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as
Accelerometers, Gyros, and Temperature Sensors November 2009
October 2009
September 2009 Low-power, 3-axis Accelerometers in small, low-profile packages
The
ADXL327/ADXL325/ADXL326 complete, low-power,
analog-output, 3-axis accelerometers measure dynamic acceleration (motion,
shock, or vibration) and static acceleration (tilt or gravity) over
±2-/±5-/±16-g ranges, with
0.2/0.2/0.3% nonlinearity and July 2009 3-axis, ±2-/±4-/±8-/±16-g Digital Accelerometer
The
ADXL345 low-power, digital-output, 3-axis accelerometer measures dynamic
acceleration (motion, shock, and vibration) and static acceleration (tilt
and gravity) over a user-selectable ±2-/±4-/±8-/±16-g
range, with 10-/11-/12-/13-bit max resolution, 0.5% nonlinearity, and
0.01%/°C temperature stability. Output data rates from 6.25 Hz to 3200 Hz
can be selected to suit the application. Special built-in motion-detection
functions—including activity-, tap-, and free-fall sensing—can be mapped to
interrupt-output pins. A 32-level FIFO minimizes host processor
intervention. Data is available via SPI- and I2C-compatible
serial interfaces. Housed in a small, low-profile, June 2009 Low-power, programmable Impact Sensor and Recorder
The
ADIS16240 programmable impact sensor and recorder
provides 10-bit data proportional to: the acceleration along X-,
Y-, and Z axes;
peak acceleration along these
axes; supply voltage; on-chip temperature; and voltage on an auxiliary
input—as well as 12-bit data proportional to the peak sum-of-squares of
X-, Y-, and
Z-axis acceleration—with ±19-g
full-scale range and 51.4-mg/LSB
sensitivity. The programmable event recorder can be triggered internally,
providing continuously sampled data—or externally, based on two comparator
inputs. Each event captures acceleration data, as well as supply voltage,
temperature, and time. User-configurable functions include trigger
threshold, capture length, pretrigger data, data storage, sample rate, and
alarms. All data and commands are transmitted via an SPI-compatible serial
interface. Operating on a single 2.4-V to 3.6-V supply, the ADIS16240
consumes 1 mA in normal mode and
100 μA in sleep mode. Available in
a 12-mm × 12-mm, 112-ball PBGA package, it is specified from –40°C to Three-axis Accelerometer, Gyroscope, and Magnetometer
The
ADIS16400 complete inertial sensing system
includes: a 3-axis gyroscope with ±75°/s, ±150°/s, and ±300°/s range
settings; a 16-bit Digital Temperature Sensors are accurate to ±0.5°C
The
ADT7310 and
ADT7410 high-accuracy digital
temperature sensors comprise a band-gap temperature sensor and a sigma-delta
ADC to measure ambient temperature from –55°C to +150°C. The ADC resolution,
set to 13 bits by default (0.06°C resolution), can be changed to 16 bits
(0.0078°C resolution). The specified accuracy is ±0.5°C from May 2009 Three-axis Accelerometer, Gyroscope, and Magnetometer
The
ADIS16405 complete inertial sensing system
includes a 3-axis gyroscope with ±75°/s, ±150°/s, and ±300°/s range
settings; a Yaw-Rate Gyroscope The ADXRS622 gyroscope uses surface micromachining—the same process used to make high-volume, high-reliability accelerometers—to produce a low-cost, functionally complete angular-rate sensor—and integrates it with all of the signal-conditioning electronics required to produce a stable output voltage proportional to the angular rate about the Z-axis. The output is ratiometric to an external reference, with 7-mV/°/s sensitivity over a ±250°/s measurement range (5-V reference). Bandwidths from 0.01 Hz to 2500 Hz can be set by an external capacitor. The temperature output allows the sensor to be calibrated over temperature, and the device’s self-test inputs provide electromechanical excitation to test for proper operation of the sensor and signal-conditioning circuits. Designed for automobile rollover sensors, inertial measurement units, and platform stabilization, the device can survive 2000-g powered shocks. Operating on a single 4.75-V to 5.25-V supply, the ADXRS622 consumes 3.5 mA. Available in a 32-ball CBGA package, it is specified from –40°C to 105°C and priced at $19.98 in 1000s. March 2009 High-performance, wideband Accelerometer The ADXL001 single-axis iMEMS accelerometer is available with ±70-g, ±250-g, and ±500-g full-scale ranges. Sensitive to acceleration along the X-axis, it specifies 22-kHz bandwidth, 0.1% linearity, and 4-mg/rt-Hz noise. Its wide bandwidth, small size, and low power make it deal for monitoring shock and vibration in industrial, medical, and military applications. A self-test function verifies the full electromechanical signal chain. Operating on a single 3-V to 6-V supply, the ADXL001 consumes 2.5 mA at 3.3 V and 4.5 mA at 5 V. Available in an 8-lead LCC package, it is specified from –40°C to +125°C and priced at $35.04 in 1000s. Low-power, 3-axis, ±3-g Accelerometer in small, low-profile package The ADXL335 complete, low-power 3-axis accelerometer measures dynamic acceleration (motion, shock, or vibration) and static acceleration (tilt or gravity) over a ±3-g range, with 0.3% nonlinearity and 0.01%/°C temperature stability. Measurement bandwidth can be selected to suit the application, from 0.5 Hz to 1600 Hz for X- and Y- axes, and from 0.5 Hz to 550 Hz for the Z-axis. Operating on a single 1.8-V to 3.6-V supply, the ADXL335 consumes 350 μA. Available in a 16-lead LFCSP package, it is specified from –40°C to +85°C and priced at $2.38 in 1000s. Inertial Sensors have six degrees of freedom
The
ADIS16360 and
ADIS16365 are complete
six-degrees-of-freedom inertial sensing systems.
Each contains: a February 2009 Six-degrees-of-freedom Inertial Sensor
The
ADIS16364 complete six-degrees-of-freedom
inertial sensing system includes a 3-axis gyroscope with ±75°/s, ±150°/s,
and January 2009 Four-degrees-of-freedom Inertial Sensor
The
ADIS16300 complete inertial sensing system
includes a yaw-rate gyroscope with ±75°/s, ±150°/s, and ±300°/s range
settings; a Search for more information on MEMS Search for more information on Sensors November 2009
The ADA4692-4 quad low-power operational amplifier draws only 180 µA per amplifier while operating from a single 2.7-V to 5.5-V supply or ±1.35-V to ±2.5-V dual supplies. Featuring 500-μV offset, 1-μV/°C offset drift, 0.5-pA bias current, 90-dB common-mode rejection, 3.6-MHz bandwidth, 1.1-V/μs slew rate, 13-nV/rt-Hz noise, and 0.009% distortion, it is ideally suited for instrumentation, portable audio, and medical applications. The input range extends below the negative rail, and the output can swing to within 30 mV of either rail, providing true single-supply capability. Available in a 14-lead TSSOP package, the ADA4692-4 is specified from –40°C to +125°C and priced at $0.85 in 1000s. October 2009
September 2009 Programmable Current/Voltage Drivers for industrial applications The AD5750 and AD5750-1 programmable current/voltage output drivers condition the output of a low-voltage single-supply digital-to-analog converter to drive a current loop or voltage-controlled actuator in programmable logic controllers (PLC) or other industrial process-control applications. The AD5750 accepts inputs with a 4.096-V full-scale range (FSR), while the AD5750-1 has a 2.5-V full-scale input range. The current output is configurable to provide five output ranges (4–20 mA, 0–20 mA, 0–24 mA, ±20 mA, ±24 mA). A separate voltage output is configurable to provide four output ranges (0–5 V, 0–10 V, ±5 V, ±10 V). The unipolar current ranges have 2% over-range capability; the voltage outputs have 20% over-range capability. Two grades are available: the B-grade specifies ±0.03/±0.02% total unadjusted error (TUE) on current/voltage outputs; the A-grade specifies ±0.15/±0.05% TUE. The open- and short-circuit protected outputs can drive up to 1-kohm resistive loads, 1-µF capacitive loads, and 0.1-H inductive loads. Operating on ±12-V to ±24-V analog supplies and a 2.7-V to 5.5-V digital supply, the AD5750/-1 dissipate 108 mW. Available in 32-lead LFCSP packages, they are specified from –40°C to +105°C. A-/B-grades are priced at $2.45/$3.29 in 1000s. Dual low-power, unity-gain Difference Amplifier operates over wide supply range
The
AD8277 difference amplifier provides precise
signal conditioning in power-critical applications. Intended for unity-gain
differential applications, it can also be configured for single-ended gains
of −1, +1, or +2. Two grades are available: the
B-grade specifies 0.02% max gain
error, 1-ppm/°C max gain drift, 200-μV max offset, 2-μV/°C max offset drift,
and 86-dB min common-mode rejection; the
A-grade specifies 0.05% max gain
error, 5-ppm/°C max gain drift, 500-μV max offset, 5-μV/°C max offset drift,
and 80-dB min common-mode rejection. Both grades specify 550-kHz bandwidth
and 1.1-V/μs slew rate. The input common-mode range extends well beyond the
supplies, making the amplifier ideal for single-supply applications that
require a high common-mode voltage range. Powered by a single Low-power Difference Amplifier provides differential gains of ½ or 2 The AD8278 difference amplifier provides precise signal conditioning in power-critical applications. Intended for differential applications with gains of ½ or 2, it can also be configured for single-ended gains from –2 to +3. Two grades are available: the B-grade specifies 0.02% max gain error, 1-ppm/°C max gain drift, 100-μV max offset, 1-μV/°C max offset drift, and 80-dB min common-mode rejection; the A-grade specifies 0.05% max gain error, 5-ppm/°C max gain drift, 250-μV max offset, 5-μV/°C max offset drift, and 74-dB min common-mode rejection. Both grades specify 1-MHz bandwidth and 1.4-V/μs slew rate. The input common-mode range extends well beyond the supplies, making the amplifier ideal for single-supply applications that require a high common-mode voltage range. Powered by a single 2.5-V to 36-V supply or dual ±2-V to ±18-V supplies, the AD8278 draws 200 µA max. Specified from –40°C to +85°C, it operates at up to +125°C. Available in 8-lead SOIC and MSOP packages, A-/B-grades are priced at $0.95/$1.45 in 1000s. Dual low-power, precision Operational Amplifier has rail-to-rail outputs
The
AD8622 dual operational amplifier specifies 125
μV max offset voltage, 1.2-μV/°C max drift, 200-pA bias current, 135-dB
common-mode rejection, 137-dB open-loop gain, 600-kHz bandwidth, 0.48-V/μs
slew rate, and 11-nV/rt-Hz noise. The output, which can swing to within 30
mV of either rail, can drive 40-mA loads. Operating with dual ±2-V to ±18-V
supplies, the AD8622 consumes 175-μA per amplifier. Available in 8-lead MSOP
and SOIC packages, it is specified from Dual micro-power Operational Amplifier has rail-to-rail inputs and outputs The ADA4051-2 dual high-precision, micro-power CMOS operational amplifier features 15-µV max offset, 100-nV/°C max offset drift, 200-pA max bias current, 110-dB min common-mode rejection, and 110-dB min power-supply rejection—ideal characteristics for conditioning low-level signals from pressure-, position-, and temperature sensors. The inputs can swing beyond the rails, and the outputs can swing to within 10 mV of the rails—making the amplifier well suited to portable, battery-powered instruments. Operating on a single 1.8-V to 5.5-V supply, the ADA4051-2 consumes 17 µA max per amplifier. Specified from –40°C to +125°C, it operates at up to +150°C. Available in an 8-lead MSOP package, it is priced at $1.47 in 1000s. Quad low-power, JFET-input Operational Amplifier The ADA4062-4 quad, low-power, JFET-input op amp consumes only 165 μA per amplifier while operating on ±4-V to ±18-V supplies. Featuring 750 μV offset, 4-μV/°C offset drift, 2-pA bias current, 90-dB common-mode rejection, 83-dB large-signal voltage gain, 90-dB power-supply rejection, 1.4-MHz bandwidth, and 3.3-V/μs slew rate, it is ideal for industrial process control, instrumentation, active filters, and other low-power data-acquisition applications. Available in a 14-lead TSSOP package, it is specified from –40°C to +125°C and priced at $1.21 in 1000s. Quad low-power Operational Amplifier features rail-to-rail inputs and outputs
The
ADA4091-4 quad low-power op amp specifies 45 μV
offset, 2.5-μV/°C offset drift, 100-dB common-mode rejection, 113-dB
large-signal voltage gain, 126-dB power-supply rejection, 1.22-MHz
bandwidth, 0.46-V/μs slew rate, and rail-to-rail input- and output swings,
making it ideal for industrial process control, portable communications
equipment, power-supply control, and sensor signal conditioning. On-chip
over-voltage protection prevents phase inversion and excessive input-current
flow during transient- or fault conditions, reduces the number of external
components needed to ensure stable operation, and simplifies system design
and error analysis. It protects up to 12 V above and below the supply rails
at ±15 V—and 25 V above and below the supply rails at ±5 V. Operating on a
single 2.7-V to Micro-power Operational Amplifier features zero crossover distortion The ADA4505-1 micro-power operational amplifier features rail-to-rail input- and output range and zero crossover distortion, ensuring true single-supply operation. It specifies 500-μV offset, 0.5-pA bias current, 105-dB common-mode rejection, 110-dB power-supply rejection, and 120-dB open-loop gain, making it ideal for remote sensors, handheld instrumentation, and other battery-powered applications. Operating on a single 1.8-V to 5-V supply or dual ±0.9-V to ±2.5-V supplies, the ADA4505-1 consumes 10.5 μA maximum. Available in a 5-lead SOT-23 package, it is specified from –40°C to +125°C and priced at $0.55 in 1000s. High-speed, low-noise JFET-input Operational Amplifier The
ADA4627-1 high-speed, low-noise, JFET-input op
amp features 19-MHz bandwidth, 56-V/μs slew rate, and 4.8-nV/rt-Hz broadband
noise. Two grades are available: the B-grade
specifies 200 μV max offset, 2-μV/°C max offset drift, 1-pA bias current,
Dual low-power, low-noise, wideband Operational Amplifier has rail-to-rail output The ADA4691-2 dual low-power operational amplifier draws only 180 µA per amplifier while operating from a single 2.7-V to 5.5-V supply or dual ±1.35-V to ±2.5-V supplies. Each amplifier can be powered down independently, reducing power consumption to 10 nA in shutdown mode. Featuring 500-μV offset, 0.8-μV/°C offset drift, 0.5-pA bias current, 70-dB common-mode rejection, 3.6-MHz bandwidth, 1.1-V/μs slew rate, 16-nV/rt-Hz noise, and 0.006% distortion, the amplifier is ideally suited for instrumentation, portable audio, and medical applications. The input range extends below the negative rail, and the output can swing to within 30 mV of either rail, providing true single-supply capability. Specified from –40°C to +125°C, and available in a 10-lead LFCSP package, it is priced at $0.57 in 1000s. July 2009 Instrumentation Amplifier has wide supply range, rail-to-rail output The AD8227 instrumentation amplifier requires only a single external resistor to set any gain between 5 and 1000. The input range extends below the negative supply and the output swings from rail to rail, allowing small ground-referenced signals to be amplified without a negative supply. Designed to connect with real-world sensors, the inputs are protected against voltages up to ±40 V ± Vs. Two grades are available. Specifications for B-/A-grades include 100-/200-μV max input offset, 500-/1000-μV max output offset, 0.02/0.04% gain error, 100-/90-dB CMR at G=5, 110-/105-dB CMR at G=1000, and 250-Hz bandwidth. Operating on single 2.2-V to 36-V or dual ±1.5-V to ±18-V supplies, the AD8227 draws 350 μA. Available in 8-lead MSOP and SOIC packages, it is specified from –40°C to +125°C and priced at $2.29/$1.38 in 1000s. June 2009 Micropower Instrumentation Amplifier has no crossover distortion
The
AD8236 micropower instrumentation amplifier is
the industry’s lowest power device. Its 40-μA max supply current and 1.8-V
to Quad 235-MHz Variable-Gain Amplifier with differential outputs
The
AD8264 variable-gain amplifier provides four
independent channels with 24-dB voltage-controlled gain range, Low-power, unity-gain Difference Amplifier operates over wide supply range The AD8276 difference amplifier provides precise signal conditioning in power-critical applications. Intended for unity-gain differential applications, it can also be configured for single-ended gains of −1, +1, +2, or +½. Two grades are available: the B-grade specifies 0.02% max gain error, 1-ppm/°C max gain drift, 200-μV max offset, 2-μV/°C max offset drift, and 86-dB min common-mode rejection; the A-grade specifies 0.05% max gain error, 5-ppm/°C max gain drift, 500-μV max offset, 5-μV/°C max offset drift, and 80-dB min common-mode rejection. Both grades specify 550-kHz bandwidth and 1.1-V/μs slew rate. The input common-mode range extends well beyond the supplies, making the amplifier ideal for single-supply applications that require a high common-mode voltage range. Powered by a single 2.5-V to 36-V supply or ±2-V to ±18-V dual supplies, the AD8276 draws 220 µA max. Specified from –40°C to +85°C, it operates up to +125°C. Available in 8-lead SOIC and MSOP packages, it is priced at $1.00 in 1000s. Dual, low-power, low-noise, wideband Operational Amplifier has rail-to-rail output The ADA4692-2 dual low-power operational amplifier draws only 165 µA per amplifier while operating from a single 2.7-V to 5.5-V supply or ±1.35-V to ±5.5-V dual supplies. Featuring 500-μV offset, 0.6-μV/°C offset drift, 0.5-pA bias current, 90-dB common-mode rejection, 4-MHz bandwidth, 2-V/μs slew rate, 15-nV/rt-Hz noise, and 0.003% distortion, it is ideally suited for instrumentation, portable audio, and medical applications. The input range extends below the negative rail, and the output can swing to within 30 mV of either rail, providing true single-supply capability. Available in an 8-lead SOIC package, the ADA4692-2 is specified from –40°C to +125°C and priced at $0.55 in 1000s. Low-power differential ADC Drivers have pin-selectable gains of 1, 2, or 3
The
ADA4950-1 single- and
ADA4950-2 dual low-power
differential ADC drivers—designed to interface to high-performance ADCs
having up to 16-bit resolution—feature 750-MHz bandwidth, 2900-V/μs slew
rate, 9-ns settling time, 108-dBc SFDR at 10 MHz, and 9.2-nV/t-Hz noise.
