 1000s, the ADuM3223 provides 3-kV rms isolation in a narrow body. Priced at $2.03 in 1000s, the ADuM4223 provides 5-kV rms isolation in a wide body. 2-channel Digital Isolators provide 1-kV rms isolation rating
The
ADuM7240 and
ADuM7241 two-channel digital
isolators use patented iCoupler®
technology to provide superior performance at lower cost than high-speed
optocouplers. The devices provide two independent isolation channels for
functional isolation. Both channels communicate in the same direction in the
ADuM7240, and in opposite directions in the ADuM7241.
Featuring 1‑kV rms isolation and greater than 15-kV/μs common-mode transient
immunity, A-/C-grades feature 250-/40-ns min pulse widths,
75‑/50-ns max propagation delay, and data rates from dc to 1/25 Mbps.
Refresh circuitry ensures correct dc levels in the absence of logic
transitions. The outputs default to logic high upon power up. The
power supplies on each side can range from 3 V to 5.5 V, allowing level
translation across the isolation barrier. Available in 8-lead SOIC packages,
the ADuM7240 are specified from –40°C to Search for more information on Interface May 2013 High-Side Power Switch with logic-level control
April 2013 Digital Controller for isolated power supplies
March 2013 High-efficiency eight-string white LED Driver for LCD backlight applications The ADD5201 white-LED driver for backlight applications uses a high-efficiency, current-mode step-up converter to provide eight regulated constant-current sources—each capable of driving up to 30 mA—to illuminate eight strings of series-connected LEDs. The ±1.5% current matching ensures uniform LED brightness. A PWM input supports 8-bit resolution to control LED dimming in the 3% to 100% range. Four modes of PWM dimming are available for controlling the phase delay between individual current sources: fixed delay, phase shift, no delay, and direct. Multiple safety protection features prevent damage during faults, including overvoltage, undervoltage, open circuit, short circuit, and overtemperature conditions; and soft start prevents inrush current at startup. Operating with a 6-V to 21-V supply, the ADD5201 draws 2.5 mA in normal mode and 40 µA in shutdown mode. Specified from –25°C to +85°C, it is available in a 28-lead LFCSP package and priced at $1.67 in 1000s. February 2013 4-A, 20-V synchronous Step-Down Regulator includes low-side driver The ADP2380 step-down dc-to-dc regulator incorporates a 44-mΩ power MOSFET and a low-side driver to implement a compact, high-efficiency integrated solution. Operating with an input voltage between 4.5 V and 20 V, the device can deliver up to 4 A at a regulated output voltage between 0.6 V and 90% of the input voltage. The switching frequency can be programmed between 250 kHz and 1.4 MHz, fixed at 290 kHz or 540 kHz, or synchronized to an external clock to minimize system noise. External compensation and soft start provide design flexibility, while the power good output provides reliable power sequencing. The robust device also includes undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown (TSD). Available in a 16-lead TSSOP package, the ADP2380’s junction temperature is rated at –40°C to +125°C. Price is $1.38 in 1000s. January 2013 20-V, 6-A synchronous step-down DC-to-DC Regulator
The
ADP2386 step-down dc-to-dc regulator integrates a
44-mΩ high-side power MOSFET and an 11-mΩ synchronous rectifier to implement
a compact solution that offers best-in-class efficiency for distributed
power applications with 12-V or 36V, 1-A synchronous step-down DC-to-DC Regulator The ADP2442 constant-frequency, current-mode, synchronous, step-down dc-to-dc regulator can drive loads up to 1 A with excellent line and load regulation characteristics. Its wide input voltage range makes it ideal for regulating power from a wide variety of sources; and its 50-ns minimum on time enables applications that require a very high step-down ratio. The output voltage can be adjusted from 0.6 V to 90% of the input voltage. The switching frequency is adjustable from 300 kHz to 1 MHz with an external resistor or synchronizable to an external clock to minimize system noise. Integrated low-resistance N-channel MOSFETs as both high-side and low-side devices operate with up to 