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These front-line products are on their way to being
fully released. With samples and prototype quantities normally available from
stock, these products are suitable for evaluation and low-volume designs today,
and for high-volume designs in the near future. Click on the model number for
the latest data sheets and other information. This page highlights products that
have been announced in the past twelve months.
Products that have been announced in the two most recent months are flagged
as 
.
Accelerometers, Gyros, and Temperature Sensors
November 2009
The
ADIS16367 complete six-degrees-of-freedom
Inertial Sensing System includes a 3-axis gyroscope with ±300°/s, ±600°/s,
and ±1200°/s range settings; a 3-axis accelerometer with ±18-g range; and a temperature sensor. It provides 14-bit digital data
proportional to the angular rate about—and the acceleration along—the
X-,
Y-, and
Z-axes—and 12-bit digital data
proportional to the on-chip temperature, power-supply voltage, and voltage on an
auxiliary analog input. An auxiliary DAC provides an analog output with 12-bit
resolution and a 3.3-V full-scale range. The device is fully calibrated for
sensitivity, bias, axial alignment, and linear acceleration; and dynamically
compensated from –40°C to +85°C. Functionally complete, it includes programmable
self-test, power management, and alarms. All data and commands are communicated
via an SPI-compatible serial interface.
July 2009
The ADIS16362 complete six-degrees-of-freedom Inertial Sensing System includes a 3-axis gyroscope with ±75°/s, ±150°/s, and ±300°/s range settings; a 3-axis accelerometer with ±1.7-g range; and a temperature sensor. It provides 14-bit digital data proportional to the angular rate about—and the acceleration along—the X-, Y-, and Z-axes—and 12-bit digital data proportional to the on-chip temperature, power-supply voltage, and voltage on an auxiliary analog input. An auxiliary DAC provides an analog output with 12-bit resolution and a 2.5-V full-scale range. The device is fully calibrated for sensitivity, bias, axial alignment, and linear acceleration; and dynamically compensated from –20°C to +70°C. Functionally complete, it includes programmable self-test, power management, and alarms. All data and commands are communicated via an SPI-compatible serial interface.
June 2009
The ADIS16220 iSensor® Digital Vibration Sensor combines a ±70-g single-axis iMEMS® accelerometer with a flexible, low-power signal processor. The 22-kHz sensor bandwidth and 100-ksps sample rate are well-suited to machine-health applications; an averaging/decimating filter optimizes operation for lower bandwidth applications. The device can store 1K samples using automatic, manual, or event-capture data collection modes. It also measures temperature and supply voltage, captures peaks, and provides a condition-based alarm function.
The ADIS16260 and ADIS16265 iSensor® Angular-Rate Measurement Systems combine an iMEMS® yaw-rate gyroscope with embedded signal processing to provide a compact, factory-calibrated, tunable digital sensor with an SPI-compatible output. Sampling at up to 2.048 ksps, it measures angular rate about the Z-axis—with ±80°/s, ±160°/s, ±320°/s range settings—as well as temperature, supply voltage, and the voltage on an auxiliary input. It also includes an auxiliary DAC, digital self test, and configurable alarms.
May 2009
The ADXL346 low-power, digital-output, 3-Axis Accelerometer measures dynamic acceleration (motion, shock, or vibration) and static acceleration (tilt or gravity) over a user-selectable ±2-/±4-/±8-/±16-g range, with 10-/11-/12-/13-bit max resolution, 0.5% nonlinearity, and 0.02% stability over temperature. Measurement bandwidths from 6.25 Hz to 3200 Hz can be selected to suit the application. Special built-in motion-detection functions—including activity, tap/double tap, and free-fall sensing—can be mapped to interrupt output pins. A 32-level FIFO minimizes host-processor intervention. Data is available via an SPI- or I2C-compatible serial interface. Housed in a small, low-profile, 3-mm × 3-mm × 1-mm package, the device can survive 10,000-g shocks.
January 2009
The ADXL327/ADXL325/ADXL326 low-power, analog-output, 3-Axis Accelerometers measure dynamic acceleration (motion, shock, or vibration) and static acceleration (tilt or gravity) over ±2-/±6-/±16-g ranges, with 0.2/0.2/0.3% nonlinearity and 0.01%/°C temperature stability. Measurement bandwidths can be selected to suit the application, from 0.5 Hz to 1600 Hz for X and Y axes, and from 0.5 Hz to 550 Hz for the Z axis. Housed in small, low-profile, 4-mm × 4-mm × 1.45-mm packages, they can survive 10,000-g shocks.