The common-mode output voltage can be set to match the input requirement of
the ADC. Differential gains of 1, 2, or 3 are selectable by externally
connecting to on-chip gain-setting resistors. Operating on a single 3-V to
11-V supply or dual ±1.5-V to ±5.5-V supplies, the ADA4950-1/-2 consume 9.5 mA per channel in
normal mode and 700-μA in
power-down mode. Available in Variable-Gain Amplifier provides 30-dB gain-control range from 1 MHz to 1.2 GHz
The
ADL5331 high-performance voltage-controlled
variable-gain amplifier is optimized for controlling output power in
cellular base stations, CATV distribution, and RF/IF transceivers. Featuring
high linearity, low noise, and a fully differential signal path, it operates
from 1 MHz to 1.2 GHz, providing amplification or attenuation over a 30-dB
range. The linear-in-dB gain-control input provides a Ultralow-distortion RF/IF Differential Amplifiers
The
ADL5561/ADL5562 ultralow-distortion RF/IF
differential amplifiers feature 2.9-/3.3-GHz bandwidth, 2.1-nV/t-Hz noise,
9.8-V/ns slew rate, 3-ns settling time, making them ideal for driving
high-speed, high-resolution ADCs. At May 2009 Very fast, single-supply, rail-to-rail Voltage Comparator has LVDS outputs
The
AD8465 high-speed, low-noise, automotive grade
comparator features a 1.6 ns propagation delay, with 1 ps rms random jitter
and less than 50 ps typical overdrive and slew rate dispersion. The input
range extends from VEE − 0.5 V to VCCI + 0.2 V. This
flexibility allows a −0.5 V to +2.7 V input signal range when operating on a
single 2.5-V supply up to a −0.5 V to +5.7 V input signal range when
operating on a single 5.5-V supply. Split input/output supplies, with no
sequencing restrictions, support a wide input
signal range with greatly reduced power consumption. Other features include
LVDS-compatible output drivers, TTL/CMOS latch inputs, and adjustable
hysteresis and/or shutdown inputs. The LVDS-compatible output stage is
designed to drive any standard LVDS input. Available in a March 2009 Instrumentation Amplifier has wide supply range, rail-to-rail output The AD8226 instrumentation amplifier requires only a single external resistor to set any gain between 1 and 1000. The input range extends below the negative supply and the output swings from rail to rail, allowing small ground-referenced signals to be amplified without a negative supply. Designed to connect with real-world sensors, the inputs are protected against voltages up to ±40V±Vs. Specifications include 200-μV input offset, 1000-μV output offset, 0.04% gain error, 80-dB CMR at G=1, 105-dB CMR at G=1000, and 1.5-MHz bandwidth. Operating on a single 2.2-V to 36-V supply or dual ±1.1-V to ±18-V supplies, the AD8226 draws 350 μA. Available in 8-lead MSOP and SOIC packages, they are specified from –40°C to +125°C and priced from $1.40 in 1000s. Precision programmable-gain Difference Amplifier
The
AD8271 low-distortion, programmable-gain
difference amplifier comprises a precision op-amp and seven laser-trimmed
gain-setting resistors, enabling user-selectable differential gains of 0.5,
1, or 2. It can also be configured in over 40 single-ended configurations,
with gains ranging from −2 to +3. Two grades are available: the
B-grade specifies 0.02% max gain
error, 2-ppm/°C max gain drift, 600-μV max offset, and 80-dB min common-mode
rejection; the
A-grade specifies 0.05% max gain error,
10-ppm/°C max gain drift, 1000-μV max offset, and 74-dB min common-mode
rejection. Both grades specify –110-dB harmonic distortion, 15-MHz
bandwidth, and 30-V/μs slew rate. This combination of speed and precision
makes the device ideal for driving ADCs, building instrumentation
amplifiers, level shifting, and automatic test equipment. Operating on a
single 5-V to 36-V supply or dual ±2.5-V to 1-MHz Operational Amplifier has wide supply range, rail-to-rail inputs and outputs The ADA4665-2 dual CMOS operational amplifier features rail-to-rail inputs and outputs. It is optimized for low-power applications, as well as process control, instrumentation, and signal-conditioning. Its specifications include 1-pA max input bias current, 3-μV/°C offset drift, 1.2-MHz bandwidth, and 1-V/μs slew rate. Operating on a single 5-V to 16-V supply, or dual ±2.5-V to ±8-V supplies, the ADA4665-2 consumes 290 μA per amplifier. Available in 8-lead SOIC and MSOP packages, it is specified from –40°C to +125°C and priced at $0.70 in 1000s. January 2009 Precision Instrumentation Amplifier includes auxiliary amplifiers and resistors The AD8295 highly integrated instrumentation amplifier is designed to save space in precision analog front-ends. Comprising a high-performance instrumentation amp, two general-purpose op amps, and two matched resistors, it makes PCB routing easy and efficient. The instrumentation amplifier features 60-μV input offset, 350-μV output offset, 90-dB CMR, and 8-nV/rt-Hz noise. A single external resistor sets the gain between 1 and 1000. The op amps feature 20-μV offset and 100-dB CMR. The 20-kohm resistors are matched to 0.03% with a 1-ppm/°C ratio temperature coefficient. Operating on ±2.3-V to ±18-V supplies, the AD8295 consumes 2 mA. Specified from –40°C to +85°C, it is available in a 16-lead LFCSP package and priced from $2.89 in 1000s. 36-V precision single- and dual Operational Amplifiers feature 1.8-nV/rt-Hz noise The single ADA4004-1 and dual ADA4004-2 precision operational amplifiers feature 40-μV offset voltage, 40-nA input bias current, 400-V/mV open-loop gain, 12-MHz bandwidth, and 1.8-nV/rt-Hz voltage noise. Designed on ADI’s advanced iPolar™ fabrication process, they are ideal for use in filters, precision instrumentation, and industrial-control applications. Specified from –40°C to +125°C, they operate on ±5-V to ±15-V supplies, consuming 2 mA max per amplifier. The ADA4004-1, available in 8-lead SOIC and 5-lead SOT-23 packages, is priced at $1.75 in 1000s. The ADA4004-2, available in 8-lead SOIC and MSOP packages, is priced at $2.65 in 1000s. Low-noise, 1-GHz single- and dual Operational Amplifiers
The single
ADA4817-1 and dual
ADA4817-2
FastFET™ ultrahigh-speed
operational amplifiers feature 1-GHz bandwidth, 870-V/μs slew rate, 9-ns
settling time to 0.1%, 1.5-pF common mode input capacitance, 4-nV/rt-Hz
voltage noise,–90-dBc distortion at 10 MHz, 2-mV offset voltage max, and
unity-gain stability, making them ideal for data acquisition front ends,
wideband photodiode preamps, and active filters. Designed on ADI’s
proprietary XFCB fabrication process, they can supply 70-mA output current.
Specified from –40°C to +105°C, they operate on a single 5-V to 10-V supply
or dual ±2.5-V to ±5-V supplies, consuming 19 mA per amplifier in
normal mode and 1.5 mA in
power-down mode. The ADA4817-1,
available in an Triple high-speed, single-supply Operational Amplifier provides rail-to-rail outputs The ADA4855-3 rail-to-rail op amp features 410-MHz bandwidth, 870-V/μs slew rate, 5.3-ns settling time to 0.1%, 0.01% differential gain error, and 0.01° differential phase error, making it ideal for professional and consumer video, imaging, and active filters. The input common-mode range extends below ground, and the outputs can swing to within 100 mV of either rail, providing true single-supply operation. Operating on a single 3-V to 5.5-V supply, the ADA4855-3 consumes 7.8 mA per amplifier in normal mode and 1.1 mA in power-down mode. Specified from –40°C to +105°C, it is available in a 16-lead LFCSP package and priced at $1.39 in 1000s. Triple high-speed, single-supply Operational Amplifier includes charge pump
The
ADA4858-3 op amp features 600-MHz bandwidth,
600-V/μs slew rate, 18-ns settling time to 0.1%, 0.01% differential gain
error, and 0.02° differential phase error, making it ideal for professional
and consumer video, imaging, and active filters. The on-chip charge pump
eliminates the need for a negative supply, while allowing a –1.8-V to +3.8-V
input common-mode range and a –1.7-V to +3.7-V output swing. Operating on a
single 3-V to 5.5-V supply, the ADA4858-3 consumes 42 mA total, including
the charge pump, and 4.25 mA in
power-down mode. Specified from Ultralow-distortion, current-feedback, differential ADC Drivers
The single
ADA4927-1 and dual
ADA4927-2 high-speed,
ultralow-distortion, current-feedback, differential ADC drivers are designed
to interface directly with high-performance ADCs having up to 16-bit
resolution from dc to 100 MHz. They feature 2.3-GHz bandwidth, 5000-V/μs
slew rate, 10-ns settling time to 0.1%, 103-dBc SFDR at 10 MHz, and December 2008 Low-cost, single-supply Instrumentation Amplifier
The
AD8223 single-supply instrumentation amplifier
provides accurate gain in a wide range of battery-powered applications—such
as medical instrumentation, thermocouple amplifiers, and industrial process
control—that require low noise, wide dynamic range, and good common-mode
rejection. Its default gain is 5, but a single external resistor can be used
to set gains up to 1000, with 0.1% gain error and 50-ppm nonlinearity. The
AD8223 is available in two grades: the
A-grade specifies 250-μV input offset, 1500-μV output offset, 80-dB CMR
at G=5 (up to 200 Hz), and 16-bit ADC Driver provides level translation, gain of 0.2 The AD8275 difference amplifier includes internal gain-setting resistors that translate ±10-V signals to 0-to-4-V levels for interfacing high-level signals with a single-supply ADC. The B-grade features 0.024% max gain error, 1-ppm/°C max gain drift, 500-μV max offset, 86-dB min common-mode rejection, –106-dB harmonic distortion, 15-MHz bandwidth, and 25-V/μs slew rate, making it ideal for building instrumentation amplifiers, level translators, and automatic test equipment. Operating on a single 3.3-V to 15-V supply, the AD8275 consumes 1.9 mA. Available in an 8-lead MSOP package, it is specified from –40°C to +85°C and priced from $1.60 in 1000s. Operational Amplifier has ultralow noise and distortion The AD8597 operational amplifier achieves ultralow distortion (–120 dB THD+N) and ultralow noise (1.1 nV/rt-Hz), making it an ideal for use as an audio preamp, ADC driver, or DAC buffer. Unity-gain stable, its specifications include 10-μV offset, 0.8-μV/°C offset drift, 135-dB common-mode rejection, 116-dB large-signal voltage gain, 140-dB power-supply rejection, 10-MHz bandwidth, and 16-V/μs slew rate. Operating on ±4.5-V to ±18-V supplies, the AD8597 consumes 4.8 mA. Available in 8-lead SOIC and LFCSP packages, it is specified from –40°C to +125°C and priced at $2.25 in 1000s. Dual, low-power, JFET-input Operational Amplifier
The
ADA4062-2 dual, low-power, JFET-input op amp
features 500-μV offset, 4-μV/°C offset drift, 2-pA bias current, Dual, low-power Operational Amplifier features rail-to-rail inputs and outputs
The
ADA4091-2 dual, low-power op amp specifies 45-μV
offset, 2.5-μV/°C offset drift, 95-dB common-mode rejection, 116-dB
large-signal voltage gain, 100-dB power-supply rejection, 1.2-MHz bandwidth,
0.5-V/μs slew rate, and rail-to-rail input and output swings, making it
ideal for industrial process control, portable telecommunications equipment,
power supply control, and sensor signal conditioning. On-chip over-voltage
protection prevents phase-inversion and excessive input current flow during
transient or fault conditions, reduces the number of external components
needed to ensure stable operation, and simplifies system design and error
analysis. It protects up to 12 V above and below the supply rails at ±15 V
and 25 V above and below the supply rails at ±5 V. Operating on a single 3-V
to 36-V supply, or dual ±1.5-V to ±18-V supplies, the ADA4091-2 consumes 180
μA per amplifier. Available in an Low-power Differential ADC Drivers
The single
ADA4932-1 and dual
ADA4932-2 low-power
differential ADC drivers are designed to interface directly with
high-performance ADCs having up to 16-bit resolution. They feature 560-MHz
bandwidth, 2800-V/μs slew rate, 9-ns settling time, 100-dBc SFDR at 10 MHz,
and 3.6-nV/t-Hz noise. The drivers are stable for fractional differential
gains, unity gain, and gains greater than 1; gain is set by two pairs of
external resistors. The common-mode output voltage can be set to match the
input of the ADC. Operating on a single 3-V to 11-V supply or dual ±1.5-V to
±5.5-V supplies, the ADA4932-1/-2
consume 8.8 mA per channel in normal
mode and 200-MHz Pin Electronics IC includes driver, comparator, active load, and PMU The
ADATE304 pin electronics
IC performs the
automatic-test-equipment (ATE) functions of driver, comparator, and active
load (DCL)—at speeds of up to 200 MHz. It also provides a per-pin parametric
measurement unit (PMU) and dc level setting. The PMU can force or measure
voltage or current—and measure voltage or current—on a per-pin basis.
Programmable force/measure current ranges include ±2 μA, ±20 μA, ±200 μA, ±2 mA, and ±32 mA. The proprietary driver features three active-mode output
levels—logic high, logic low, and term—and a high-impedance inhibit mode.
Its –2-V to +6-V voltage range accommodates a wide variety of test devices.