94% efficiency. The regulator can be configured to operate in forced-fixed-frequency mode for low EMI or power-saving mode to reduce switching losses under light-load conditions. Hiccup mode protects the IC from short circuits and overcurrent conditions on the output. Other key features include input undervoltage lockout, thermal shutdown, and precision enable—which can also be used as a logic-level shutdown input. An accurate power-good output is useful for supply sequencing. Operating with a 4.5-V to 36-V input, the ADP2442 draws 1.7 mA when static and 10 µA in shutdown mode. Available in a 3-mm × 3-mm, 12-lead LFCSP package, it is rated for a −40°C to +125°C junction-temperature range and is priced at $1.83 in 1000s. December 2012 Step-up DC-to-DC Switching Converter operates at 2 MHz The ADP1607 high-efficiency, fixed-frequency, synchronous, step-up dc-to-dc converter is ideal for portable applications. Capable of supplying 1 A at voltages between 1.8-V and 3.3-V, it operates with a single supply as low as 0.8-V. The 2-MHz switching frequency enables the use of small-footprint, low-profile external components; and the synchronous rectification, internal compensation, fixed current limit, and current-mode architecture allow for excellent transient response and a minimal external part count. It features fixed-PWM and light-load-PFM mode options, true output isolation, thermal shutdown, and logic controlled enable. The ADP1607 draws 23 μA in the non-switching state and 60 nA in shutdown mode. Available in a 6-lead LFCSP package, it is specified from –40°C to +85°C and priced at $1.14 in 1000s. Dual LED Flash Driver provides two 750-mA outputs The ADP1660 compact, high-efficiency LED driver provides two 750-mA outputs in flash mode and up to 200 mA in torch mode to drive the white LED used in high-resolution camera phones, digital still cameras, and camcorders. Its 90% efficiency maximizes battery life, while improving picture quality in low-light environments. An on-chip synchronous boost converter operates at 3 MHz, requiring only a tiny, low-cost 1-μH inductor. Timing, output current, and status readback are programmed via the I2C-compatible interface. The robust design incorporates multiple safety features, including thermal-overload protection, inductor-fault detection, and LED short-/open-circuit protection. Operating with a single 2.7-V to 5-V supply, the ADP1660 consumes 5.3 mA in normal mode, 3 μA in standby mode, and 0.2 μA in shutdown mode. Available in a 12-ball WLCSP package, it is specified from –40°C to +125°C and priced at $0.95 in 1000s. Programmable Battery Charger with power path and USB compatibility The ADP5062 charger provides the means for mobile phones, digital cameras, and other portable devices with a mini USB port to be charged by a wall charger, car charger, or USB host port. Fully compliant with USB 3.0 and USB battery charging specification 1.2, it operates from a 4.0-V to 6.7-V input, while tolerating voltages from –0.5 V to +20 V, thus alleviating concerns about USB bus spiking during connection or disconnection. An internal FET between the dc-to-dc charger output and the battery provides isolation, allowing the system to be powered by the USB port even with a missing or dead battery. The current limit for optimal charging and USB compliance can be set to match the USB source. Available in a 20-lead LFCSP package, the ADP5062 is specified from –40°C to +125°C and priced at $1.50 in 1000s. November 2012 20-V, 4-A synchronous step-down DC-to-DC Regulator
The
ADP2384 step-down dc-to-dc regulator integrates a
44-mΩ high-side power MOSFET and an 11.6-mΩ synchronous rectifier to
implement a compact solution that offers best-in-class efficiency for