The
ADXL345 low-power, digital-output, 3-Axis
Accelerometer measures dynamic acceleration (motion, shock, or vibration)
and static acceleration (tilt or gravity) over a user-selectable
±2-/±4-/±8-/±16-g range, with 10-/11-/12-/13-bit max resolution, 0.5%
nonlinearity, and 0.02% temperature stability. Measurement bandwidths from 0.05
Hz to 1600 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
December 2008
The ADIS16364/ADIS16365 complete six-degrees-of-freedom Inertial Sensing Systems include a 3-axis gyroscope with ±75°/s, ±150°/s, and ±300°/s range settings; a 3-axis accelerometer with ±5-/±17-g range; and a temperature sensor. They provide 14-bit digital data proportional to the angular rate about—and the acceleration along—the X-, Y-, and Z-axes—and 12-bit digital data proportional to the on-chip temperature, power-supply voltage, and voltage on an auxiliary analog input. An auxiliary DAC provides an analog output with 12-bit resolution and a 2.5-V full-scale range. The devices are fully calibrated for sensitivity, bias, axial alignment, and linear acceleration; and dynamically compensated from –20°C to +70°C. Functionally complete, their functions include programmable self-test, power management, and alarms. All data and commands are communicated via an SPI-compatible serial interface.
The ADIS16405 complete Inertial Sensing System includes a 3-axis gyroscope with ±75°/s, ±150°/s, and ±300°/s range settings; a 3-axis accelerometer with ±5-g range; a 3-axis magnetometer with ±2-gauss range; and a temperature sensor. It provides 14-bit digital data proportional to the angular rate, acceleration, and magnetic field on the X-, Y-, and Z-axes—and 12-bit digital data proportional to the on-chip temperature, power-supply voltage, and voltage on an auxiliary analog input. An auxiliary DAC provides an analog output with 12-bit resolution and a 2.5-V full-scale range. The devices are fully calibrated for sensitivity, bias, axial alignment, and linear acceleration; and dynamically compensated over the entire specified temperature range. Functionally complete, their functions include programmable self-test, power management, and alarms. All data and commands are communicated via an SPI-compatible serial interface.
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November 2009
The
AD8505 micropower Operational Amplifier
features rail-to-rail input- and output range and zero crossover distortion,
ensuring true single-supply operation. It specifies 500-μV offset, 1-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, security systems, 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 AD8505 consumes 22 μA maximum.
The
AD8624 quad low-power Operational
Amplifier specifies 125 μV max offset voltage, 1.2-μV/°C max drift, 200-pA
max bias current, 120-dB common-mode rejection, 135-dB open-loop gain, 580-kHz
bandwidth, 0.4-V/μs slew rate, and 12-nV/rt-Hz noise. The output, which can
swing to within 10 mV of either rail, can drive a 30-mA load.
The
ADA4691-4 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 dual ±1.35-V to ±2.5-V supplies. Amplifiers can be
powered down in pairs, reducing power consumption to 10 nA in
shutdown mode. 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, 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.
September 2009
The
AD8279 dual 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
The ADA4051-1 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, 115-dB min open loop gain, 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 output can swing to within 10 mV of the rails—making the amplifier well suited to portable, battery-powered instruments.
August 2009
The ADA4062-4 quad, low-power, JFET-input Operational Amplifier is available in two grades: A-/B-grades specify 2.5-/1.5-mV max offset, 2-μV/°C offset drift, 100-pA max bias current, 90-dB common-mode rejection, 86-dB large-signal voltage gain, 86-dB power-supply rejection, 1.5-MHz bandwidth, and 4-V/μs slew rate, making the amplifier ideal for industrial process control, instrumentation, active filters, and other low-power data-acquisition applications.
The ADA4091-4 quad, low-power Operational Amplifier specifies 40 μV offset, 2.5-μV/°C offset drift, 100-dB common-mode rejection, 113-dB large-signal voltage gain, 126-dB power-supply rejection, 1.2-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—for 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—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.
The ADA4505-1 micropower Operational Amplifier features rail-to-rail input- and output range and zero crossover distortion, ensuring true single-supply operation. Its low power consumption, 105-dB common-mode rejection, 110-dB power-supply rejection, 120-dB open-loop gain, and 0.5-pA bias currents make it ideal for remote sensors, handheld instrumentation, and other battery-powered applications.