A high-voltage buffer can source voltages up to 13.5 V. High-speed window-
and differential comparators facilitate functional testing. On-chip 14-bit
DACs set the dc levels for the driver, comparator, and active load (DCL); a
16-bit DAC provides precision levels for the PMU. A dual device, it can be
used to support two single-ended drive/receive channels or a single
differential channel. Operating on Amplifiers and Comparators Home Page Search for more information on Amplifiers Search for more information on Comparators August 2009 Low-power Precision Analog Microcontrollers include two 24-bit ADCs The ADuC7060 and ADuC7061 low-power, 24-bit, 8-ksps single-chip data-acquisition systems integrate two multichannel sigma-delta A/D converters, a 16-/32-bit RISC microcontroller (MCU), flash memory, and a host of peripherals. The primary ADC, which is preceded by a programmable-gain amplifier (PGA) and 5-channel mux, features ±15-ppm integral nonlinearity (INL) and a selectable ±2.34-mV to ±1.2-V full-scale input range. The auxiliary ADC, which is preceded by a buffer and 8-channel multiplexer, features ±20-ppm INL with a 1.2-V input range. The analog peripherals include a 14-bit buffered voltage-output DAC, programmable sensor-excitation currents, precision 1.2-V, 10-ppm/°C reference, and a temperature sensor. An ARM7TDMI MCU, operating from an on-chip oscillator and PLL, offers up to 10-MIPS peak performance. Program and data are stored in 4 kB of SRAM and 32 kB of nonvolatile memory. The digital peripherals include four timers, up to six 16-bit PWMs, a vector-interrupt controller, up to 14 GPIO pins, a UART, SPI port, and I2C interface. JTAG-based debug and the QuickStart development system facilitate system design and speed time to market. Specified from –40°C to +125°C, the devices operate on a single 2.5-V supply, consuming 2.8 mA with a 1-MHz core clock and both ADCs active and 55 µA in power-down mode. The ADuC7060, available in a 48-pin package, is priced at $4.70 in 1000s; the ADuC7061, available in a 32-lead LFCSP package, is priced from $3.40 in 1000s. December 2008 Intelligent Battery Sensor for 12-V automotive applications
The
ADuC7036 precision battery sensor precisely
monitors a battery’s voltage, current, and temperature—in order to
characterize its state-of-health
(SOH) and state-of-charge (SOC) in
automotive applications. The device integrates two simultaneous-sampling
16-bit, 8-kHz sigma-delta ADCs, a temperature sensor, a 5-ppm/°C voltage
reference, 96 Kbytes of flash memory, 6 Kbytes or RAM, and all necessary
signal-conditioning functions. On-chip regulation and attenuation facilitate
operation directly from 3.5-V to 18-V car batteries. The on-chip ARM7TDMI
16-/32-bit, 20-MHz RISC microcontroller processes the acquired data; the LIN
transceiver communicates the battery’s SOH and SOC data to the car’s
electronic control unit (ECU). The ADuC7036 consumes 10 mA in
normal mode and 300 μA in
power-down mode. Available in a
Analog Microcontrollers Home Page Search for more information on Analog Microcontrollers Analog-to-Digital Converters (ADCs) November 2009
September 2009 4-channel, 24-bit, 4.8-kHz, ultralow-noise Sigma-Delta ADC with PGA
The
AD7193 complete, low-noise, high-precision analog
front-end—for weigh scales, strain gauges, and pressure sensors—includes a
multiplexer, a programmable-gain amplifier, a 24-bit sigma-delta ADC, and a
temperature sensor. It can be configured for four differential or eight
pseudo-differential inputs; a channel sequencer allows sequential conversion
of each enabled input. The PGA gain can be set between 1 and 128; the total
signal chain has only Dual 10-/12-/14-bit pipelined ADCs sample at up to 80 Msps The AD9204/AD9231/AD9251 dual pipelined A/D converters provide 10-/12-/14-bit resolution with no missing codes at sampling rates to 80 Msps, making them ideal for ultrasound equipment, broadband communications, and battery-powered instruments. The fully differential analog inputs accept signals with a 1-V p-p to 2-V p-p full-scale range, at frequencies up to 700 MHz. Output data is available from two CMOS-compatible parallel ports. Functionally complete, the devices include a programmable clock divider, clock duty-cycle stabilizer, voltage reference, SPI-compatible port, and programmable test pattern generation. They provide 61-/70-/74-dBFs signal-to-noise ratio (SNR), 75-/85-/93-dBc spurious-free dynamic range (SFDR), and ±0.5-LSB differential nonlinearity (DNL). Operating on a 1.7-V to 1.9-V analog supply and a 1.7-V to 3.6-V digital supply, the AD9204/31/51 dissipate 145 mW at 80 Msps, 37 mW in standby mode, and 2.2 mW in power-down mode. Available in 64-lead LFCSP packages, they are specified from –40°C to +85°C and priced from $5.00/$10.00/$18.50 in 1000s. Dual continuous-time, Sigma-Delta Modulator samples at 640 Msps The AD9267 dual continuous-time sigma-delta modulator achieves 88-dB dynamic range over a 10-MHz input bandwidth. Its resistive input eases the requirements of the driver amplifier; its 5th-order loop filter reduces the need for an external anti-aliasing filter; and its integrated PLL clock multiplier and voltage reference make it easy to use. The data is provided as 4-bit LVDS at 640 Msps. A data output clock is provided for proper synchronization. Additional digital filtering is required to remove out-of-band noise and reduce the sampling rate. Operating on a single 1.7-V to 1.9-V supply, the AD9267 dissipates 503 mW at 640 Msps, 110 mW in power-down mode, 9 mW in standby mode, and 3 mW in sleep mode. Available in a 64-lead LFCSP package, it is specified from –40°C to +85°C and priced at $40.80 in 1000s. 8-channel Analog Front-Ends include LNA, VGA, AAF, ADC, and I/Q demodulator The AD9276/AD9277 analog front-ends for medical imaging, ultrasound, and radar applications comprise eight time-gain control (TGC) channels—each consisting of a low-noise preamplifier (LNA), a variable-gain amplifier (VGA), an anti-aliasing filter (AAF), and a 12-/14-bit, 80-/50-Msps analog-to-digital converter (ADC). Each fully differential channel provides 42-dB gain range, 51.3-dB maximum gain, 70-/73-dB signal-to-noise ratio (SNR), 100-MHz bandwidth, and 0.75-nV/rt-Hz input-referred noise specifications. The devices also include a quadrature (I&Q) demodulator with programmable phase rotation for use in CW Doppler mode. Operating on 1.7-V to 1.9-V and 2.7-V to 3.6-V supplies, the AD9276/77 dissipate 1660 mW in TGC mode, 750 mW in CW mode, and 5 mW in power-down mode. Available in 100-lead TQFP packages, they are specified from –40°C to +85°C and priced at $62.00/$68.00 in 1000s. August 2009 128-channel, 24-bit Current-to-Digital Converter The 128-channel ADAS1128 current-to-digital converter achieves 24-bit resolution at a 20-ksps sampling rate. It comprises 128 low-noise current integrators and simultaneous-sampling track-and-hold amplifiers multiplexed into two high-resolution ADCs. The current inputs directly interface with photodiodes or other low-current sensors; a resistive divider can be used with high-current- or voltage inputs. Data is available via a self-clocked LVDS serial interface that can be connected without glue to a field-programmable gate array (FPGA). Available in a compact 10-mm × 10-mm mini-BGA (ball grid array) package, the ADAS1128 is priced at $192.00 in 250-unit quantities. June 2009 24-bit ultralow-noise Sigma-Delta ADC has pin-programmable gain and data rate The AD7191 complete, low-noise, high-precision analog front-end for weigh scales, strain gauges, and pressure sensors includes a multiplexer, a programmable-gain amplifier, a 24-bit sigma-delta ADC, and a temperature sensor. Pin programming chooses among: output data rates of 10 Hz, 50 Hz, 60 Hz, or 120 Hz; PGA gains of 1, 8, 64, or 128; the channels to be converted (AIN1/AIN2, AIN3/AIN4, or temperature sensor)—and selects the power down/reset mode; and the clock source. Simultaneous 50 Hz and 60 Hz noise-rejection nulls occur at 10 Hz and 50 Hz data rates. Specifications include 21.5-bit noise-free resolution (G = 1), 5-nV/°C offset drift, 1-ppm/°C gain drift, and 15-nV rms noise. Operating on a 3-V to 5.25-V analog supply and a 2.7-V or 5.25-V digital supply, the AD7191 consumes 1.1 mA at G=1, 4.0 mA at G=8, and 5.5 mA at G=128. Available in a 24-lead TSSOP package, it is specified from –40°C to +105°C and priced at $3.80 in 1000s. 24-bit, 4.8-khz, ultralow-noise Sigma-Delta ADC with PGA
The
AD7192 complete, low-noise, high-precision analog
front-end for weigh scales, strain gauges, and pressure sensors includes a
multiplexer, a programmable-gain amplifier, a 24-bit sigma-delta ADC, and a
temperature sensor. It can be configured for two differential or four
pseudo-differential inputs; a channel sequencer allows sequential conversion
of each enabled input. The PGA gain can be set between 1 and 128, with
0.005% gain error and 1-ppm/°C gain drift. The on-chip 4.92-MHz clock
provides output data rates between 4.7 Hz to 4.8 kHz, with 22 noise-free
bits at G = 1. The digital filter has two options that control data rate,
settling time, and 50/60-Hz rejection. It also features a zero-latency mode.
Operating on a Dual 14-bit, 4.2-Msps, simultaneously-sampling Successive-Approximation ADC The AD7357 dual 14-bit, 4.2-Msps successive-approximation ADC accepts differential inputs within a range of ±VREF/2. Twin signal paths, each comprising a wideband track-and-hold and high-speed ADC, allow simultaneous conversion of two input signals, with data available via a high-speed SPI-compatible interface. An on-chip 2.048-V reference can be overdriven if an external reference is preferred. Specifications include ±2-LSB integral nonlinearity, ±0.5-LSB differential nonlinearity, 110-MHz input bandwidth, and 77-dB signal-to-noise-plus-distortion (SINAD). Operating on a single 2.5-V supply, the AD7357 dissipates 36 mW in normal mode, 16 mW in static mode, 9.5 mW in partial power-down mode, and 16 µW in full power-down mode. Housed in 16-lead TSSOP packages, two grades are available: the B-grade, specified from –40°C to +85°C, is priced at $10.81 in 1000s; the Y-grade, specified from –40°C to +125°C, is priced at $12.43 in 1000s. 24-/20-bit ultralow-power pin-programmable Sigma-Delta ADCs The AD7780/AD7781 low-power analog front-ends for weigh scales, strain gauges, and pressure sensors include a programmable-gain amplifier, 24-/20-bit sigma-delta ADC, and an on-chip oscillator. The amplifier gain can be set to 1 or 128, yielding a fully differential input range of ±5 V or ±39 mV. The output data rate can be set to 16.7 Hz for faster settling time or 10 Hz for lower noise. Both modes reject 50-/60-Hz noise. The ADC provides 18.7-bit p-p resolution and 2.7-μV rms noise with a gain of 1 and a 16.7-Hz update rate; and 17.6-bit p-p resolution and 44-nV rms noise with a gain of 128 and a 10-Hz update rate. Operating on a single 2.7-V to 5.25-V supply, the AD7780/81 consume 115 µA at G = 1, 330 µA at G = 128, and 10 µA in power-down mode. Available in 14-lead SOIC and 16-lead TSSOP packages, they are specified from –40°C to +105°C and priced from $2.70/$1.95 in 1000s. 18-bit, 2-Msps Successive-Approximation ADC
The
AD7986 low-power PulSAR®
successive-approximation ADC achieves 18-bit resolution with no missing
codes at a 2-Msps sampling rate. Accepting fully differential inputs within
a ±VREF range, it specifies 95.5-dB
signal-to-noise-plus-distortion (SINAD), Dual 14-/16-bit, 125-Msps Pipelined ADCs operate on 1.8-V supply The AD9258/AD9268 dual pipelined A/D converters provide 14-/16-bit resolution with no missing codes at sampling rates to 125 Msps, making them ideal for broadband communications, software-defined radios, and ultrasound equipment. The fully differential analog inputs accept signals with a 1-V p-p to 2-V p-p full-scale range, at frequencies up to 650 MHz. Output data is available from two parallel ports, which can be set for 1.8-V CMOS or LVDS compatibility. Functionally complete, each device includes a voltage reference, a clock duty-cycle stabilizer, an SPI-compatible port, and optional dither generation. With a 70-MHz analog input signal, their specifications include: 77.6-/78.2-dBFs signal-to-noise ratio (SNR), 88-dBc spurious-free dynamic range (SFDR), ±0.8-/±3-LSB integral nonlinearity (INL), and ±0.25-/±0.7-LSB differential nonlinearity (DNL). Operating with a single 1.8-V supply, the AD9258/68 dissipate 750 mW at 125 Msps, 45 mW in standby mode, and 2.5 mW in power-down mode. Specified from –40°C to +85°C, they are available in 64-lead LFCSP packages and priced at $93.50/$136.00 in 1000s. Quad 12-bit, 170-/210-Msps Pipelined ADC operates on 1.8-V supply
The
AD9639 pipelined 4-channel A/D converter provides
12-bit resolution with no missing codes at sampling rates to 210 Msps,
making it ideal for broadband communications, radar, and test equipment. The
fully differential analog inputs accept signals with a May 2009 Low-voltage Touch-Screen Controller
The
AD7889 touch-screen controller features a 12-bit,
105-Msps successive-approximation ADC and low
on-resistance switches for driving
low-voltage, 4-wire resistive touch screens. It can run in
slave mode or in standalone
mode—which uses an automatic conversion sequencer and timer.
User-programmable median- and averaging filters reduce the effects of LCD
noise. Acquisition time and conversion delay are also user programmable. An
on-chip temperature sensor measures local temperature to within ±2°C. A
programmable pin can operate as an ADC input, battery monitor, or digital
I/O. All control signals and data are all communicated via an SPI- (AD7889)
or I2C- Single-phase Energy-Measurement ICs integrate MCU, RTC, and LCD driver The ADE5566 and ADE5569 single-phase energy-measurement ICs integrate all the circuitry required to make an electronic energy meter with LCD display, including an analog front-end with two fully differential programmable-gain voltage inputs, fixed-function DSP, enhanced 8052-compatible MCU, real-time clock, LCD driver, and peripherals. Accurate to 0.1% over a 1000-to-1 dynamic range, they surpass the requirements of the IEC 62053-2x standards. They measure active and apparent energy, as well as rms voltage and current. The ADE5569 also measures reactive energy, with less than 0.5% error over a 1000-to-1 dynamic range. The data, provided in energy-measurement units, is ready for billing and other uses. Operating with a single 3.3-V supply, the ADE5566/69 consume 4.4 mA in normal mode, 3.3 mA in PSM1 mode, 38 μA in PSM2 mode, and 1.7 μA in sleep mode. Available in 64-lead LQFP packages, they are specified from –40°C to +85°C and priced at $3.17/$3.41 in 1000s. March 2009 Programmable Controller for single-electrode capacitance sensors The AD7147A CapTouch™ capacitance-to-digital converter provides 13 input channels that interface with single-electrode capacitive sensors—such as button arrays, scroll bars, or scroll wheels. A 16-bit, 250-kHz sigma-delta converter measures the capacitance, senses changes, and indicates sensor activation. On-chip circuitry automatically calibrates the converter to compensate for changes in temperature and humidity, thus eliminating false or non-registering touches. Data- and control signals are transferred via SPI- or I2C-compatible interfaces. Operating on a single 2.6-V to 3.6-V supply, the AD7147A consumes 800 μA in full-power mode, 15.5 μA in low-power mode, and 2.3 μA in shutdown mode. Available in a 25 ball WLCSP package, it is specified from –40°C to +85°C and priced at $1.30 in 1000s. 16-bit, 6-Msps Successive-Approximation ADC has differential inputs, 1-LSB INL The AD7625 PulSAR® successive-approximation A/D converter achieves 16-bit resolution, ±0.5-LSB max differential nonlinearity (DNL), and ±1-LSB max integral nonlinearity (INL) at 6 Msps, making it the fastest, most accurate 16-bit ADC available. With no pipeline delay, it is ideal for telecommunications receivers, digital imaging, and high-speed data acquisition. With a 4.096-V internal- or external voltage reference, it provides 92-dB SINAD, –105.5-dB THD, and ±VREF differential input range. Data is available on a self-clocked LVDS interface or an echoed-clock serial interface. Operating on 2.5-V and 5-V supplies, the AD7625 dissipates 145 mW with the internal reference and 135 mW with an external reference. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and is priced at $29.95 in 1000s. Single-phase Energy-Measurement IC integrates MCU, RTC, and LCD driver
The
ADE7518 single-phase energy-measurement IC, which integrates all the
circuitry required to make an electronic energy meter with LCD display,
includes: an analog front-end with two fully differential programmable-gain
voltage inputs, fixed-function DSP, enhanced 8052-compatible MCU, real-time
clock, LCD driver, and peripherals. It measures active, reactive, and
apparent energy, as well as rms voltage and current. Accurate to 0.1% over a
1000-to-1 dynamic range (active energy), it surpasses the requirements of