distributed power applications with 12-V or October 2012 Quad low-voltage, high-accuracy Microprocessor Supervisor The ADM8710 low-voltage, high-accuracy supervisory circuit monitors up to four system supply voltages. It offers two pretrimmed undervoltage thresholds—for monitoring 1.8-V and 3.3-V supply voltages—and two adjustable inputs that are programmed with external resistor dividers. This combination provides space savings and flexibility. If a monitored supply voltage falls below the minimum threshold, a single active-low output asserts, triggering a system reset. The open-drain output has a weak internal pull-up to the IN2 supply. The RESET signal remains low for 50 ms after all voltages rise above the selected threshold levels. The output remains valid as long as IN1 or IN2 exceeds 1 V. Available in a 6-lead SOT-23 package, the ADM8710 is specified from –40°C to +85°C and priced at $1.79 in 1000s. Synchronous step-down DC-to-DC Controller has wide input range The ADP1851 synchronous buck controller regulates a 2.75-V to 20-V input to provide an output voltage from 0.6-V up to 90% of the input voltage—with 1% accuracy and up to 25 A of output current. Normally operating in current mode with valley-current sensing to provide the fastest step response for digital loads, the device can also be configured as a low-noise, low-crosstalk voltage-mode controller for sensitive loads—or it can be configured to skip pulses in power-saving mode, reducing switching losses and improving efficiency at light load and standby conditions. A synchronization feature eliminates beat frequencies in multi-supply systems. The ADP1851 features accurate tracking, precision enable, and power good functions for sequencing, as well as undervoltage lockout and overvoltage-, overcurrent-, and overtemperature protection. Available in a 16-lead LFCSP package, it is specified from –40°C to +125°C and priced at $1.05 in 1000s. September 2012 1-A LED Flash Driver has I2C-compatible interface The ADP1649 compact, high-efficiency, white LED flash driver for high-resolution camera phones improves picture- and video quality in low-light environments. Integrating a programmable 1.5-/3-MHz synchronous inductive boost converter, an I2C-compatible interface, and a 1-A current source, its high switching frequency enables the use of a tiny, low-cost power inductor; and its current source permits LED cathode grounding for compact, thermally enhanced, low EMI layouts. By maximizing the efficiency of conversion from input power to LED power, the driver minimizes battery current drain during flash events. A programmable battery current limit safely maximizes LED current under all operating conditions; and two independent inputs quickly reduce the flash LED current and battery current during a power amplifier current burst. An I2C-compatible interface is available for timer- and current setting—and status bit readback. Operating with a 2.7-V to 5.0-V supply, the ADP1649 draws 5.3 mA when operating, 3 µA in standby mode, and 0.2 µA in shutdown mode. Available in a compact 12-ball WLCSP package, it is specified over the –40°C to +125°C junction-temperature range and priced at $0.90 in 1000s. August 2012 1-A synchronous step-down DC-to-DC Regulator operates at up to 36 V The ADP2441 constant-frequency, current-mode, synchronous, step-down dc-to-dc regulator can drive loads up to 1 A with excellent line and load regulation characteristics. Its wide input voltage range makes it ideal for regulating power from a wide variety of sources; and its 50-ns minimum on time enables applications that require a very high step-down ratio. The output voltage can be adjusted from 0.6 V to 0.9 × VIN. The switching frequency is adjustable from 300 kHz to 1 MHz with an external resistor. Integrated low-resistance N-channel MOSFETs as both high-side and low-side devices operate with up to 94% efficiency. At light-load conditions, the regulator operates in pulse-skip mode, reducing switching losses to improve energy efficiency. At medium- to heavy-load conditions, it operates in fixed-frequency pulse-width modulation mode to reduce electromagnetic interference. Hiccup mode protects the IC from short circuits and overcurrent conditions on the output. Programmable soft start limits inrush current during startup for a wide variety of load capacitances. Other key features include tracking, input undervoltage lockout, thermal shutdown, and precision enable—which can also be used as a logic-level shutdown input. An accurate power-good output is useful for supply sequencing. Operating with a 4.5-V to 36-V input, the ADP2441 draws 1.7 mA when static and 10 µA in shutdown mode. Available in a 3-mm × 3-mm, 12-lead LFCSP package, it is rated for a −40°C to +125°C junction-temperature range and is priced at $1.78 in 