The ADA4691-2 dual Operational Amplifier with shutdown features 500-μV offset, 0.6-μV/°C drift, 500-fA bias current, 3.6-MHz bandwidth, 1.4-V/μs slew rate, 13-nV/√Hz noise, 0.001% distortion, and 200-μA maximum power consumption. 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. Each amplifier has an independent shutdown pin, reducing quiescent current drain to 10 nA.
July 2009
The ADA4051-2 dual, high-precision, micro-power CMOS Operational Amplifier features 10-µV max offset, 50-nV/°C max offset drift, 200-pA max bias current, 106-dB min common-mode rejection, and 106-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 30 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, it consumes 15 µA max per amplifier.
June 2009
The AD8235 Instrumentation Amplifier consumes only 40 μA when active and 6 nA in shutdown mode, making it the industry’s lowest power device. With rail-to-rail outputs and 1.8-V operation, it is ideal for battery-powered applications. Featuring an extended common-mode voltage range, 110-dB common-mode rejection, 1-pA input bias current, and 0.5-pA input offset current, it is well-suited for medical instrumentation, low-side current sensing, and many other portable signal-conditioning applications.
May 2009
The AD8276 low-power, unity-gain Difference Amplifier features 200 μV max offset, 0.7-μV/°C max offset drift, 0.02% max gain error, 5-ppm/°C max gain drift, 86-dB min common-mode rejection, 550-kHz bandwidth, and 1.1-V/μs slew rate. The device can operate with supply voltages up to 36 V; the input voltage range extends beyond both supply rails. Single-ended gains of +1/2, +1, +2, and –1 can be implemented with no external components.
The single ADA4950-1 and dual ADA4950-2 low-power Differential ADC Drivers are designed to interface directly with high-performance ADCs having up to 16-bit resolution. They 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. Differential gains of 1, 2, and 3 can be established with no external components. The common-mode output voltage can be set to match the input of the ADC.
April 2009
The
ADA4692-2 dual Operational Amplifier
features 500-μV offset, 0.6-μV/°C drift, 500-fA bias current, 3.6-MHz bandwidth,
March 2009
The
AD8264 four-channel
Variable-Gain Amplifier provides a
24-dB gain range with a 20-dB/V (linear-in-dB) scale factor and
The ADL5561/ADL5562 ultralow-distortion Differential Amplifiers feature 2.0-/2.6-GHz bandwidth, 2.1-nV/rt-Hz noise, 8000-V/μs slew rate, 2-ns settling time, 91-/94-dB spurious-free dynamic range (SFDR) at 10 MHz, and 80-/86-dB SFDR at 250 MHz. Pin strapping sets differential gains of 6 dB, 12 dB, and 15.5 dB, or single-ended gains of 5.6 dB, 11.4 dB, and 14.1 dB. With an external series resistor, any gain from 0 dB to 15.5 dB can be set.
February 2009
The AD8236 Instrumentation Amplifier consumes only 40 μA, making it the industry’s lowest power device. With rail-to-rail outputs and 1.8-V operation, it is ideal for battery-powered applications. Featuring an extended common-mode voltage range, 106-dB common-mode rejection, 5-pA input offset current, and 10-pA input bias current, it is well-suited for medical instrumentation, low-side current sensing, and many other signal-conditioning applications.
The ADA4665-2 dual CMOS Operational Amplifier features rail-to-rail inputs and outputs. Consuming less than 350 μA per amplifier while operating at supply voltages up to 16 V, it is ideal for a variety of process control, instrumentation, and signal-conditioning applications. Its specifications include: 1-pA input bias current, 3-μV/°C offset drift, 1-MHz bandwidth, and 1-V/μs slew rate.
December 2008
The AD8271 precision, low-distortion, programmable-gain Difference Amplifier includes internal gain-setting resistors. With no external components, it can be configured for 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. It features 0.02% max gain error, 2-ppm/°C max gain drift, 600 μV max offset, 80-dB min common-mode rejection, –110-dB harmonic distortion, 15-MHz bandwidth, and 30-V/μs slew rate, making it ideal for building instrumentation amplifiers, level translators, and automatic test equipment.
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 1400-MHz bandwidth, 6000-V/μs slew rate, 2.6-ns settling time, 117-dBc SFDR at 10 MHz, and 1.3-nV/rt-Hz noise. The drivers are stable for fractional differential gains, unity gain, and gains greater than 1; gain is set by two pairs of external resistors. The common-mode output voltage can be set to match the input of the ADC.