the February 2009 Single-phase Energy-Measurement ICs integrate MCU, RTC, and LCD driver The ADE7116 and ADE7156 single-phase energy-measurement ICs integrate all the circuitry required to make an electronic energy meter with LCD display, including an analog front-end with three fully differential programmable-gain amplifiers, fixed-function DSP, enhanced 8052-compatible MCU, real-time clock, LCD driver, and peripherals. Accurate to 0.1% over a 1000-to-1 dynamic range, they surpass the requirements of the IEC 62053-2x standards. They measure active and apparent energy, as well as rms voltage and current. In antitamper mode, ampere-hour information is accumulated instead of apparent power. Output data, provided in energy-measurement units, is ready for energy billing and other uses. Operating with a single 3.3-V supply, the ADE7116/56 consume 4 mA in normal mode, 3.2 mA in battery mode, and 1.5 μA in sleep mode. Available in 64-lead LQFP packages, they are specified from –40°C to +85°C and priced from $2.48/$2.56 in 1000s. January 2009 11-bit, 200-Msps Pipelined ADC operates on 1.8-V supply The
AD9230-11 pipelined A/D converter provides 11-bit
resolution with no missing codes at sampling rates to 200 Msps, making it
ideal for broadband communications, radar, and test equipment. The fully
differential analog input accepts signals with a programmable full-scale
range of 1.0-V to 1.5-V, at frequencies up to 700 MHz. The outputs use
parallel low-voltage differential signaling (LVDS), with data rates matching
the sample rate. A double-data-rate output mode is supported for
applications requiring a reduced number of output traces. Functionally
complete, the ADC includes a high-performance track-and-hold and an on-chip
voltage reference. With a Quad 12-bit, 170-/210-/250-Msps Pipelined ADC operates on 1.8-V supply The AD9239 quad pipelined A/D converter provides 12-bit resolution with no missing codes at sampling rates to 250 Msps, making it ideal for broadband communications, radar, and test equipment. The fully differential analog input accepts signals with a 1.25-V full-scale range, at frequencies up to 780 MHz. The output data is serialized and presented in packets consisting of channel-specific information, coded samples, and error-correction coefficients. Functionally complete, the device includes four input buffers, sample-and-hold amplifiers, and ADCs; a voltage reference; and a temperature sensor. With an 84.3-MHz analog input signal, its specifications include: 64.4-dBc signal-to-noise plus distortion (SINAD), 10.4 effective bits (ENOB), 79-dBc spurious-free dynamic range (SFDR), ±0.45-LSB integral nonlinearity (INL) and ±0.28-LSB differential nonlinearity (DNL). Operating with a single 1.8-V supply, the AD9239 consumes 285 mW per channel at 170 Msps, 152 mW in standby mode, and 3 mW in power-down mode. Specified from –40°C to +85°C, it is available in a 72-lead LFCSP package and priced from $101.15 in 1000s. Single-phase Energy-Measurement ICs integrate MCU, RTC, and LCD driver The
ADE5166 and
ADE5169
single-phase energy-measurement ICs integrate all the circuitry required to
make an electronic energy meter with LCD display, including an analog
front-end with two fully differential programmable-gain voltage inputs,
fixed-function DSP, enhanced 8052-compatible MCU, real-time clock, LCD
driver, and peripherals. Accurate to 0.1% over a 1000-to-1 dynamic range,
they surpass the requirements of the IEC 62053-2x standards. They measure
active and apparent energy, as well as rms voltage and current. The
ADE5169 also measures reactive energy, with less than 0.5% error
over a 1000-to-1 dynamic range. The data, provided in energy-measurement
units, is ready for energy billing and other uses. In
antitamper mode, the reactive power accumulated depends on the sign
of the active power. Operating with a single 3.3-V supply, the ADE5166/69
consume 4.4 mA in normal mode, 3.3
mA in PSM1 mode, 38 μA in
PSM2 mode, and 1.7 μA in
sleep mode. Available in 64-lead
LQFP packages, they are specified from –40°C to December 2008 2-channel, 12-bit, ultralow-power Capacitance-to-Digital Converter The two-channel AD7156 capacitance-to-digital converter interfaces with floating capacitive sensors in proximity sensors, level detectors, and contactless switches. A 12-bit sigma-delta converter measures the sensor capacitance, achieving 0.05% linearity over 0.5-/1-/2-/4-pF input ranges with 1-/1.4-/1.6/2.0-fF resolution. An on-chip digital-to-capacitance converter can balance common-mode capacitance of up to 10 pF. An adaptive threshold compensates for variations in sensor capacitance due to temperature and humidity. Operations can be programmed—and data can be read—via an I2C-compatible interface. Operating with a single 1.8-V to 3.6-V supply, the AD7156 consumes 70 μA in normal mode and 2 µA in power-down mode. Available in a 10-lead LFCSP package, it is specified from –40°C to +85°C and priced at $1.25 in 1000s. 24-bit, 4.8-kHz, ultralow-noise Sigma-Delta ADC with PGA The AD7190 complete, low-noise, high-precision analog front-end for weigh scales, strain gauges, and pressure sensors includes a programmable-gain amplifier, and 24-bit sigma-delta ADC. It can be configured for two differential or four pseudo-differential inputs; a channel sequencer allows sequential conversion of each enabled input. The on-chip 4.92-MHz clock enables output data rates between 4.7 Hz to 4.8 kHz, with 22.5 noise-free bits at 4.7 Hz, 16 noise-free bits at 2.4 kHz, and 15-ppm max INL. The PGA gain can be set between 1 and 128, with 0.005% gain error and 1-ppm/°C gain drift. The digital filter can be programmed for data rate, settling time, and 50/60-Hz rejection. It also features a zero-latency mode. Operating on a single 5-V analog supply and a 3-V or 5-V digital supply, the AD7190 consumes 1.1 mA at G=1, 4.0 mA at G=8, and 5.5 mA at G=128. Available in a 24-lead TSSOP package, it is specified from –40°C to +105°C and priced at $5.90 in 1000s. Dual, 12-bit, 3-/5-MSPS, differential, simultaneously sampling, SAR ADCs The AD7352/AD7356 dual 12-bit, 3-/5-Msps successive-approximation ADCs combine two high-speed, low-power ADCs, two wideband, low-noise track-and-hold amplifiers, a voltage reference, and two independent reference buffers in a single package. The devices accept differential inputs in the range of ±VREF/2. The on-chip 2.048-V reference can be overdriven when an external reference is preferred. Twin signal paths allow simultaneous conversion of two inputs. Output data is available simultaneously on separate data lines—or in succession on a single data line to feed a single serial port. The successive-approximation architecture ensures that there will be no pipeline delays. Specifications include 71-dB signal-to-noise-plus-distortion (SINAD), –84-dB total harmonic distortion (THD), ±1-LSB max integral nonlinearity (INL), and ±0.99-LSB max differential nonlinearity (DNL). B- and Y- grades are specified from –40°C to +85°C and –40°C to +125°C, respectively. Operating on a single 2.5-V supply, the AD7352/56 consume 26/36 mW in normal mode and 16 µW in power-down mode. Available in 16-lead TSSOP packages, the converters are priced from $5.50/$7.89 in 1000s. 8-channel, 16-bit, 500-ksps Successive-Approximation ADC
The
AD7699 8-channel, 16-bit, 500-ksps
successive-approximation ADC combines a multiplexer, selectable single-pole
low-pass filter, and 16-bit sampling ADC, with a low-drift buffered
reference, temperature sensor, channel sequencer, and SPI-compatible
interface. The multiplexer accepts single-ended unipolar,
pseudo-differential bipolar, or fully differential inputs with a full-scale
range of 0 to VREF. The reference can be internal (4.096 V), or
external (up to 4.096 V, using the buffer, or up to VDD,
bypassing the buffer). The successive-approximation architecture ensures no
pipeline delays. Specifications include 91.5-dB
signal-to-noise-plus-distortion (SINAD), –97-dB total harmonic distortion
(THD), ±0.5-LSB integral nonlinearity (INL), and ±0.25-LSB differential
nonlinearity (DNL). Operating on a single 4.5-V to 5.5-V supply, the AD7699
consumes 28 mW at 250 ksps, 5.2 mW at 100 ksps, and 250 nW in
standby mode. Available in a
20-lead LFCSP package, it is specified from Low-voltage Touch-Screen Controller The AD7879 touch-screen controller features a 12-bit, 105-Msps successive-approximation ADC and low on-resistance switches for driving low-voltage, 4-wire resistive touch screens. It can run in slave mode or in standalone mode—which uses an automatic conversion sequencer and timer. User-programmable median- and averaging filters reduce the effects of LCD noise. Acquisition time, conversion delay, and averaging are also user programmable. A programmable pin can operate as an ADC input, battery monitor, or digital I/O. An on-chip temperature sensor measures local temperature to within ±2°C. All control signals and data are all communicated via the synchronous serial interface. Operating on a single 1.6-V to 3.6-V supply, the AD7879 consumes 480 μA in converting mode and 0.5 μA in shutdown mode. Available in 12-ball WLCSP and 16-lead LFCSP packages, it is specified from –40°C to +85°C and priced at $0.93 in 10,000s. 8-channel, low-noise Analog Front-End for medical imaging The AD9272 analog front-end for medical imaging, ultrasound, and radar applications comprises eight time-gain control (TGC) channels—each consisting of a low-noise preamplifier (LNA), a variable-gain amplifier (VGA), an anti-aliasing filter (AAF), and a 12-bit, 80-Msps analog-to-digital converter (ADC). It also includes an 8 × 8 differential crosspoint switch for use in continuous-wave (CW) Doppler mode. Each channel is a fully differential signal path with 42-dB gain range, 52-dB maximum gain, 0.75-nV/rt-Hz input-referred noise, and 92-dB input signal-to-noise ratio (SNR). The AD9272 consumes 195 mW at 40 Msps and 120 mW in CW mode. Available in a 100-lead TQFP package, it is specified from –40°C to +85°C and priced from $54.00 in 1000s. 8-channel, low-power Analog Front-End for medical imaging The AD9273 analog front-end for medical imaging, ultrasound, and radar applications comprises eight time-gain control (TGC) channels—each consisting of a low-noise preamplifier (LNA), a variable-gain amplifier (VGA), an anti-aliasing filter (AAF), and a 12-bit, 50-Msps analog-to-digital converter (ADC). It also includes an 8 × 8 differential crosspoint switch for use in continuous-wave (CW) Doppler mode. Each channel is a fully differential signal path with 42-dB gain range, 52-dB maximum gain, 1.2-nV/rt-Hz input-referred noise, and 91-dB input signal-to-noise ratio (SNR). The AD9273 consumes 109 mW at 40 Msps and 70 mW in CW mode. Available in a 100-lead TQFP package, it is specified from –40°C to +85°C and priced from $51.00 in 1000s. Analog-to-Digital Converter Home Page Search for more information on Analog-to-Digital Converters September 2009 Triple skew-compensating Video Delay Line
The
AD8120 triple skew-compensating video delay line
corrects for time mismatch incurred by video signals during transmission
over Cat-5 and Cat-6 unshielded twisted-pair cables. Three signal paths
provide broadband delays of up to 50 ns in 0.8-ns increments using 64-step
digital control over I2C or SPI buses. Simple analog voltage
control can be used in systems without digital control. Bandwidth ranges
from 150 MHz with a 50-ns delay to 200 MHz with a 0-ns delay. Operating on
±4.5-V to ±5.5-V dual supplies, the AD8120 consumes 114 mA with a 50-ns
delay, 44 mA with a Low-power HDMI/DVI Transmitter with consumer electronics control
The
ADV7523 low-power 80-MHz HDMI/DVI transmitter
supports HDTV formats up to 720p/1080i and graphic resolutions up to XGA
(1024 × 768 @ 75 Hz), ideal properties for digital cameras, personal media
players, and other portable applications. Compatible with HDMI v1.3, DVI
v1.0, and HDCP v1.3 protocols, the transmitter supports S/PDIF for stereo-
or compressed audio and I2S for Quad deep-color HDMI Receiver The ADV7614 quad deep-color HDMI v1.3 receiver supports all HDTV formats up to 1080p and display resolutions up to UXGA (1600 × 1200 @ 60 Hz). High-bandwidth digital content protection (HDCP v1.3) enables reception of encrypted video; and consumer electronics control (CEC) allows device wake-up by a remote control command, saving power and ensuring Energy-Star compliance. Adaptive equalization facilitates operation with cables up to 30 m in length. The device supports multiple audio formats, including I2S, S/PDIF, Dolby® TrueHD and DTS® HD. Available in a 260-ball CSP-BGA package, the ADV7614 is specified from –40°C to +70°C and priced at $13.06 in 1000s. 12-bit, 170-MHz Video/Graphics Digitizer and quad HDMI receiver
The
ADV7840 deep color video/graphics digitizer,
which integrates an analog interface and an HDMI v1.3 receiver, supports all
HDTV formats up to 1080p and display resolutions up to UXGA (1600 × 1200 @
60 Hz). The 12-bit, June 2009 SigmaDSP Digital Audio Processor has flexible audio-routing matrix
The
ADAU1446 SigmaDSP® audio processor
multiplexes inputs and outputs running at various sampling rates,
simplifying signal routing and clock management in digital audio systems.
The flexible audio routing matrix includes an S/PDIF transceiver and 24
time-division-multiplexed I/Os. Any of the inputs and outputs can be routed
to or taken from the SigmaDSP core, and the routing scheme can be modified
at any time via on-chip control registers. The 28-/56-bit digital audio
processor—fully programmable using the SigmaStudio™ graphical tool to
compensate for real-world limitations of speakers, amplifiers, and listening
environments—provides a dramatic improvement in perceived audio quality.
Operating with 1.8-V and 3.3-V supplies, the ADAU1446 consumes 500 mW max.
Available in a 100-lead LQFP package, it is specified from Low-power Mobile TV Tuner IC for ISDB-T
The
ADMTV202 low-power TV tuner IC provides low-IF,
single-conversion tuning for terrestrial Integrated Services Digital
Broadcasting (ISDB-T) digital mobile TV in cell phones, personal media
players, and automobile infotainment systems. A highly integrated device, it
includes a UHF low-noise amplifier (LNA), an RF programmable-gain amplifier
(PGA), a down-conversion mixer, a complex band-pass filter, an IF PGA, a
VCO, and a fractional-N PLL. Operating with a 1.8-V supply, the ADMTV202
consumes 75 mW. Available in a 2 × 2-W filterless Class-D Stereo Audio Amplifier has tiny package, ultra low EMI
The
SSM2356 stereo Class-D audio amplifier can
deliver 2 × 2 W of continuous output power into 4-ohm loads—or March 2009 24-bit, 96-kHz, stereo Audio Codec with integrated PLL The ADAU1361 low-power stereo audio codec supports 48-kHz record and playback while consuming only 10 mW at 1.8 V. The codec supports 24-bit data at 8-kHz to 96-kHz sampling rates, providing 100-dB dynamic range (DR). The record path includes a microphone bias circuit and six analog inputs, which can be can be mixed and muxed to a stereo ADC—or they can be routed directly to the analog output mixers. A stereo digital microphone input is also supported. The playback path includes a stereo DAC, analog output mixer, and five high-power output drivers—two differential and three single-ended—that support stereo headphones, an earpiece, or other output transducer. Individual fine-level control is provided on all seven outputs. The control bus is compatible with I2C and SPI protocols; and the audio bus is programmable for I2S, left/right justified, and TDM modes. A PLL generates sampling clocks from master clocks between 8 MHz and 27 MHz. Available in a 32-lead LFCSP package, the ADAU1361 is specified from –40°C to +85°C and priced at $2.88 in 1000s. SigmaDSP Digital Audio Processor has flexible audio-routing matrix The ADAU1445 SigmaDSP® audio processor multiplexes inputs and outputs running at various sampling rates, simplifying signal routing and clock management in digital audio systems. The flexible audio routing matrix includes two 8-channel asynchronous sample rate converters, an S/PDIF transceiver, and 24 time-division-multiplexed I/Os. Any of the inputs can be routed to the sample rate converter or the SigmaDSP core, and any of the outputs can be taken from the sample rate converter or SigmaDSP core. The routing scheme can be modified at any time via on-chip control registers. The 28-/56-bit digital audio processor is fully programmable using the SigmaStudio™ graphical tool to compensate for real-world limitations of speakers, amplifiers, and listening environments, thus providing a dramatic improvement in perceived audio quality. Operating with 1.8-V and 3.3-V supplies, the ADAU1445 consumes 640 mW max. Available in a 100-lead TQFP-EP package, it is specified from –40°C to +105°C and priced at $9.31 in 1000s. 24-bit, 96-kHz, SigmaDSP stereo Audio Codec with integrated PLL
The
ADAU1761 low-power SigmaDSP® stereo
audio codec supports 48-kHz record
and playback while consuming only 10 mW at 1.8 V. The codec supports
24-bit data at 8-kHz to 96-kHz sampling rates, providing 100-dB dynamic
range (DR). The record path
includes a microphone bias circuit and six analog inputs, which can be can
be mixed and muxed to a stereo ADC—or they can be routed directly to the
analog output mixers. A stereo digital microphone input is also supported.