1000s. July 2012 Step-up DC-to-DC Switching Converter operates at 650 kHz/1.3 MHz The ADP1614 step-up converter is capable of supplying 4 A at voltages as high as 20 V, while operating with a single 2.5-V to 5.5-V supply. Integrating a 50-mΩ power switch with a current-mode, pulse-width-modulated regulator, it features 5-µV/mA load regulation. The pin-selectable operating frequency can be optimized for high efficiency or minimum external component size: at 650 kHz it provides 94% efficiency; and at 1.3 MHz its circuit implementation occupies the smallest space, making it 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 robust design includes undervoltage lockout (UVLO), thermal shutdown (TSD), and logic-controlled enable. The ADP1614 draws 5.5 mA in the switching state, 700 μA in the non-switching state, and 250 nA in shutdown mode. Available in a 10-lead LFCSP package, it is specified from –40°C to +125°C and priced at $0.95 in 1000s. Step-down DC-to-DC Controller with voltage tracking and synchronization The ADP1853 synchronous buck controller regulates a 2.75-V to 20-V input to provide an output voltage from 0.6-V up to 90% of the input voltage—with 1% accuracy and up to 25 A of output current. Normally operating in current mode with valley-current sensing to provide the fastest step response for digital loads, it can be configured as a low-noise, low-crosstalk voltage-mode controller for sensitive loads—or to skip pulses in power-saving mode, reducing switching losses and improving efficiency at light load and standby conditions. The device can be used as a master synchronization clock for the power system and for convenient synchronization between controllers, with slave devices phase-shifted from the master—to reduce input ripple current, improve EMI, and reduce the size of the input capacitors—or it can be configured as a slave device for current sharing. The ADP1853 features accurate tracking, precision enable, and power good functions for sequencing, undervoltage lockout, and overvoltage-, overcurrent-, and overtemperature protection. It draws 4.2 mA in PWM mode, 2.5 mA in PSM mode, and 100 µA in shutdown mode. Available in a 20-lead LFCSP package, it is specified from –40°C to +125°C and priced at $1.20 in 1000s. Programmable Battery Charger with power path and USB compatibility The ADP5061 charger enables mobile phones, digital cameras, and other portable devices with a mini USB port to be charged by a wall charger, car charger, or USB host port. Fully compliant with USB 3.0 and USB battery charging specification 1.2, it operates from a 4.0-V to 6.7-V input, while tolerating voltages from –0.5 V to +20 V, thus alleviating concerns about USB bus spiking during connection or disconnection. An internal FET between the dc-to-dc charger output and the battery provides isolation, allowing the system to be powered by the USB port even with a missing or dead battery. The current limit for optimal charging and USB compliance can be set to match the USB source. Available in a 20-ball WLCSP package, the ADP5061 is specified from –40°C to +125°C and priced at $1.50 in 1000s. June 2012 High-efficiency, high-voltage step-down DC-to-DC Converters drive 800-mA loads
The
ADP2370/ADP2371 high-efficiency buck converters
use high-speed current-mode, constant-frequency PWM control for excellent
stability and transient response. A power saving mode (PSM) reduces the
switching frequency under light-load conditions to ensure the longest
battery life in portable applications, but operation in PWM mode can be
forced when noise considerations are more important than efficiency. The
wide 3.2‑V to 15-V operating range allows the use of multiple stacked
alkaline, NiMH, and lithium cells. The robust design includes undervoltage
lockout, soft start, short-circuit and thermal-overload protection, a
power-good output, and internal compensation. Operating at 600 kHz or 1.2
MHz, or synchronized to an external clock, both devices include an internal
power switch and a synchronous rectifier to minimize part count and maximize
efficiency. The ADP2371 adds a function that automatically discharges
the output capacitor when the device is disabled. The ADP2370/71 draw 725 µA
in PWM mode, 13.5 µA in PSM mode, and 1.2 µA in shutdown mode.