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November 2009
The
AD9255/AD9265
Pipelined A/D Converters provide 14-/16-bit resolution with no missing codes
at sampling rates to 125 Msps, making them ideal for ultrasound equipment,
broadband communications, and multimode digital receivers. 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 a CMOS- or
LVDS-compatible parallel port. Functionally complete, the devices include
optional on-chip dither, programmable voltage reference, programmable clock
divider, clock duty-cycle stabilizer, SPI-compatible port, and built-in self
test. Operating on a single 1.8-V supply, they specify 78.3-/79-dBFS
signal-to-noise ratio (SNR), 93-dBc spurious-free dynamic range (SFDR), and
±0.25/±0.5-LSB differential nonlinearity (DNL).
The
AD9266
Pipelined A/D Converter provides 16-bit resolution with no missing codes at
sampling rates to 80 Msps, making it ideal for multimode digital receivers,
spectrum analyzers, and battery-powered instruments. The fully differential
analog inputs accept signals with a 1-V p-p or 2-V p-p full-scale range, at
frequencies up to 700 MHz. Output data is available from a double-data-rate
(DDR) CMOS-compatible parallel port. Functionally complete, the device includes
a programmable clock divider, clock duty-cycle stabilizer, voltage reference,
SPI-compatible port, and programmable test-pattern generation. Operating on a
single 1.8-V supply, it specifies
The
AD9269 dual
Pipelined A/D Converter provides 16-bit resolution with no missing codes at
sampling rates to 80 Msps, making it ideal for ultrasound equipment, broadband
communications, and battery-powered instruments. The fully differential analog
inputs accept signals with a 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 device includes a programmable clock divider, clock duty-cycle
stabilizer, voltage reference, SPI-compatible port, and programmable test
pattern generation. Operating on a single 1.8-V supply, it specifies 77-dBFS
signal-to-noise ratio (SNR), 90-dBc spurious-free dynamic range (SFDR), and
±0.2-LSB differential nonlinearity (DNL).
The
AD9609/AD9629/AD9649
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 2-V p-p full-scale range, at frequencies up to 700 MHz. Output data is
available from a CMOS-compatible parallel port. Functionally complete, the
devices include a programmable clock divider, clock duty-cycle stabilizer,
voltage reference, SPI-compatible port, and programmable test pattern
generation. Operating on a single 1.8-V supply, they provide
61.5-/71.3-/74.3-dBFS signal-to-noise ratio (SNR), 75-/95-/93-dBc spurious-free
dynamic range (SFDR), and ±0.1-/±0.16-/±0.35-LSB differential nonlinearity
(DNL).
July 2009
The AD7626 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 10 Msps, making it the fastest, most accurate 16-bit ADC available. With no pipeline delay, it is ideal for telecommunications receivers, digital imaging, and high-speed data acquisition. Featuring 93-dB signal-to-noise ratio (SNR) and 106-dB spurious-free dynamic range (SFDR), it offers a ±4.096-V differential input range when used with a 4.096-V internal-, 4.096-V external-, or 1.2-V external reference. Data is available on a self- or echoed-clock LVDS serial interface.
June 2009
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 650 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. Operating on a single 1.8-V supply, they provide 59-/70-/74-dBFs signal-to-noise ratio (SNR), 75-/85-/95-dBc spurious-free dynamic range (SFDR), and ±0.5-LSB differential nonlinearity (DNL).
May 2009
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
March 2009
The
AD7606/AD7607 8-channel, simultaneous-sampling,
Successive-Approximation ADCs achieve
16-/14-bit resolution at a
The ADAS1128 128-channel, simultaneous-sampling Current-to-Digital Converter achieves 24-bit resolution at a 20-ksps sampling rate. It comprises 128 low-noise current integrators and sample/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.
The ADE7854 and ADE7878 high-performance polyphase Energy-Metering ICs are optimized for energy-meter designs employing current transformers or di/dt current sensors in 3-phase, 3-wire (delta) or 4-wire (wye) applications. They measure rms current, rms voltage, and total (fundamental and harmonic) active and apparent energy on each phase and on the overall system, with less than 0.1% error a 1000-to-1 dynamic range. A dedicated input measures neutral current. The ADE7878 also measures total reactive energy, and fundamental active and apparent energy.
January 2009
The AD7780 low-power analog front-end for weigh scales, strain gauges, and pressure sensors includes a programmable-gain amplifier, 24-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 provide simultaneous 50-/60-Hz rejection. The ADC provides 20-bit p-p resolution, 22.5 effective bits (ENOB), and 1.8-μV rms noise with a gain of 1 and a 16.7-Hz update rate; and 17.7-bit p-p resolution, 20 ENOB, and 65-nV rms noise with a gain of 128 and a 10-Hz update rate.