The playback path includes a
stereo DAC, analog output mixer, and five high-power output drivers—two
differential and three single-ended—that support stereo headphones, an
earpiece, or other output transducer. Individual fine-level control is
provided on all seven outputs. The control bus is compatible with I2C
and SPI protocols; and the audio bus is programmable for I2S,
left/right justified, and TDM modes. A PLL generates sampling clocks from
master clocks between 8 MHz and 27 MHz. The 28-/56-bit, 50-MIPS
digital-audio processor is fully programmable using the SigmaStudio™
graphical tool. Available in a 32-lead LFCSP package, the ADAU1761 is
specified from 12-bit, 170-MHz Video/Graphics Digitizer and quad HDMI receiver The ADV7604 deep color video/graphics digitizer, which integrates an analog interface and an HDMI receiver, supports all HDTV formats up to 1080p 12-bit deep color and display resolutions up to UXGA (1600 × 1200 @ 60 Hz). The 12-bit, 170-MHz analog interface decodes YPrPb or RGB component video—or digitizes RGB graphics—into a digital YCrCb or RGB pixel output stream. The HDMI receiver includes high-bandwidth digital content protection (HDCP)—enabling reception of encrypted video—and consumer electronics control (CEC)—which allows the device to wake up when a remote control command is received, saving power and ensuring Energy-Star compliance. Simultaneous processing of HDMI and analog video sync allows fast switching between HDMI and analog video inputs. Adaptive equalization facilitates operation with cables up to 30 m in length. Available in a 260-ball CSP-BGA package, the ADV7604 is specified from –40°C to +70°C and priced at $14.86 in 1000s. February 2009 2-channel, 14-bit HD Image Signal Processor with Precision Timing Core
The
AD9978A HD image signal processor integrates two
complete analog front-ends, making it ideal for high-speed digital still
cameras, digital video cameras, and digital copiers that use advanced
2-channel CCD or CMOS imagers. The analog front-end conditions the raw image
signal with a correlated double-sampler (CDS) or sample-and-hold amplifier
(SHA) with –3-dB to +6-dB gain, a variable-gain amplifier (VGA) with 6-dB to
42-dB gain, and a 14-bit, 4:1 HDMI/DVI Switch provides equalization, DDC/CEC buffers, EDID replication The ADV3002 video switch selects one of four HDMI (high-definition-multimedia-interface) or DVI (digital-visual-interface) input links—each comprising four TMDS (transition-minimized-differential-signaling) channels—and routes it to a common output link. Input equalization compensates for long (>20-m) cables. Supporting data rates up to 2.25 Gbps and pixel clocks up to 225 MHz, it enabes DVI resolutions up to UXGA (1600 × 1200) and HDMI formats up to 1080p. It also includes bidirectional buffers for the DDC (display-data-channel) bus and CEC (consumer electronic control) line, and EDID (extended display identification data) replication—thus implementing a complete HDMI 1.3a-compliant interface on a single chip. Operating with 3.3-V and 5-V supplies, the ADV3002 consumes 661 mW with outputs enabled and 232 mW with outputs disabled. Available in an 80-lead LQFP package, it is specified from 0°C to +85°C and priced at $2.65 in 1000s. January 2009 SoundMAX Audio Codec supports high-definition audio The AD1989B high-definition SoundMAX® audio codec includes six 24-bit, 192-kHz sigma-delta A/D converters (arranged as three stereo ADCs), ten 24-bit, 192-kHz sigma-delta D/A converters (arranged as five stereo DACs) and a 32-bit computation engine, allowing it to provide high-quality audio that exceeds Windows Vista Premium® performance specifications. The S/PDIF port supports sampling rates from 44.1 kHz to 192 kHz in PCM and AC3 formats; a second transmitter can support an external HDMI interface. Four stereo output ports, four bidirectional stereo I/O ports, and a monophonic output port can be configured to support headphones, microphones, surround-sound and LFE amplifiers, line inputs and outputs, and an internal speaker. Designed for top-of-the-line desktop- and notebook computers, the codec provides 101-dB dynamic range on the line- and headphone outputs and 92-dB on the audio inputs. Operating with 3.3-V analog- and digital supplies, the AD1989B consumes 400 mW. Available in a 48-lead LFCSP package, it is specified from 0°C to 70°C and priced at $2.97 in 1000s. Triple high-speed Video Amplifier provides rail-to-rail outputs, fixed gain of 2 The ADA4856-3 rail-to-rail op amp features 225-MHz bandwidth, 800-V/μs slew rate, 5-ns settling time to 0.1%, 0.01% differential gain error, and 0.01° differential phase error, making it ideal for professional and consumer video, imaging, and active filters. The input common-mode range extends below ground, and the outputs can swing to within 200 mV of either rail, providing true single-supply operation. Operating on a single 3-V to 5.5-V supply, the ADA4856-3 consumes 7.5 mA per amplifier in normal mode and 1 mA in power-down mode. Specified from –40°C to +105°C, it is available in a 16-lead LFCSP package and priced at $1.39 in 1000s. Triple high-speed Video Amplifier with charge pump provides fixed gain of 2
The
ADA4859-3 op amp features 195-MHz bandwidth,
740-V/μs slew rate, 20-ns settling time to 0.1%, 0.01% differential gain
error, and 0.02° differential phase error, making it ideal for professional
and consumer video, imaging, and active filters. The on-chip charge pump
eliminates the need for a negative supply, while allowing a –1.8-V to +3.8-V
input common-mode range and a –1.7-V to +3.8-V output swing. Operating on a
single 3-V to 5.5-V supply, the ADA4859-3 consumes 38 mA total, including
the charge pump, and 4.25 mA in
power-down mode. Specified from December 2008 SoundMAX Audio Codec supports high-definition audio The AD1882A high-definition SoundMAX® audio codec includes four 24-bit, 192-kHz sigma-delta A/D converters (arranged as two stereo ADCs), six 24-bit, 192-kHz sigma-delta D/A converters (arranged as three stereo DACs) and a 32-bit computation engine, allowing it to provide high-quality audio that exceeds Windows Vista Premium® performance specifications. It supports two mono- or one stereo digital microphone on a single input pin. The two stereo h headphone outputs are useful for gaming and VoIP. The S/PDIF port supports sampling rates from 44.1 kHz to 192 kHz in PCM and AC3 formats. Designed for desktop- and high-performance notebook- computers, the codec provides 95-dB dynamic range on the audio outputs and 90-dB on the audio inputs. Operating with 3.3-V analog- and digital supplies, the AD1882A consumes 390 mW. Available in a 48-lead LFCSP package, it is specified from 0°C to 70°C and priced at $2.41 in 1000s. RF Tuner IC for DVB-H, DVB-T, DTMB, and CMMB The ADMTV102 zero-IF conversion tuner IC for dual-band mobile TV applications covers UHF bands IV and V—from 470 MHz to 862 MHz. Comprising two low-noise amplifiers (LNA), an RF programmable-gain amplifier (PGA), an I/Q down-conversion mixer, two adjustable-bandwidth low-pass filters, two baseband variable-gain amplifiers (VGA), a voltage-controlled oscillator (VCO), and a fractional-N phase-locked loop (PLL), it implements a complete low-noise DVB-H, DVB-T, DTMB, and CMMB tuner on a single chip. Operating on a 1.8-V supply, the ADMTV102 consumes 200 mW. Available in a 32-lead LFCSP package, it is priced at $2.90 in 1000s. 3-W high-efficiency, filterless monophonic Class-D Audio Amplifier The
SSM2335 monophonic Class-D audio amplifier can
deliver 3 W of continuous output power into a 3-ohm load—or 1.4 W into an
Search for more information on Audio Search for more information on Video November 2009
September 2009 Quad 16-bit nanoDAC® Digital-to Analog Converter has unbuffered voltage outputs The
AD5066 quad voltage-output DAC provides 16-bit
resolution with 1-LSB max differential nonlinearity (DNL).
B-/A-grades
specify Single/quad 12-bit Voltage-Output DACs provide high-voltage outputs The single AD5501 and quad AD5504 12-bit, serial-input, high-voltage-output DACs have pin-selectable output ranges of 0 V to 30 V and 0 V to 60 V. Functionally complete, they include a precision voltage reference, temperature sensor, one/four double-buffered DACs, and one/four high-voltage amplifiers. Upon power up, the digital section is enabled and set to a known state; the analog section remains disabled until a power-up command is issued via the SPI port. The temperature sensor disconnects the analog outputs and sets an alarm flag if the die temperature exceeds 110°C. The AD5501/04 specify 1-LSB max differential nonlinearity (DNL), 1-/2-LSB max integral nonlinearity (INL) in 60-V mode, and 2-/3-LSB max INL in 30-V mode. Operating on 10-V to 62-V and 2.3-V to 5.5-V supplies, they consume 0.6/2.0 mA in normal mode and 30 µA in power-down mode. Available in 16-lead TSSOP packages, they are specified from –40°C to +105°C and priced at $4.58/$9.92 in 1000s. June 2009 256-/1024-position Digital Potentiometers are 1% accurate, 20-time programmable The
AD5291/AD5292 digital potentiometers feature
256-/1024-position resolution. End-to-end resistance options of 20 kohm,
50 kohm, and 100 kohm are available, with better than 1% tolerance—and
temperature coefficients of 35 ppm/°C in
rheostat mode and 5 ppm/°C (ratio)
in divider mode. The devices
perform the same electronic adjustment function as mechanical
potentiometers, but are smaller and more reliable. Their wiper position can
be adjusted via an SPI-compatible interface. Unlimited adjustments can be
made before blowing a fuse to fix the wiper position, a process analogous to
putting epoxy on a mechanical trimmer. This process can be repeated up to 20
times ("removing the epoxy"). Operating on a single 9-V to 33-V supply or
dual ±9-V to ±16.5-V supplies, the AD5291/92 dissipate 8 μW. Available in
1024-position Digital Potentiometer is 1% accurate The AD5293 digital potentiometer features 1024-position resolution. End-to-end resistance options of 20 kohm, 50 kohm, and 100 kohm are available, with better than 1% tolerance—and temperature coefficients of 35 ppm/°C in rheostat mode and 5 ppm/°C (ratio) in divider mode. The device performs the same electronic adjustment function as a mechanical potentiometer, but is smaller and more reliable. Its wiper position can be adjusted via an SPI-compatible interface. Operating on a single 9-V to 33-V supply or dual ±9-V to ±16.5-V supplies, the AD5293 dissipates 8 μW. Available in a 14-lead TSSOP package, it is specified from –40°C to +105°C and priced at $2.55 in 1000s. 12-/16-bit, serial input, Current Source and Voltage Output DACs The AD5412/AD5422 serial-input DACs provide both current source and voltage outputs, with 12-/16-bit resolution and ±0.01% total unadjusted error, making them ideal for industrial process-control applications. The current output range is programmable for 0 mA to 20 mA, 4 mA to 20 mA, or 0 mA to 24 mA. The voltage output, available from a separate pin, is programmable for 0 V to 5 V, 0 V to 10V, ±5 V, and ±10 V ranges; 10% over-range capability is available on all ranges. Protected against open- and short circuits, these robust devices can drive 1-μF loads. The SPI-compatible serial interface simplifies the task of adding galvanic isolation when it is required. A power-on-reset function ensures that the devices power up in a known state; an asynchronous clear function sets the DAC output to zero volts or the low end of the selected current range. Operating with 10.8-V to 40-V and 0-V to –26.4-V supplies, the AD5412/22 dissipate 120 mW. Available in 24-lead TSSOP packages, they are specified from –40°C to +85°C and priced from $3.79/$4.95 in 1000s. 14-bit, 2400-Msps RF DAC with 4-channel QAM signal processing The AD9789 signal-processing DAC combines a flexible QAM encoder, interpolator, and upconverter with a high-performance 14-bit, 2400-Msps RF digital-to-analog converter. The 150-MHz LVDS/CMOS digital interface accepts up to four channels of complex data. The QAM encoder supports 16-/32-/64-/128-/256-point constellation sizes, and includes square-root raised cosine (SRRC) filter coefficients for all standards. Operating from the 2.4-GHz DAC clock, the sample-rate converter supports a wide range of baud rates. The digital upconverter can synthesize and place four contiguous channels anywhere from dc to FDAC/2. Operating on 1.5-V, 1.8-V, and 3.3-V supplies, the AD9789 dissipates 1.7 W. Available in a 164-ball CSPBGA package, it is specified from –40°C to +85°C and priced from $53.10 in 1000s. May 2009 12-/16-bit Current-Source DACs The AD5410/AD5420 current-source DACs achieve 12-/16-bit resolution with 1-LSB differential linearity and 0.1% total unadjusted error. Designed for industrial process control, they provide programmable output current ranges of: 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA. The open-circuit-protected output can drive inductive loads up to 1 H. The SPI-compatible serial interface simplifies the task of adding galvanic isolation when it is required. A power-on-reset function ensures that the devices power up in a known state; an asynchronous clear function sets the DAC output to the low end of the selected current range. Operating with a single 10.8-V to 40-V supply, the AD5410/20 dissipate 144 mW at 40 V and 50 mW at 15 V. Available in 24-lead TSSOP packages, they are specified from –40°C to +85°C and priced at $3.35/$4.32 in 1000s. Quad 12-bit, serial-input, Voltage-Output DAC The AD5724R quad voltage-output DAC features 12-bit resolution with ±1-LSB INL and DNL. Functionally complete, it includes double-buffered input registers; 2.5-V reference (5 ppm°/C max); reference buffers; and output buffers—and provides software-selectable output ranges of +5 V, +10 V, +10.8 V, ±5 V, ±10 V, and ±10.8 V. The DAC output is zero volts at power-up, remaining there until a valid write occurs. The 3-wire serial interface operates at clock rates up to 30 MHz. Operating with 4.5-V to 16.5-V or ±4.5-V to ±16.5-V analog supplies and a 2.7-V to 5.5-V digital supply, the AD5724R consumes 310 mW max. Available in a 24-lead TSSOP package, it is specified from –40°C to +85°C and priced at $8.95 in 1000s. April 2009 14-bit, 2500-Msps Current-Output DAC
The
AD9739 high-performance DAC achieves 14-bit
resolution at sample rates up to 2500 Msps, enabling multicarrier generation
up to the Nyquist frequency in baseband mode and second and third Nyquist
zones in mix mode. The dual-port, double-data-rate LVDS interface has
100-ohm terminations. The current outputs, configurable for single-ended or
differential topologies, provide a programmable full-scale output-current
range of 8.66 mA to 31.66 mA. Linearity specifications are ±0.8-LSB DNL and
±1.3-LSB INL. Operating on 1.8-V and 3.3-V supplies, the AD9739 consumes
1.16 W at 2.5 Gbps, 940 mW at 2 Gbps, 15 mW in
sleep mode, and 8 mW in
power-down mode. Available in a
March 2009 Quad 14-/16-bit, serial-input, Voltage-Output DACs
The
AD5734R/AD5754R quad voltage-output DACs feature
14-/16-bit resolution with ±4-/±16-LSB INL and guaranteed monotonicity.
Functionally complete, they include double-buffered input registers, 2.5-V,
5 ppm°/C (max) reference, reference buffers, and output buffers—and provide
software-selectable output ranges of +5 V, +10 V, +10.8 V, ±5 V, ±10 V,
and ±10.8 V. The DAC output is zero volts at
power-up, remaining there until a valid
write occurs. The 3-wire serial interface operates at clock rates up
to 30 MHz. Operating with a 2.7-V to 5.5-V digital supply and 4.5-V to
16.5-V or ±4.5-V to ±16.5-V analog supplies, the AD5734R/54R consume 310 mW
max. Available in 24-lead TSSOP packages, they are specified from Dual and quad 16-bit, serial input, Voltage-Output DACs The dual AD5763 and quad AD5765 serial-input, voltage-output DACs feature 16-bit resolution with ±1-LSB max integral- and differential nonlinearity. Operating with an external 2.048-V reference, they include reference buffers, output amplifiers, per-channel offset- and gain adjustment registers, temperature sensor, proprietary power-up/power-down circuitry, and digital I/O port. The double-buffered inputs allow simultaneous updating of all channels. The nominal output range is ±4.096-V. Operating with a 2.7-V to 5.5-V digital supply and ±4.75-V to ±5.25-V analog supplies, the AD5763/65 consume 45 mW. Available in 32-lead TQFP packages, they are specified from –40°C to +105°C and priced from $11.45/$16.50 in 1000s. February 2009 Dual 12-/14-/16-bit serial-input, voltage-output Digital-to-Analog Converters
The
AD5722R/AD5732R/AD5752R dual serial-input,
voltage-output DACs provide 12-/14-/16-bit resolution with Dual, complete, high-accuracy, 16-bit serial-input, voltage-output DAC The AD5762R dual serial-input, voltage-output DAC features 16-bit resolution with ±1-LSB max integral- and differential nonlinearity. It includes a low-drift 5-V, 10-ppm/°C max reference, reference buffers, output amplifiers, per-channel offset- and gain adjustment registers, temperature sensor, proprietary power-up/power-down circuitry, and a 30-MHz serial interface. The nominal full-scale output range is ±10-V. The output is clamped to zero volts during power up, and can be asynchronously cleared to zero scale or bipolar zero. The double-buffered inputs allow simultaneous updating of all channels. Operating on a 2.7-V to 5.25-V digital supply and ±11.4-V to ±16.5-V analog supplies, the AD5762R consumes 180 mW. Available in a 32-lead TQFP package, it is specified from –40°C to +85°C and priced at $16.92 in 1000s. January 2009 10-bit Current-Output DACs can sink 120 mA
The
AD5398A and
AD5821A 10-bit current-output DACs
can sink currents up to 120 mA, a useful property for auto focus, image
stabilization, and optical-zoom applications in camera phones, digital still
cameras, and camcorders. Functionally complete, they include a voltage
reference, current-sense resistor, and 2-wire I2C-compatible
serial interface. Upon power-up, the DAC output is reset to zero, where it
remains until a valid write takes place. Operating with a single 2.7-V to
5.5-V supply, the AD5398A/AD5821A consume 0.5 mA in
normal mode and 0.5 μA in
power-down mode. Available in 9-ball WLCSP packages, they are specified
from –30°C to Dual 12-/14-/16-bit serial-input, voltage-output Digital-to-Analog Converters
The
AD5722/AD5732/AD5752 dual serial-input,
voltage-output DACs provide 12-/14-/16-bit resolution with December 2008 Dual high-linearity 12-/14-/16-bit voltage-output Digital-to-Analog Converters The
AD5025/AD5045/AD5065 dual voltage-output nanoDAC® D/A converters
provide 12-/14-/16-bit resolution with Quad, complete, high-accuracy, 14-/16-bit serial-input, voltage-output DACs The AD5744R/AD5764R quad serial-input, voltage-output DACs feature 14-/16-bit resolution with ±1-LSB max integral- and differential nonlinearity. They include a low-drift 5-V reference, reference buffers, output amplifiers, per-channel offset- and gain adjustment registers, temperature sensor, proprietary power-up/power-down circuitry, and a 30-MHz serial interface. The nominal full-scale output range is ±10-V. The output is clamped to zero volts during power up, and can be asynchronously cleared to zero scale or bipolar zero. Operating on a 2.7-V to 5.25-V digital supply and ±11.4-V to ±16.5-V analog supplies, the AD5744R/64R consume 275 W in normal mode. Available in 32-lead TQFP packages, they are specified from –40°C to +85°C and priced from $23.60/$27.52 in 1000s. Digital-to-Analog Converter Home Page Search for more information on Digital-to-Analog Converters June 2009 Blackfin Embedded Processors
The
ADSP-BF523/ADSP-BF525/ADSP-BF527 and
ADSP-BF523C/ADSP-BF525C/ADSP-BF527C Blackfin Processors, optimized for
low-power portable applications, combine the multimedia signal-processing
power of a single-instruction, multiple-data (SIMD) DSP with the control
capabilities of a RISC microcontroller. With two 16-bit MACs, two 40 bit
ALUs, four 8-bit video ALUs, and 132K bytes of on-chip memory, they operate
at up to 600 MHz. Peripherals, depending on model, include: host DMA port;
USB 2.0 Hi-Speed December 2008 Blackfin Embedded Processor The ADSP-BF54x Blackfin® embedded processor family, optimized for automotive and multimedia applications, combines the multimedia signal-processing power of a single-instruction, multiple-data (SIMD) DSP with the control capabilities of a RISC microcontroller. With two 16-bit MACs, two 40-bit ALUs, four 8-bit video ALUs, and up to 324K bytes of on-chip memory, the core clock operates at up to 600 MHz. The feature-rich peripheral set includes: NAND flash, DDR1, and 1.8-V LP DDR1 controllers; ATAPI; SDIO controller; 2-wire interface (TWI) controller; controller area network (CAN) 2.0B interface; enhanced parallel peripheral interface (ePPI) supporting ITU-R 656 video formats; LCD controller w/ overlay manager; and dual-channel, full-duplex synchronous serial ports that support 16 channels of I2S stereo audio. Dynamic power management allows continuous adjustment of the operating voltage and frequency, optimizing power consumption vs. performance for real-time applications. All Blackfin processors are supported by the VisualDSP++® software-development environment and the EZ-KIT Lite® evaluation system. Available in 17-mm × 17-mm, 400-ball CSP-BGA packages, the ADSP-BF54x products are specified over commercial and industrial temperature ranges. 1K unit pricing begins at $15.66. Embedded Processing and DSP Home Page Search for more information on Embedded Processing and DSP November 2009
September 2009 Bidirectional Digital Isolator handles full- and low-speed USB signals The ADuM4160 iCoupler® digital isolator combines high-speed CMOS and micro-transformers to provide bidirectional isolation for full-speed (12 Mbps) and low-speed (1.5 Mbps) USB ports. Directly inserted in the D+/D– lines, it determines data direction on a packet-by-packet basis. A robust device, it provides short-circuit protection, 5-kV rms isolation, 25-kV/μs common-mode transient immunity, enhanced system-level ESD performance, and IEC 60601 medical certification. The propagation delay is comparable to that of a standard hub and cable. Each side operates on a 3.1-V to 5.5-V supply, allowing direct connection to the bus. A fully isolated, powered USB interface can be implemented by adding an ADuM5000 isolated dc-to-dc converter. Available in a 16-lead SOIC package, the ADuM4160 is specified from –40°C to +105°C and priced at $4.89 in 1000s. August 2009 Quad high-speed LVDS Line Receiver The ADN4666 line receiver uses low-voltage differential signaling (LVDS) to achieve data rates of over 400 Mbps (200 MHz)—with 100-ps differential skew and 3.3-ns propagation delay. It accepts the ±350-mV differential input signals produced by an ADN4665 line driver—or similar LVDS device—and converts them into 3-V single-ended TTL/CMOS-compatible output signals. Active-high enable and disable inputs control all four receivers, switching the outputs to a high-impedance state when disabled. The receiver input pins are protected against ±15-kV ESD events. Operating on a single 3-V to 3.6-V supply, an ADN4666 with no load consumes 10 mA when enabled and 3 mA when disabled. Available in 16-lead SOIC and TSSOP packages, it is specified from –40°C to +85°C and priced at $1.16 in 1000s. 2-channel Digital Isolator provides enhanced ESD protection
The
ADuM3211 digital isolator provides enhanced
system-level ESD protection relative to IEC 61000-4 (ESD/burst/surge)
testing as compared to the ADuM1201. Using patented iCoupler®
technology, it provides superior performance at lower cost than optocouplers,
while eliminating the uncertain current-transfer ratios, nonlinear transfer
functions, and drift (with time and temperature) associated with optocouplers. Power consumption is as much as 90% lower, and no external
drivers or discrete devices are required. The isolation channels have
safety- and regulatory approvals from UL. Featuring 3-ns pulse-width
distortion, 3-ns channel-to-channel matching, July 2009 Four-channel Digital Isolators integrate 500-mW dc-to-dc converter
The ADuM640x use patented iCoupler®
technology—which combines high-speed CMOS with integrated
micro-transformers—to integrate a four-channel digital isolator with a
dc-to-dc converter, thus providing a complete isolation solution in a tiny
package. With
Quad LVDS Line Drivers
The
ADN4665
four-channel line driver uses low-voltage differential signaling (LVDS) to
achieve data rates of over 400 Mbps (200 MHz)—with 400-ps max differential
skew and 2-ns max propagation delay. Compatible with TTL and CMOS input
signals, they provide June 2009 Four-channel Digital Isolators provide reinforced isolation up to 5-kV The
ADuM4400/ADuM4401/ADuM4402 four-channel digital
isolators provide superior performance and lower cost than optocouplers.