Available in 8-lead LFCSP packages, they are specified from –40°C to 6-A, 20-V synchronous Step-Down Regulator includes low-side driver The ADP2381 step-down dc-to-dc regulator integrates a 44-mΩ power MOSFET and a low-side driver to implement a compact, high-efficiency solution. Operating with an input voltage between 4.5 V and 20 V, the device can deliver up to 6 A at a regulated output voltage between 0.6 V and 90% of the input voltage. The switching frequency can be programmed between 250 kHz and 1.2 MHz, fixed at 290 kHz or 550 kHz, or synchronized to an external clock to minimize system noise. External compensation and soft start provide design flexibility, while the power good output provides reliable power sequencing. The robust device also includes undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown (TSD). Available in a 16-lead TSSOP package, the ADP2381 is specified with a –40°C to +125°C junction temperature rating and priced at $1.68 in 1000s. Search for more information on Power Management Search for more information on Thermal Management June 2012 High-accuracy, low-noise Voltage References The ADR4520/25/30/33/40/50 precision, low-power, low-noise voltage references feature 0.5-ppm to 0.66-ppm p-p noise (typ) from 0.1 Hz to 10 Hz. Their B-/A-grade specs include 2‑/4‑ppm/°C max temperature coefficient, ±0.02/±0.04% max output voltage error, and 300-mV dropout voltage (VOUT ≥ 3V). Available in six output-voltage options from 2.048 V to 5.000 V, they can drive ±10-mA loads. The low output-voltage hysteresis and low long-term output-voltage drift improve lifetime system accuracy. Operating with a 3-V to 15-V supply, the ADR45xx draw 950 µA max. Available in 8-lead SOIC packages, they are specified from –40°C to +125°C and priced from $2.45 in 1000s. Search for more information on References RF, IF, Broadband, and Wireless May 2013 10-MHz to 10-GHz RMS Power Detector has 67-dB dynamic range
March 2013 1.65-GHz Clock Fanout Buffer includes frequency dividers and phase shifters The AD9508 clock buffer, designed for high-speed, low-jitter applications, accepts one single-ended or differential input clock and provides up to four differential LVDS/HSTL output clocks at up to 1.65 GHz or eight single-ended 1.8-V CMOS output clocks at up to 250 MHz. Each output can be divided by any integer up to 1024, and coarse phase adjustments can be made between the outputs. Pin strapping allows various configurations to be set at power up without the need for SPI or I˛C programming. Operating with a 2.375-V to 3.465-V supply, the AD9508 draws 185 mA with HSTL outputs, 152 mA with LVDS outputs, 141 mA with CMOS outputs, and 6 mA in power-down mode. Specified from –40°C to +85°C, it is available in a 24-lead LFCSP package and priced at $4.25 in 1000s. Low-cost Logarithmic Converter features 160-dB range The ADL5303 logarithmic detector is optimized to measure low-frequency signal power in fiber optic systems. Providing 160-dB dynamic range (100 pA to 10 mA), it achieves 0.1-dB log conformance from 1 nA to 1 mA. The laser-trimmed log slope of 10 mV/dB (200 mV/decade) can be adjusted to fit the available span, and an on-chip reference allows the intercept to be repositioned. An adaptive biasing scheme reduces photodiode dark current at very low light levels. The bandwidth, which is proportional to the input current, increases from 2 kHz at 1 nA to a maximum of 10 MHz. Operating with a 3.0-V to 5.5-V supply, the ADL5303 draws 45 mA in normal mode and 60 µA when disabled. Specified from –40°C to +85°C, it is available in a 16-lead LFCSP package and priced at $4.47 in 1000s. February 2013 Dual 4.5-GHz Differential Amplifier has ultrahigh dynamic range The ADL5566 dual, high-performance differential amplifier is optimized for IF and dc applications. It features a fixed 16-dB gain, 4.5-GHz bandwidth, 16-V/ns slew rate, 2.5‑ns settling time, 1.3‑nV/√Hz input noise, and –103-dB distortion at 10 MHz, making it an ideal driver for high- speed 16-bit ADCs. Configurable for differential or single-ended inputs and differential outputs, gains from 0 dB to 16 dB for a differential input and 0 dB to 14 dB for a single-ended input can be implemented using two external series resistors per amplifier. At 100 MHz, the well-matched device specifies 0.1-dB channel-to-channel gain error and 0.06° channel-to-channel phase error. Optimized for wide bandwidth, low distortion, and low noise, the device has excellent spurious-free dynamic range (SFDR) over frequency, making it the amplifier of choice for driving a wide variety of mixers, attenuators, and filters. Operating on a 2.8-V to 5.2-V supply, the ADL5566 draws 70 mA per amplifier at 3.3 V and 3.5 mA per amplifier when disabled. Available in a 24-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.05 in 1000s. December 2012 Fractional-N Frequency Synthesizer
The
ADF4153A fractional-N frequency
synthesizer—when combined with an external voltage-controlled oscillator
(VCO) and loop filter—forms a complete PLL. Used to implement local
oscillators in the up-conversion and down-conversion sections of wireless
receivers and transmitters, it comprises a low-noise digital phase-frequency
detector, precision charge pump, programmable reference divider, and
sigma-delta fractional-N divider. Accepting an external reference
frequency from 10 MHz to 250 MHz, it generates a fundamental output between
500 MHz and 4 GHz. The contents of three registers define the overall N
divider, where N = INT + (FRAC)/(MOD). Operating
with a 2.7‑V to 3.3-V power supply and a charge-pump supply of up to 5.5 V,
the ADF4153A draws 20 mA in normal mode and 1 µA in sleep
mode. Available in a 20‑lead FCSP package, it is specified from 18-GHz Microwave PLL Synthesizer The ADF41020 frequency synthesizer can be used to implement local oscillators as high as 18 GHz in the up-conversion and down-conversion sections of wireless receivers and transmitters. Comprising a low-noise, digital phase-frequency detector (PFD), a precision charge pump, a programmable reference divider, and high-frequency programmable feedback dividers (A, B, and P), it can be used with an external loop filter and voltage controlled oscillator (VCO) to implement a complete phase-locked loop (PLL). The synthesizer can be used to drive external microwave VCOs via an active loop filter. Its high bandwidth allows a frequency doubler stage to be eliminated, simplifying system architecture and reducing cost. The ADF41020 is software-compatible—and nearly pin compatible—with the ADF4106, ADF4107, and ADF4108 family of devices. Operating with a 2.85-V to 3.15-V supply, the ADF41020 draws 27 mA in normal mode and 1 µA in power-down mode. Available in a 20-lead FCSP package, it is specified from –40°C to +85°C and priced at $8.87 in 1000s. November 2012 Dual IF Receiver The AD6673 two-channel intermediate-frequency (IF) receiver supports multi-antenna applications in telecommunication systems that require high dynamic range, low power, and small size. The receiver includes two 11-bit, 250-MSPS, high-performance, multistage pipelined sampling ADCs and two digital noise-shaping requantizers (NSRs). A duty-cycle stabilizer (DCS) compensates for variations in the ADC clock, and an on-chip voltage reference simplifies designs. The integrated NSR circuitry improves SNR in a reduced frequency band within the Nyquist bandwidth. With a 250-MSPS sampling clock, the device achieves 76.3-dBFS SNR and 55-MHz bandwidth in 22% mode, and 73.5-dBFS SNR and 82.5-MHz bandwidth in 33% mode. With NSR disabled, the device achieves 66.6-dBFS SNR for the entire Nyquist bandwidth, useful in digital predistortion observation paths that require wider bandwidths. Multiplexed digitally processed output data is routed into two JESD204B serial output ports. The device digitizes a wide spectrum of IF frequencies, with each receiver designed for simultaneous reception from a separate antenna. This IF-sampling architecture greatly reduces component cost and complexity over traditional analog—or less-integrated digital—techniques. Flexible power-down options allow significant power savings. Programming and control data is communicated over a 3-wire, SPI-compatible serial interface. Operating with a single 1.7-V to 1.9-V supply, the AD6673 dissipates 707 mW with a sinusoidal input, 334 mW in standby mode, and 9 mW in power-down mode. Available in a 48-lead LFCSP package, it is specified from –40°C to +85°C and priced at $74.80 in 1000s. Radar Receive Path AFE includes mux, LNA, PGA, AAF, and ADC The AD8284 integrated analog front-end for radar receive paths contains a 4-channel differential multiplexer, a low-noise preamplifier, a programmable-gain amplifier, a third-order antialiasing filter, and a 12-bit, 80-MSPS analog-to-digital converter. The analog channel features 17-dB to 35-dB of gain, adjustable in 6-dB increments, 9-MHz to 15-MHz low-pass filter cutoff frequency, and 3.5-nV/√Hz input referred voltage noise. An additional analog input can be routed directly to the ADC. Available in a 64-lead TQFP package, the AD8284 is specified from –40°C to +105°C, qualified to the AEC-Q100 standard, and priced at $10.35 in 1000s. Low-jitter Clock Generator provides eight LVPECL outputs The AD9525 clock generator supports converter clock requirements for long-term evolution (LTE) and multicarrier GSM base station designs. It provides a low-power, low-jitter multioutput clock distribution function, along with an on-chip PLL that can be used with an external VCO or VCXO. The VCO input and eight LVPECL outputs can operate up to a frequency of 3.6 GHz. All outputs share a common divider with programmable division ratio of 1 to 6. A dedicated output, activated by a SPI write, provides a programmable signal for resetting or synchronizing a data converter. Operating on a single 3.3-V supply plus a VCO charge-pump supply of up to 5.5 V, the AD9525 dissipates 1.15 W in typical operation, 51 mW in power-down mode, and 13.2 mW in sleep mode. Available in a 48-lead LFCSP package, it is specified form –40°C to +85°C.and priced at $8.33 in 1000s. September 2012 100-MHz to 2400-MHz Quadrature Modulator includes VCO and fractional-N PLL
The
ADRF6755 quadrature modulator integrates an I/Q modulator,
fractional-N PLL synthesizer, voltage-controlled oscillator, and digitally
controlled RF attenuator within a compact 8-mm × 8-mm package—saving space,
reducing cost, and lowering complexity in VSAT (very small aperture
terminals) and other broadband satellite-communications applications.