Using patented iCoupler® technology, they combine
high-speed CMOS with integrated micro-transformers, eliminating the
uncertain current-transfer ratios, nonlinear transfer functions, and drift
(with time and temperature) associated with optocouplers. Power consumption
is as much as 90% less, and no external drivers or discrete devices are
required. Providing 5-kV reinforced isolation, they meet the safety- and
regulatory requirements of UL, CSA, and VDE, including IEC 60601-1 approval
for medical isolation. Featuring March 2009 Single and dual high-speed LVDS Line Drivers The single ADN4661 and dual ADN4663 line drivers use low-voltage differential signaling (LVDS) to achieve data rates of over 600 Mbps (300 MHz). Their flow-through pinout simplifies PCB layouts and allows separation between inputs and outputs. Compatible with TTL and CMOS input logic, they provide ±3.1-mA differential current outputs for driving twisted-pair cables. The transmitted signal develops ±355 mV across a termination resistor. This differential voltage can be converted to a TTL or CMOS logic level by the ADN4662 or ADN4664 line receiver. The output pins are protected against ±15-kV ESD events. Operating on a single 3-V to 3.6-V supply, the ADN4661/63 consume 4/8 mA with no load, and 7/10 mA when loaded. Available in 8-lead SOIC packages, they are specified from –40°C to +85°C and priced at $0.68/$0.80 in 1000s. Single and dual high-speed LVDS Line Receivers The single ADN4662 and dual ADN4664 line receivers use low-voltage differential signaling (LVDS) to achieve data rates of over 400 Mbps (200 MHz). Their flow-through pinout simplifies PCB layouts and allows separation between inputs and outputs. They accept the ±310-mV differential input signals produced by the ADN4661 or ADN4663 line driver—or similar LVDS device—and convert them into 3-V single-ended TTL/CMOS-compatible output signals. The input pins are protected against ±15-kV ESD events. Operating on a single 3-V to 3.6-V supply, the ADN4662/64 consume 5.4 mA with no load. Available in 8-lead SOIC packages, they are specified from –40°C to +85°C and priced at $0.68/$0.80 in 1000s. February 2009 16-Mbps full-duplex ESD-protected RS-485 Transceiver The ADM1491E ESD-protected RS-485 transceiver enables full-duplex communication on multipoint bus transmission lines at data rates up to 16 Mbps. Designed for balanced transmission in motor control applications, it complies with ANSI/TIA/EIA-485-A-1998 standards. The line pins are protected against electrostatic-discharge (ESD) events as large as ±8 kV. The device provides short-circuit protection, thermal shutdown, and fail-safe operation—which sets the outputs high when the inputs are floating. As many as 32 devices can share a single bus. Operating on a single 5-V supply, the ADM1491E consumes 1.2 mA with outputs enabled, and 0.8 mA with outputs disabled. Available in 10-lead MSOP and 14-lead SOIC packages, it is specified from –40°C to +85°C and priced from $1.15 in 1000s. December 2008 Two-channel Digital Isolators integrate 500-mW dc-to-dc converter
The
ADuM520x two-channel
digital isolators integrate a 500-mW
isoPower® dc-to-dc converter, offering a complete
isolation solution in a tiny package. Providing an isolated power supply and
superior performance to optocouplers, they use patented
iCoupler® technology, which combines high-speed CMOS with
integrated micro-transformers. This technology eliminates the uncertain
current-transfer ratios, nonlinear transfer functions, and drift (with time
and temperature) associated with optocouplers. Power consumption is up to
90% lower, and no external drivers or discrete devices are required.
Featuring 40-ns pulse-width distortion and 25-kV/μs common-mode transient
immunity, they can handle data rates from dc to 1/25 Mbps (A-/C-grades). Three channel configurations are available. The regulated
dc-to-dc converter outputs—3.3 V or 5 V with a Search for more information on Interface November 2009
October 2009
September 2009 Step-down DC-to-DC Converter provides two 2-A outputs or single 4-A output
The
ADP2114 high-efficiency step-down dc-to-dc
converter is available in six fixed-output options, from 0.8 V to 3.3 V, and
an adjustable-output option that can be set as low as 0.6 V. Featuring 1.5%
output accuracy and 95% efficiency, it can be configured to deliver a pair
of independent 2-A outputs, 1-A and 3-A outputs, or a single, interleaved
4-A output with reduced output ripple. The switching frequency—which can be
set to 300 kHz, 600 kHz, or 1.2 MHz—can be synchronized to an external clock
to minimize system noise—and optimized gate slew rate reduces EMI emissions.
The robust design features programmable soft-start time, short-circuit- and
thermal-overload protection, and under-voltage lockout. Operating on a
single 2.7-V to 5.5-V supply, the ADP2114 consumes 3.4 mA with dual
independent outputs, 3 mA with a single output, and 1 µA in
shutdown mode. Available in a 32-lead LFCSP package, it is specified
from Step-down DC-to-DC Converter provides single 3-A output The ADP2118 high-efficiency step-down dc-to-dc converter is available in six fixed-output options from 1.0 V to 3.3 V, and an adjustable-output option that can be set as low as 0.6 V. Featuring 1.5% accuracy and 95% efficiency, it delivers up to 3-A continuous output current—using pulse-width modulation for best stability and transient response and pulse-frequency modulation to save power at light loads. The switching frequency—which can be set to 600 kHz or 1.2 MHz—can be synchronized to an external clock to minimize system noise. The robust design features integrated soft start; over-voltage-, over-current-, and thermal-overload protection; and under-voltage lockout. Operating on a single 2.3-V to 5.5-V supply, the ADP2118 consumes 680 µA when switching, 100 µA when static, and 0.3 µA in shutdown mode. Available in a 16-lead LFCSP package, it is specified from –40°C to +125°C and priced at $1.90 in 1000s. High-speed, dual 4-A MOSFET Drivers provide thermal protection
The
ADP3623/ADP3624/ADP3625 and
ADP3633/ADP3634/ADP3635 dual high-speed, high-current MOSFET drivers provide
independent drive signals for two external N-channel MOSFETs used in
ac-to-dc- and isolated dc-to-dc power supplies, motor controllers, and
line-driver applications. An internal temperature sensor provides two levels
of thermal protection: an active-low open-drain warning at 135°C and
shutdown at 165°C. A shutdown input allows the device to be
disabled on command, by an over-voltage condition, or by the
over-temperature warning. The drivers feature 10-ns rise/fall times and
14-/22-ns propagation delays. Under-voltage lockout ensures safe startup and
shutdown. The ADP3623/33 have two
inverting drivers; the ADP3624/34
have two non-inverting drivers; and the
ADP3625/35 have one inverting
driver and one non-inverting driver. Operating with a 4.5-V to 18-V supply,
the ADP3623/24/25 have a 4.2-V
under-voltage threshold with July 2009 Four-channel Voltage Supervisor indicates OV/UV on positive/negative supplies The ADM2914 four-channel voltage supervisor monitors four power supplies and provides an active-low, open-drain alert signal when any of them experiences an under- or over-voltage condition. Two of the four inputs monitor positive supplies; the other two inputs can be independently configured to monitor either positive or negative supplies. The fault outputs are immune to power supply glitches; and an adjustable delay allows the supplies to stabilize after all faults have cleared. An input-supply shunt regulator enables the device to be run off of higher-voltage supplies. Two different versions are available: the -1 includes a latch function, while the -2 includes a disable function. Operating on a single 2.3-V to 6-V supply, the ADM2914 consumes 62 μA. Specified from –40°C to +125°C, it is available in a 16-lead QSOP package and priced at $3.99 in 1000s. Quad Voltage Supervisor monitors positive and negative supplies The ADM6339 microprocessor supervisor monitors four system-supply voltages, and asserts an active-low, open-drain reset output if any supply falls below its threshold (for positive voltages) or above its threshold (for negative voltages). The reset output stays low for 200 ms after all four voltages return to normal. Seventeen versions are available, with various combinations of fixed (–5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, 5 V) and adjustable thresholds. Operating on a single 1.0-V to 5.5-V supply, the ADM6339 consumes 55 μA. Available in a 6-lead SOT-23 package, it is specified from –40°C to +85°C and priced at $1.79 in 1000s. Dual flash LED Driver provides high power, high efficiency, and small size The ADP1655 high-efficiency driver provides two high-power outputs—up to 400 mA in flash mode and 160 mA in torch mode—to drive the white LEDs used in high-resolution camera phones, digital still cameras, and camcorders. Its 88% efficiency maximizes battery life, while improving picture quality in low-light environments. Timers, currents, and status readback are programmed via the I2C-compatible interface. The robust design incorporates multiple safety features, including soft start, flash timeout, current limiting, over-temperature protection, and over-voltage protection. Operating with a single 2.75 V to 5.5-V supply, the ADP1655 consumes 5.3 mA. Available in a 12-lead WLCSP package, it is specified from –40°C to +125°C and priced at $0.95 in 1000s. June 2009 Digital Controller for isolated power supplies
The
ADP1043 secondary-side controller for switch-mode
power supplies integrates all of the functions required to control isolated
Step-up DC-to-DC Switching Converters operate at 650/1300 kHz The ADP1612 and ADP1613 step-up converters are capable of supplying over 150 mA at voltages as high as 20 V, while respectively operating with a single 1.8-V to 5.5-V and 2.5-V to 5.5-V supply. Integrating a 1.4-/2.0-A, 0.13-ohm power switch with a current-mode, pulse-width modulated regulator, their output varies less than 1% with changes in input voltage, load current, and temperature. The operating frequency is pin-selectable and can be optimized for high efficiency or minimum external component size: At 650 kHz they provide 90% efficiency; at 1.3 MHz their circuit implementation occupies the smallest space, making them ideal for space-constrained environments in portable devices and liquid-crystal displays. The adjustable soft-start circuit prevents inrush currents, ensuring safe, predictable start-up conditions. The ADP1612/13 consume 2.2 mA in the switching state, 700 μA in the non-switching state, and 10 nA in shutdown mode. Available in 8-lead MSOP packages, they are specified from –40°C to 85°C and priced at $1.50/$1.20 in 1000s. Step-down DC-to-DC Converter provides 600 mA output at 95% efficiency
The
ADP2109 high-efficiency step-down dc-to-dc
converter is available in four fixed-output options—1.0 V, 1.2 V, 1.5 V, and
1.8 V—with 2% output accuracy. It uses high-speed, constant-frequency,
current-mode pulse-width-modulation (PWM) control to provide high stability
and fast transient response, reducing the switching frequency to improve
efficiency under light-load conditions. Requiring only three passive
external components, it can provide Synchronous, step-down DC-to-DC Converter provides 600 mA output
The
ADP2121 step-down dc-to-dc converter has a fixed
1.82-V output. It uses 6-MHz constant-frequency pulse-width-modulation (PWM)
to provide high stability and fast transient response, switching to
pulse-frequency modulation (PFM) to improve efficiency under light-load
conditions. Requiring only three passive external components, it can provide
Power Management Unit for imaging modules The ADP5020 power management unit—which comprises two step-down dc-to-dc converters, four power MOSFETS, a low-dropout regulator, and a power sequence controller—provides all of the power circuits required for a digital imaging module. Its high level of integration and reduced number of required external components make feasible a small, simple, low-cost, high-performance system. The three output voltages are digitally programmable: 2.5 V to 3.7 V at 600 mA; 1.1 V to 1.8 V at 250 mA; and 1.8 V to 3.3 V at 150 mA. The device can be activated via the I2C interface or a dedicated pin. The input is disconnected from the output during shutdown, reducing the input current to 1 μA. Under-voltage lockout prevents deep battery discharge, and soft-start prevents input current overshoot at startup. Operating with a single 2.4-V to 5.5-V supply, the ADP5020 consumes 10 mA in switching mode and 1 μA in standby mode. Available in a 20-lead LFCSP package, it is specified from –40°C to +125°C and priced at $1.50 in 1000s. 7-channel smart LED Driver includes charge pump, I2C interface The
ADP8860 smart LED driver—which combines a
programmable charge-pump driver with automatic phototransistor
control—changes current density according to ambient light conditions,
eliminating the need for a processor and allowing significant power savings
in mobile displays. As many as six LEDs can be independently driven at up to
30 mA; a seventh LED can be driven at up to 60 mA. Light intensity
thresholds, min/max LED current, and fade in/out times are all programmable
via the I2C interface. The two-capacitor charge-pump can source
240 mA. Automatic gain selection of 1×, 1.5×, or 2× maximizes its
efficiency. Safety features include soft start, under-voltage lockout, and
short-circuit-, over-voltage-, and over-temperature protection. Operating
with a single 2.5-V to 5.5-V supply, the ADP8860 consumes 4.5 mA in
switching mode and 0.3 μA in
standby mode. Available in 20-lead
LFCSP and March 2009 Low-Dropout Regulators drive loads of up to 300 A
The fixed-output
ADP170 and adjustable-output
ADP171
low-dropout regulators are available in a range of fixed- and
adjustable-output options from 0.8 V to 3.0 V, making them an ideal clean
power device for low-voltage analog-to-digital converters. With accuracy to
within ±1% initially and ±3% over line, load, and temperature, they achieve
fast transient response, 300-mA load-current capability, High-Side Power Switch is controlled by logic-level signal
The
ADP190 high-side power switch disconnects unused
loads from a power supply to extend battery life in mobile phones, digital
cameras, and audio devices. The P-channel MOSFET switching element can
handle continuous currents of up to 500 mA; its February 2009 Dual 12-V MOSFET Driver has high-side bootstrap, output disable The ADP3650 dual high-voltage MOSFET driver is optimized for driving the two external N-channel MOSFETs used in a synchronous buck converter. A single PWM signal generates both FET drives, providing non-overlapping drive signals and preventing shoot-through current. An output disable input prevents rapid discharge during system shutdown. Featuring 45-ns propagation delay and 25-ns transition time, both drivers can handle 3000-pF loads. In addition, the high-side driver can be bootstrapped to a floating supply to accommodate high slew rates. Operating with a 4.15-V to 13.2-V power supply, plus a 4-V to 26-V boost supply, the ADP3650 draws 2 mA. Specified from 0°C to +85°C, it is available in 8-lead LFCSP and SOIC packages and priced from $0.62 in 1000s. Keypad I/O Expander The ADP5588 port expander and keypad controller provides keypad scanning, debouncing and I/O generation, resulting in simplified routing, reduced processor involvement, and lower power consumption. Offloading key-scan and GPIO functions from the CPU, it enables the processor to control up to 18 data lines—which can be configured as an 8 x 10 keypad matrix, general-purpose I/Os, or light sensor inputs—via an I2C-compatible bus. Storing key presses and releases, and flagging them to the processor, the controller manages all mobile key scanning and decoding functions. This enables portable devices with QWERTY keypads to use three control lines instead of 18, reducing cost and improving reliability. A key-event counter allows the device to manage up to ten unprocessed key events, while the key-lock capability can trigger an interrupt when the lock sequence is activated. Two inputs can be configured for ambient light detection, ensuring efficient control of keypad backlighting. Operating on a 1.7-V to 3.0-V power supply, the ADP5588 draws 100 μA. Specified from –40°C to +85°C, it is available in a 24-lead LFCSP package and priced from $1.20 in 1000s. January 2009 Compact dual Low-Dropout Regulators drive loads up to 200 mA
The
ADP220/ADP221 high-efficiency low-dropout
regulators are available in multiple fixed-output-voltage options from 0.8 V
to 3.3 V. With accuracy to within ±1% initially and ±2% over line, load, and
temperature, they achieve fast transient response, 200-mA load-current
capability, 150-mV dropout voltage, and 76-dB power-supply rejection. Their
robust design features short-circuit and thermal-overload protection. The
ADP221 includes an active
pull-down to quickly discharge output loads. Operating on a single 2.5-V to
5.5-V supply, the ADP220/221 draw 60 μA with no load, 120 μA at full load,
and 100 nA in shutdown mode.