Operating from 100 MHz to 2400 MHz, the device features 600-MHz modulation
bandwidth, 1-Hz resolution, 47-dB gain range with Four-input, two-PLL Adaptive Clock Translator for multiservice line cards The AD9559 low-loop-bandwidth multiservice line card adaptive clock translator provides jitter cleanup and synchronization for many applications, including synchronous optical networks (SONET/SDH), synchronous Ethernet, and OTN. It generates an output clock synchronizable to up to four external input references. The digital PLL reduces input time jitter and phase noise associated with the input references; and the digitally controlled loop and holdover circuitry continues to generate a low jitter output clock—even when all reference inputs have failed. Four pairs of clock outputs, at frequencies up to 1250 MHz, are individually configurable as one differential LVDS/HSTL output or two single-ended CMOS outputs. The device supports GR-1244 Stratum 3 stability in holdover mode, Telcordia GR-253 jitter specifications in up to OC-192 systems, and ITU-T G.8262 synchronous Ethernet slave clocks. Operating on 1.8-V and 3.3-V supplies, the AD9559 consumes 710 mW in a typical configuration and 75 mW in power-down mode. Available in a 72-lead LFCSP package, it is specified from –40°C to +85°C and priced at $19.26 in 1000s. June 2012 Wideband Synthesizer with integrated VCO The
ADF4351 combines a wideband PLL synthesizer and
an ultralow noise voltage-controlled oscillator (VCO). Using integer-N or
Search for more information on RF Components Search for more information on IF Components Search for more information on Broadband Products Search for more information on Wireless Products September 2012 High-voltage, latch-up proof, 16-channel CMOS Multiplexer
The
ADG5206 16:1 multiplexer offers guaranteed latch-up protection for
industrial, instrumentation, and automotive applications operating with a
single supply up to 40 V or dual supplies up to ±22 V. Latch-up, an
undesirable high-current state that persists until the power supply is
turned off, can lead to device failure. The switches feature 0.35‑pC charge
injection, 3.5‑pF off source capacitance and 200-pA max source off
leakage at 85°C. The ultralow capacitance and charge injection of these
switches make them ideal solutions for data acquisition and sample-and hold
applications, where low glitch and fast settling are required. In addition,
low-leakage analog switches ensure the droop rate in sampling circuits is
minimized. The switches also feature 270-ns switching speed and 60-MHz
bandwidth. Capable of handling signals from rail to rail, the switches
conduct equally well in both directions. The analog multiplexer switches one
of 16 inputs to a common output, or the reverse, as determined by four
address lines. All switches are turned off when the enable input goes low.
The ADG5206 has a 48‑V maximum supply-voltage rating, is fully specified
with +12-V, +36-V, ±15-V, and ±20-V supplies, and draws 45 µA. Available in
a High-voltage, latch-up proof, 8-channel differential CMOS Multiplexer
The
ADG5207 differential 8:1 multiplexer offers guaranteed latch-up
protection for industrial, instrumentation, and automotive
applications—operating with a single supply up to 40 V or dual supplies up
to ±22 V. Latch up, an undesirable high-current state that persists
until the power supply is turned off, can lead to device failure. The
switches feature 0.35‑pC charge injection, 3.5‑pF off source
capacitance and Switches and Multiplexers Home Page Search for more information on Switches Search for more information on Multiplexers
All trademarks or registered trademarks are the property of their respective owners. Prices, where indicated here, are recommended resale prices (U.S. Dollars) FOB U.S.A. Prices are subject to change without notice. For specific price quotations, please contact our sales offices or distributors.
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