Available in 6-ball, 0.8-mm × Fixed-output Low-Dropout Regulators drive loads up to 0.8/1.2/2.0 A
The
ADP1752/ADP1754/ADP1740 low-dropout regulators are available in multiple
fixed-output-voltage options from 0.75 V to 2.5 V. Their specifications
include ±1% initial accuracy, ±2% accuracy over line, load, and temperature;
0.8/1.2/2.0-A load-current capability, 10-mV dropout voltage with a 100-mA
load, 70-/105-/160-mV dropout voltage at full load, and 65-dB power-supply
rejection. Their robust design features short-circuit protection, current
limiting, reverse current protection, thermal-overload protection,
programmable soft-start timing, and fast transient response. Cleaning up the
signal from switching regulators, these parts are ideal for powering
mixed-signal loads. Operating on a single 1.6-V to 3.6-V supply, the
ADP1752/54/40 draw 90 μA with a 500-μA load, 0.9/1.1/1.5 mA at full load,
and 2 μA in shutdown mode.
Available in Adjustable-output Low-Dropout Regulators drive loads up to 0.8/1.2/2.0 A
The
ADP1753/ADP1755/ADP1741 low-dropout regulators use an external divider to
set their output voltage from 0.75 V to 3.0 V. Their specifications include
±1% initial accuracy, ±2% accuracy over line, load, and temperature;
0.8/1.2/2.0-A load-current capability, 10-mV dropout voltage with a 100-mA
load, 70-/105-/160-mV dropout voltage at full load, and 65-dB power-supply
rejection. Their robust design features short-circuit protection, current
limiting, reverse current protection, thermal-overload protection,
programmable soft-start timing,
and fast transient response. Cleaning up the signal from switching
regulators, these parts are ideal for powering mixed-signal loads. Operating
on a single 1.6-V to 3.6-V supply, the ADP1753/55/41 draw 90 μA with a
500-μA load, 0.9/1.1/1.5 mA at full load, and 2 μA in
shutdown mode. Available in High-efficiency buck/boost DC-to-DC Converters drive loads up to 600/1000 mA The ADP2503 and ADP2504 high-efficiency step-up/step-down DC-to-DC converters are available in multiple fixed-output options from 2.8 V to 5.0 V with 2% initial accuracy. They use high-speed, constant-frequency, current-mode pulse-width-modulation (PWM) control to provide high stability and fast transient response; an optional pulse-skipping mode improves efficiency under light-load conditions. Their robust design features a fixed 200-µs soft-start time, short-circuit protection, thermal-overload protection, and under-voltage lockout. Requiring only three passive external components, the ADP2503/04 provide output currents up to 600/1000 mA. Operating on a single 2.3-V to 5.5-V supply, they draw 38 μA with no load and 0.2 μA in shutdown mode. Available in 10-lead, 3-mm × 3-mm LFCSP packages, they are specified from –40°C to +85°C and priced at $1.30/$1.40 in 1000s. December 2008 Low-Dropout Regulator drives loads of up to 100-mA The ADP120 high-efficiency low-dropout regulator is available in multiple fixed-output-voltage options from 1.2 V to 3.3 V. With accuracy to within ±1% initially and ±3% over line, load, and temperature, it achieves fast transient response, 100-mA load-current capability, 60-mV dropout voltage, and 73-dB power-supply rejection. Its robust design features short-circuit and thermal-overload protection. Operating on a single 2.3-V to 5.5-V supply, the ADP120 draws 11 μA with no load, 22 μA at full load, and 100 A in shutdown mode. Available in a 5-lead TSOT-23 package, it is specified from –40°C to +125°C and priced at $0.26 in 1000s. Step-down DC-to-DC Converter provides 600 mA output at 95% efficiency The ADP2108 high-efficiency step-down dc-to-dc converter is available in 11 fixed-output options—from 1.0 V to 3.3 V—with 2% output accuracy. It uses high-speed, constant-frequency, current-mode pulse-width-modulation (PWM) control to provide high stability and fast transient response, switching to pulse-frequency modulation (PFM) to improve efficiency under light-load conditions. Requiring only three passive external components, it can provide 600-mA output current with up to 95% efficiency. Its robust design features a fixed 550-µs soft-start time, short-circuit- and thermal-overload protection, and under-voltage lockout. Operating with a single 2.3-V to 5.5-V supply, the ADP2108 consumes 18 µA with no load and 0.2-μA shutdown mode. Available in a 5-ball WLCSP package, it is specified from –40°C to +125°C and priced at $0.80 in 1000s. Programmable Backlight Driver with ambient-light-sensor input The ADP5501 LED backlight driver controls a mobile handset’s backlight intensity, on/off timing, dimming, and fading without intervention from the main processor. Adjusting the backlight intensity based upon the ambient light level, it minimizes power consumption and extends battery life. Its I2C-compatible interface and single-line interrupt reduces the number of lines required to connect to the baseband processor across the flexible cable. It can drive up to six white LEDs, with 128 programmable current levels up to 30 mA for the backlight—as well as three auxiliary LEDs, with 64 programmable current levels up to 14 mA. Operating on a single 2.7-V to 5.5-V supply, the ADP5501 consumes 25 µA in standby mode and 0.1 µA in shutdown mode. Available in a 24-lead LFCSP package, it is specified from –40°C to +125°C and priced at $0.88 in 1000s. Isolated DC-to-DC Converter The ADuM5000 isoPower® isolated dc-to-dc converter uses patented iCoupler® technology, which combines high-speed CMOS with integrated micro-transformers to provide up to 500 mW of isolated, regulated power in a small form-factor. The regulated outputs—3.3 V or 5 V with a 5-V input supply, or 3.3 V with a 3.3-V input—feature 1-mV/V line regulation, 1% load regulation, and 35% efficiency down to 20% of full load. The 2500 Vrms isolation, which has safety- and regulatory approvals of UL, CSA, and VDE pending, provides 25-kV/μs common-mode transient immunity. The ADuM5000 can be combined with the ADuM520x and ADuM540x isolators to achieve higher output power. Available in a 16-lead SOIC package, it is specified from –40°C to +105°C and priced at $3.16 in 1000s. Search for more information on Power Management Search for more information on Thermal Management Search for more information on References RF, IF, Broadband, and Wireless November 2009
September 2009 Network Clock Generator/Synchronizer accepts up to four reference inputs The
AD9547
clock-generator/synchronizer derives a
low-jitter output clock that is synchronous to one of two differential—or
four single-ended—input references. The digital phase-locked loop reduces
jitter and phase noise, and holdover circuitry maintains the clock
frequency, even in situations where all references have failed. Working with
input references from 1 kHz to 750 MHz, the device can provide output
frequencies up to 450 MHz, making it ideal for SONET/SDH synchronous optical
networks up to OC-192. Operating on
1.8-V and 3.3-V supplies, the AD9547 dissipates 900 mW with all circuits
running and 13 mW in power-down
mode. Specified from Clock Generator converts low-frequency input to high-frequency output
The
AD9552 clock generator accepts an input reference
between 6.6 MHz and 125 MHz and provides an output clock at up to 900 MHz—replacing high-frequency crystal oscillators and resonators in
SONET/SDH, Fibre Channel, 7-output Clock Generator for Fibre Channel/Ethernet applications The AD9572 multi-output clock generator uses high-performance, low-jitter, integer-N PLLs with fixed output- and feedback divider ratios to provide 25-MHz and 33-MHz CMOS outputs—and one 156.25-MHz, two 106.25-MHz, and two 100-MHz or 125-MHz LVPECL or LVDS outputs. No external components are required for the loop filters, saving space, cost, and design time. Operating on a single 3.0 to 3.6-V supply, the AD9572 dissipates 1075 mW with LVPECL outputs and 715 mW with LVDS outputs. Specified from –40°C to +85°C, it is available in a 40-lead LFCSP package and priced at $6.89 in 1000s. 2-output Clock Generator for PCI-Express applications The AD9573 two-output clock generator uses high-performance, low-jitter, integer-N PLLs with fixed output- and feedback divider ratios to provide a 100-MHz LVDS output and a 33.33-MHz LVCMOS output. No external components are required for the loop filters, saving space, cost, and design time. Operating on a single 3.0 to 3.6-V supply, the AD9573 dissipates 235 mW. Specified from –40°C to +85°C, it is available in a 10-lead TSSOP package and priced at $6.75 in 1000s. SiGe Clock Fanout Buffer selects between two inputs, provides eight outputs The ADCLK948 clock buffer, designed for high-speed, low-jitter applications provides eight LVPECL output clocks from one of two selectable differential input clocks. Fabricated on an advanced complementary-bipolar silicon-germanium (SiGe) process, it operates at up to 4.8-GHz, with 210-ps propagation delay, 75-ps rise/fall times, and 75-fs random jitter. The inputs, which include 100-ohm termination resistors, accept LVPECL, CML, CMOS, and LVDS signals. The output drivers, compatible with ECL or LVPECL levels, provide 1.6-V differential signals into 50-ohm loads. Operating on a single 2.97-V to 3.63-V supply, the ADCLK948 consumes 288 mA from the positive supply and 96 mA from the negative supply. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.50 in 1000s. SiGe Clock Fanout Buffer selects between two inputs, provides ten outputs The ADCLK950 clock buffer, designed for high-speed, low-jitter applications provides ten LVPECL output clocks from one of two selectable differential input clocks. Fabricated on an advanced complementary-bipolar silicon-germanium (SiGe) process, it operates at up to 4.8-GHz, with 210-ps propagation delay, 75-ps rise/fall times, and 75-fs random jitter. The inputs, which include 100-ohm termination resistors, accept LVPECL, CML, CMOS, and LVDS signals. The output drivers, compatible with ECL or LVPECL levels, provide 1.6-V differential signals into 50-ohm loads. Operating on a single 2.97-V to 3.63-V supply, the ADCLK950 consumes 346 mA from the positive supply and 106 mA from the negative supply. Available in a 40-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.58 in 1000s. 500-MHz to 1700-MHz Balanced Mixer includes LO buffer, IF amplifier, RF balun The ADL5357 balanced mixer combines RF inputs in the 500-MHz to 1700-MHz range with a local oscillator (LO) to produce IF outputs in the 30-MHz to 450-MHz range. A highly linear doubly balanced passive mixer core, integrated RF and LO balancing circuitry, and an on-chip RF balun using high-side LO injection allow single-ended operation. A high-linearity IF buffer amp follows the mixer core. The balanced design achieves low leakage, low intermodulation distortion, and high input linearity, ideal properties for cellular base stations. Operating on a single 3.0-V to 5.5-V supply, the ADL5357 consumes 100 mA in normal mode and 150 µA in power-down mode. Available in a 20-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.98 in 1000s. 400-MHz to 6-GHz Quadrature Demodulator The ADL5380 broadband quadrature demodulator accepts a fully differential IF/RF input in the 400-MHz to 6.0-GHz range and a local oscillator (LO)—and provides fully differential buffered I and Q baseband outputs. Its 10.9-dB noise figure (NF) at 900 MHz, 11.6-dBm input compression point (P1dB), and 30-dBm input third-order intercept (IP3) provide the dynamic range required for direct-conversion architectures; and its 0.07-dB quadrature amplitude balance and 0.2° phase balance ensure excellent demodulation accuracy. Operating on a single 4.75-V to 5.25-V supply, the ADL5280 consumes 245 mA when enabled and 145 mA when disabled. Available in a 24-lead LFCSP package, it is specified from –40°C to +85°C and priced at $5.28 in 1000s. Dual-loop Laser-Diode Driver operates from 50 Mbps to 3.3 Gbps The ADN2872 laser-diode driver supports single-rate data transmission from 50 Mbps to 3.3 Gbps or multi-rate operation from 155 Mbps to 3.3 Gbps. The dual-loop control of average power and extinction ratio automatically compensates for variations in laser characteristics over time and temperature. Average power and extinction ratio can be set with DACs, trim resistors, or digital potentiometers. The device provides bias- and modulation current monitoring, as well as laser-fail and automatic laser-shutdown (ALS) alarms. Fully compliant with the Small Form Factor Pluggable (SFF/SFP) Multisource Agreement (MSA) and SFF-8472 digital diagnostics specifications, it features a bias-current range of 2 mA to 100 mA and a modulation-current range of 5 mA to 90 mA. It interfaces easily with an ADuC7019 or ADuC702x MicroConverter and an ADN289x limiting amplifier to implement a complete optical transceiver. Operating on a single 3.0-V to 3.6-V supply, the ADN2872 consumes only 30 mA. Available in a 24-lead LFCSP package, it is specified from –40°C to +85°C and priced at $4.78 in 1000s. August 2009 Low-power Clock Fanout Buffer provides up to 6 LVDS or 12 CMOS outputs The ADCLK846 clock buffer, designed for low-power, low-jitter applications, provides up to 6 LVDS or 12 CMOS outputs. The LVDS outputs operate at up to 1.2 GHz, with 2-ns propagation delay, 135-ps rise/fall times, and 150-fs broadband random jitter; the CMOS outputs operate at up to 250 MHz, with 3.2-ns propagation delay, 525-ps rise/fall times, and 100-fs broadband random jitter. The six output drivers are divided into banks of two and four; a separate control line configures each bank for LVDS or CMOS compatibility. The inputs accept LVPECL, LVDS, HSTL, CML, and CMOS signals. Operating on a single 1.8-V supply, the ADCLK846 consumes 155 mA at full speed with CMOS outputs, 110 mA with LVDS outputs, and 3 mA in sleep mode. Available in a 24-lead LFCSP package, it is specified from –40°C to +85°C and priced at $4.75 in 1000s. 1200-MHz to 2500-MHz Balanced Mixer includes LO buffer, IF amplifier, RF balun The ADL5355 balanced mixer mixes RF inputs in the 1200-MHz to 2500-MHz range with a local oscillator (LO) to produce IF outputs in the 30-MHz to 450-MHz range. A highly linear doubly balanced passive mixer core, integrated RF and LO balancing circuitry, and an on-chip RF balun using low-side LO injection allow single-ended operation. With its low leakage, low intermodulation distortion, and high input linearity, achieved through balanced design, it is ideal for cellular base stations. A high-linearity IF buffer amp follows the mixer core. Device specifications include 8.4-dB conversion gain, 9.2-dB single-sideband noise figure, 27-dBm input third-order intercept (IP3), and 10.4-dBm input compression point (P1dB). Operating on a single 3.0-V to 5.5-V supply, the ADL5355 consumes 190 mA at 5 V, 125 mA at 3.3 V, and 150 μA in power-down mode. Available in a 20-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.98 in 1000s. June 2009 RMS Power Detector provides 50-dB dynamic range from 50 Hz to 6 GHz
The
AD8363 TruPwr™ rms-responding power detector
measures RF signal power over the 50-Hz to 6-GHz frequency range—and
provides a dc output voltage proportional to the logarithm of the rms value
of the input voltage, with Network Clock Generator/Synchronizer accepts up to eight reference inputs The AD9548 eight-input clock-generator/synchronizer derives a low-jitter output clock that is synchronous to one of four differential, or eight single-ended, input references. The digital phase-locked loop reduces jitter and phase noise, and holdover circuitry maintains the clock frequency, even in situations where all references have failed. References as low as 1-pps (pulses per second) can be used, enabling designers to synchronize their systems to a generic GPS reference input. The device can provide output frequencies up to 750 MHz, making it ideal for SONET/SDH synchronous optical networks up to OC-192. Operating on 1.8-V and 3.3-V supplies, the AD9548 dissipates 900 mW with all circuits running and 13 mW in power-down mode. Specified from –40°C to +85°C, it is available in an 88-lead LFCSP package and priced at $24.82 in 1000s. Multiservice Clock Generator The AD9551 clock generator accepts one or two reference input signals and generates one or two output signals that are harmonically related to the inputs by a factor of 1 to 63. Precisely translating the reference frequency to the desired output frequency, its input receivers and output drivers enable either single-ended or differential operation. It replaces as many as five oscillators previously required to support forward error correction (FEC), holdover, switchover, and precise frequency generation in multi-service network switches, routers, and line cards. On-chip reference monitoring and switchover circuitry synchronizes the two references to prevent phase perturbations at the output in the event of a reference failure. The device accepts input clocks between 19.44 MHz and 806 MHz, and provides output clocks between 10 MHz and 900 MHz. It is compatible with LVPECL, LVDS, and CMOS logic levels. Operating on a single 3.3-V supply, the AD9551 consumes 169 mA. Specified from –40°C to +85°C, it is available in a 40-lead LFCSP package and priced at $14.75 in 1000s. Low-power Clock Fanout Buffer provides up to 12 LVDS or 24 CMOS outputs The ADCLK854 clock buffer, designed for low-power, low-jitter applications, selects between two inputs and provides up to 12 LVDS or 24 CMOS outputs. The LVDS outputs operate at up to 1.2 GHz, with 2-ns propagation delay, 135-ps rise/fall times, and 150-fs random jitter; the CMOS outputs operate at up to 250 MHz, with 3.2-ns propagation delay, 525-ps rise/fall times, and 100-fs random jitter. Three control lines configure the three banks of output drivers for LVDS or CMOS compatibility. The inputs accept LVPECL, LVDS, HSTL, CML, and CMOS signals. Operating on a single 1.8-V supply, the ADCLK854 consumes 115 mA with CMOS outputs, 84 mA with LVDS outputs, and 3 mA in sleep mode. Available in a 48-lead LFCSP package, it is specified from –40°C to +85°C and priced at $5.95 in 1000s. SiGe Clock Fanout Buffer provides six LVPECL outputs The ADCLK946 clock buffer, designed for high-speed, low-jitter applications provides six LVPECL output clocks from a single input clock. Fabricated on an advanced complementary-bipolar silicon-germanium (SiGe) process, it operates at up to 4.8-GHz, with 185-ps propagation delay, 75-ps rise/fall times, and 75-fs random jitter. The input, which includes 100-ohm center-tapped termination resistors, accepts LVPECL, CML, CMOS, and LVDS signals. The output drivers, compatible with ECL or LVPECL levels, provide 1.6-V differential signals into 50-ohm loads. Operating on a 3.3-V supply, the ADCLK946 consumes 90 mA from the positive supply and 245 mA from the negative supply. Available in a 24-lead LFCSP package, it is specified from –40°C to +85°C and priced at $6.25 in 1000s. May 2009 Ultrafast SiGe Clock Buffer selects between two inputs, provides 12 outputs
The
ADCLK954 clock buffer, designed for high-speed,
low-jitter applications, selects between two inputs and provides 12 outputs.
Fabricated on an advanced complementary-bipolar silicon-germanium (SiGe)
process, it operates at up to 4.8-GHz, with 210-ps propagation delay, 75-ps
rise/fall times, and 75-fs random jitter. The inputs, which include March 2009 Quadrature Modulator, log detector, and VVA operates from 50 MHz to 2200 MHz
The
ADL5386 broadband quadrature modulator, accepting
two differential baseband inputs and a local oscillator, provides a
modulated IF/RF output in the 50-MHz to 2.2-GHz range. The highly integrated
device also includes a logarithmic power detector and a voltage-variable
attenuator. The 700-MHz input bandwidth, 11-dBm output compression (P1dB),
and –160-dBm/Hz noise floor make it ideal for broadband wireless access
systems, microwave radio links, cable modem termination systems, and
cellular infrastructure equipment. Operating on a single 4.75-V to 5.25-V
supply, the ADL5386 consumes 230 mA when
enabled and 2.2 mA in
sleep mode. Available in a 40-lead
LFCSP package, it is specified from 11.3-Gbps Differential Laser Diode Driver has active back termination The ADN2526 laser-diode driver supports data transmission at up to 11.3 Gbps. Providing 10 mA to 100 mA bias- and 10 mA to 80 mA differential modulation currents, it directly modulates packaged laser diodes having a differential resistance ranging from 5 ohms to 50 ohms. The active back termination absorbs signal reflections from the transmission line, enabling excellent optical eye quality even with poorly terminated lines. Flexible voltage control allows the implementation of average-optical-power and extinction-ratio-control schemes. Automatic laser shutdown allows bias- and modulation currents to be shut down when required. Fully compliant with Small Form Factor Pluggable (SFP+) Multisource Agreement (MSA) specifications, the device enables compact modules with enhanced ESD protection. Operating on a single 3-V to 3.6-V supply, the ADN2526 consumes 46 mA. Available in a 16-lead LFCSP package, it is specified from –40°C to +85°C and priced at $21.14 in 1000s. Multirate Clock- and Data Recovery IC with deserializer The ADN2855 burst-mode clock- and data-recovery IC is designed for optical line terminal receivers. Operating rates of 155.52 Mbps, 622.08 Mbps, 1244.16 Mbps, or 1250.00 Mbps are selected via the I2C interface. Frequency lock and data alignment occur within 12 bits of the start of the preamble. The output clock can be full rate or half rate for a double-data-rate interface to an FPGA or ASIC. The recovered data output is available via a 4-bit parallel LVDS interface. Operating on a single 3-V to 3.6-V supply, the ADN2855 consumes 250 mA with the deserializer operating, or 204 mA in serial-output mode. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and priced at $22.04 in 1000s. January 2009 Dual VDSL/VDSL2 Line Driver with shutdown The AD8398A comprises two high-speed voltage-feedback operational amplifiers. Their 450-mA peak output current, 85-MHz bandwidth, fast slew rate, and 18.4-V p-p differential output swing make the device an ideal line driver for ADSL2+, VDSL2, and power line communications (PLC) applications. Four operating modes are supported: full power, medium power, low power, and complete power down, allowing power and performance to be tailored to the application. Operating on a single 12-V supply, the AD8398A consumes only 0.7 mA in power-down mode. Specified from –40°C to +85°C, it is available in a 16-lead thermally-enhanced LFCSP package and priced at $1.40 in 1000s. Wideband PLL Synthesizer with integrated VCO The ADF4350 combines a wideband PLL synthesizer and a voltage-controlled oscillator (VCO). Using integer- or fraction-N modes, the fundamental output frequency can range from 2200 MHz to 4400 MHz. Auxiliary divide-by-1/2/4/8/16 circuits allow generation of RF output frequencies as low as 137.5 MHz. The RF output can be muted via hardware or software. An auxiliary RF output can be powered down when not in use. The typical rms jitter is 0.5-ps. The ADF4350 operates on a 3.0-V to 3.6-V supply and is compatible with 1.8-V logic. Available in a 32-lead LFCSP package, it is specified from –40°C to +85°C and priced at $10.30 in 1000s. 450-MHz to 6000-MHz Crest-Factor Detector The ADL5502 crest-factor detector combines a true-rms power detector and an envelope detector to accurately determine the crest factor (peak/rms ratio) of a modulated signal in the 450-MHz to 6000-MHz range. It is ideal for measuring high-crest-factor signals, such as those found in CDMA2000, W-CDMA, and QPSK-/QAM-based OFDM waveforms. The rms detector has a linear conversion gain of 1.8 V/Vrms and exhibits virtually zero error even when measuring signals with crest factors as large as 11 dB. The envelope detector has a conversion gain of 1.2 V/V and can be toggled between real-time envelope and peak-hold measurements. Operating with a 2.5-V to 3.3-V supply, the ADL5502 consumes 3 mA in normal mode and 1 μA when disabled. Available in an 8-ball WLCSP package, it is specified from –40°C to +85°C and priced at $5.97 in 1000s. December 2008 Clock Generator has 12 LVDS/24 CMOS outputs
The
AD9522-x clock generator derives up to 12
low-voltage, differential signaling (LVDS) or 24 CMOS clocks from a single
reference frequency. Integrating a complete PLL with VCO, programmable
dividers, and configurable output buffers, it performs with sub-picosecond
jitter. Five (-x) versions are
available, with on-chip VCO center-frequencies ranging from 1.4 GHz to 2.95
GHz. Alternatively, an external VCO can be used at frequencies up to
2.4 GHz. Onboard EEPROM allows users to program their own unique start up
conditions so that no field programming is required. Accepting one
differential- or two single-ended references, at frequencies up to 250 MHz,
the devices provide four groups of three LVDS clocks at frequencies up to
800 MHz. Programmable dividers, with a divide ratio of 1 to 32, set the
output frequency and the coarse delay for each group. Any of the LVDS
outputs can be reconfigured as two 1-MHz to 4-GHz Logarithmic Detector/Controller has 80-dB dynamic range
The
ADL5513 demodulating logarithmic amplifier can
accurately convert an RF input signal into a temperature-stable dc output
voltage proportional to the logarithm of the RF input voltage. Operating in
the 1-MHz-to-4-GHz frequency range, the device has 80-dB dynamic range. Used
in detector or controller modes, it can be configured to measure RF power or
to provide a control voltage to a power amplifier. The logarithmic slope is
21 mV/dB, and the intercept is 400-MHz to 4000-MHz Low-Noise Amplifiers
The
ADL5521/ADL5523 high-performance GaAs pHEMT
low-noise amplifiers (LNA) provide 20.8-/21.5-dB gain over the 400-MHz to
4000-MHz frequency band. Used in single-down-conversion-IF-sampling- and
direct-conversion receivers, they feature 21.8-/21.0-dBm input compression
point (P1dB), 37.0-/34.0-dBm output third-order intercept (OIP3), 0.8-dB
noise figure (NF), and matched 50-ohm inputs and outputs. The ADL5521/23
consume 30 mA when operating on a 3-V supply and 60 mA when operating on a
5-V supply. Available in 8-lead LFCSP packages, they are specified from
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 2009 Xstream™ 6.5-Gbps dual-lane 2:1 Multiplexer/Demultiplexer The
AD8155 asynchronous, protocol-agnostic, dual-lane
2:1 switch provides a total of six differential current-mode logic (CML)
inputs and six differential CML outputs arranged as a 2:1 multiplexer and a
2:1 demultiplexer. Supporting NRZ signaling at up to 6.5 Gbps, each lane
offers loss-of-signal detection, and programmable receive equalization,
output pre-emphasis, and output levels. The demultiplexing path implements
unicast or bicast capability, allowing the part to support 1+1 or 1:1
redundancy. The device features low latency, very low channel-to-channel
skew, on-chip 50-ohm termination resistors, and P/N pair inversion for
routing flexibility. Operating with 1.8-V and 3.3-V supplies, the AD8155
consumes 2 W. Available in a 64-lead LFCSP package, it is specified from
–40°C to 8-channel CMOS Multiplexer features 4.5-ohm on resistance The ADG1608 analog multiplexer switches one of eight inputs to a common output, as determined by three address lines. It features 4.5-ohm on resistance, 0.12-ohm channel-to-channel match, and 1-ohm variation over a ±4.5-V signal range, ideal characteristics for data acquisition and gain-switching applications that require low distortion. Dynamic specifications include 24-pC charge injection, 150-/178-ns switching speed, and 40-MHz bandwidth. Fully specified at each of ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1608 consumes less than 0.01 μW. Available in 16-lead LFCSP and TSSOP packages, it is specified from –40°C to +125°C and priced at $1.98 in 1000s. 4-channel differential CMOS Multiplexer features 4.5-ohm on resistance The
ADG1609 analog multiplexer switches one of four
differential inputs to a common differential output, as determined by two
address lines. It features 4.5-ohm on resistance, 0.12-ohm channel-to-channel match, and 1-ohm
variation over a ±4.5-V signal range, ideal characteristics for data
acquisition and gain-switching applications that require low distortion.
Dynamic specifications include 24-pC charge injection, 150-/178-ns (ton/toff)
switching speed, and 71-MHz bandwidth. Fully specified at each of ±5-V,
+12-V, +5-V, and Triple CMOS SPDT Switch features 4.5-ohm on resistance The ADG1633 triple SPDT switch features 4.5-ohm on resistance, 0.12-ohm channel-to-channel match, and 1-ohm variation over a ±4.5-V signal range, ideal characteristics for data-acquisition and gain-switching applications that require low distortion. Dynamic specifications include 12.5-pC charge injection, 88-/232-ns (ton/toff) switching speed, and 103-MHz bandwidth. Fully specified at each of ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1633 consumes less than 0.01 μW. Available in 16-lead LFCSP and TSSOP packages, it is specified from –40°C to +125°C and priced at $1.72 in 1000s. Quad CMOS SPDT Switch features 4.5-ohm on resistance The ADG1634 quad SPDT switch features 4.5-ohm on resistance, 0.12-ohm channel-to-channel match, and 1-ohm variation over a ±4.5-V signal range, ideal characteristics for data-acquisition and gain-switching applications that require low distortion. Dynamic specifications include 12.5-pC charge injection, 88-/232-ns (ton/toff) switching speed, and 103-MHz bandwidth. Fully specified at each of ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1634 consumes less than 0.01 μW. Available in 20-lead LFCSP and TSSOP packages, it is specified from –40°C to +125°C and priced at $2.35 in 1000s. April 2009 4:1 iCMOS Multiplexer features 1-ohm on resistance The ADG1604 analog multiplexer switches one of four inputs to a common output, as determined by three address lines. Fabricated on ADI’s industrial CMOS (iCMOS™) process, it features 1-ohm on resistance, 0.04-ohm channel-to-channel match, and 0.2-ohm variation over a ±4.5-V signal range, making it ideal for data acquisition and gain-switching applications that require low distortion. Dynamic specifications include 140-pC charge injection, 200-ns switching speed, and 15-MHz bandwidth. Fully specified with ±5-V, +12-V, +5-V, and +3.3-V supplies, the ADG1604 consumes less than 0.01 μW. Available in 16-lead LFCSP and 14-lead TSSOP packages, it is specified from –40°C to +125°C and priced at $1.83 in 1000s. Quad SPST iCMOS Switches feature 1-ohm on resistance
The
ADG1611,
ADG1612, and
ADG1613 quad SPST switches
are designed on ADI’s industrial CMOS (iCMOS™)
process, which combines high-voltage CMOS and bipolar technologies.
Featuring 1-ohm on-resistance, 0.04-ohm channel-to-channel match, and
Dual iCMOS SPDT Switch features 1-ohm on resistance
The
ADG1636 dual SPDT switch is fabricated on ADI’s
industrial CMOS (iCMOS™)
process, which combines high-voltage CMOS- and bipolar technologies.
Featuring 1-ohm on resistance,
0.04-ohm channel-to-channel match, and December 2008 iCMOS SPST Switch features 1.6-ohm on resistance The ADG1517 SPST switch is designed on ADI’s industrial CMOS (iCMOS™) process, which combines high-voltage CMOS and bipolar technologies. Featuring 1.6-ohm on-resistance with 0.4-ohm variation over a 0-to-10-V signal range, it is ideal for data-acquisition, gain-switching, and audio/video signal-routing applications that require low distortion. The low power dissipation makes it a good choice for battery-powered equipment. Dynamic specifications include 70-pC charge injection, 135-ns switching speed, and 65-MHz bandwidth. Fully specified a single 15-V supply, the ADG1517 consumes 1 μA max. Available in an 8-lead LFCSP package, it is specified from –40°C to +125°C and priced at $1.44 in 1000s. 300-MHz, 32 × 32 Analog Crosspoint Switches The
ADV3200/ADV3201 analog crosspoint switches consist of 1024 switches
arranged in a 32 × 32 array. Providing gains of +1/+2, the switches feature
300-MHz bandwidth, 400-V/μs
slew rate, 6-ns settling time, –80-dB isolation, 0.06/0.1% differential gain
error, 0.06/0.03° differential phase error, and 0.1-dB flatness to 60 MHz,
making them ideal for routing high-speed RGB and component-video signals.
The 32 independent output buffers can be put into a high-impedance state,
allowing outputs to be paralleled and minimizing bus loading. The ADV3200
operates with a single 300-MHz, 32 × 16 Analog Crosspoint Switches The
ADV3202/ADV3203 analog crosspoint switches consist of 512 switches
arranged in a 32 × 16 array. Providing gains of +1/+2, the switches feature
300-MHz bandwidth, 400-V/μs
slew rate, 6-ns settling time, –80-dB isolation, 0.06/0.1% differential gain
error, 0.06/0.03° differential phase error, and 0.1-dB flatness to 60 MHz,
making them ideal for routing high-speed RGB and component-video signals.
The 16 independent output buffers can be put into a high-impedance state,
allowing outputs to be paralleled and minimizing bus loading. The ADV3202
operates with a single Switches and Multiplexers Home Page Search for more information on Switches Search for more information on Multiplexers
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