The
AD7985
low-power PulSAR®
Successive-Approximation ADC achieves 16-bit resolution with no missing
codes at a
The
AD7986
low-power PulSAR®
Successive-Approximation ADC achieves 18-bit resolution with no missing
codes at a
December 2008
The
single-channel
AD9261 and dual
AD9262 continuous-time Sigma-Delta
ADCs achieve 16-bit
resolution and 87-dB dynamic range over a selectable 2.5-/5-/10-MHz input
bandwidth. Their resistive input eases the requirements of the driver amplifier;
their
The AD9267 dual continuous-time Sigma-Delta Modulator achieves 87-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 460 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.
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November 2009
The
ADA4424-6 Video Reconstruction Filter comprises five independent fifth-order
Butterworth filters—two for standard-definition (SD) Y/C or CVBS composite video
signals, and three for high-definition (HD) or extended-definition (ED) YPrPb or
RGB component-video signals. The luma channels detect and cancel dc offsets up
to 1.1 V. The output drivers, which provide 6.2-dB gain, can drive two 75-ohm
doubly terminated cables. An on-chip charge pump allows the outputs to swing
below ground, eliminating the need for large coupling capacitors.
The
ADV7623 high-performance, 4-input, 1-output,
HDMI v1.4 Transceiver integrates an
HDMI receiver, HDMI transmitter, and digital audio I/Os onto a single chip. It
supports HDCP repeater functions, consumer electronics control (CEC), capability
discovery and control (CDC), 3D TV formats, and all HDTV formats up to 1080p
36-bit deep color. Its Xpressview™ technology allows fast switching between HDMI
input ports; its integrated on-screen display (OSD) allows generation and
control of high-quality character- and icon-based system-status- and control
displays; and its flexible audio input/output ports allow audio data to be
extracted from and inserted into the HDMI stream. It supports all HDMI audio
formats, including super audio CD (SACD) via DSD, compressed SACD via DST, and
HBR. Its audio return channel (ARC) simplifies cabling by combining upstream
audio signals into a conventional HDMI cable.
March 2009
The ADMTV201/ADMTV202 low-power TV Tuner ICs provide 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. The highly integrated devices include two/one UHF low-noise amplifiers (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.
The ADMTV300 low-power TV Tuner IC provides low-IF, single-conversion tuning for terrestrial Digital Multimedia Broadcasting (DMB), dual-band Digital Audio Broadcasting (DAB), and FM for digital mobile TV and radio in cell phones, personal media players, and automobile infotainment systems. The highly integrated device includes three UHF low-noise amplifiers (LNA), an RF programmable-gain amplifier (PGA), a down-conversion mixer, an adjustable bandwidth image-rejection band-pass filter, an IF PGA, a VCO, and a fractional-N PLL.
The ADMTV315 TV Receiver IC for T-DMB, DAB, and FM supports Band III and FM reception in cell phones, personal media players, and automobile infotainment systems. The highly integrated system comprises two high-performance RF tuners and two Orthogonal Frequency Division Multiplex (OFDM) demodulators. The zero-IF RF front-ends include an LNA, an RF PGA, a down-conversion mixer, a fractional-N PLL, a VCO, and a baseband low-pass filter. The basebands include a 10-bit ADC, an OFDM demodulator, and FEC/audio/data decoders. Simultaneous reception of two channels facilitates picture-in-picture (PiP) displays.
The ADMTV316 TV Receiver IC for T-DMB, DAB, and FM supports Band III, L Band, and FM reception in cell phones, personal media players, and automobile infotainment systems. The highly integrated system comprises a high-performance RF tuner and an Orthogonal Frequency Division Multiplex (OFDM) demodulator. The zero-IF RF front-end includes an LNA, an RF PGA, a down-conversion mixer, a fractional-N PLL, a VCO, and a baseband low-pass filter. The baseband includes a 10-bit ADC, an OFDM demodulator, and FEC/audio/data decoders.
The ADMTV340 TV Tuner IC supports China Mobile Multimedia Broadcasting (CMMB) standards for digital mobile TV in cell phones, personal media players, and notebook computers. Operating from 2635 MHz to 2660 MHz, it includes a low-noise amplifier, a zero-IF down-conversion mixer, a fractional-N PLL, a VCO, automatic-tuning channel-select filters, and a baseband variable-gain amplifier.
The ADMTV800 TV Tuner IC supports China Mobile Multimedia Broadcasting (CMMB) standards for digital mobile TV in portable TV receivers. Operating in UHF (470 MHz to 862 MHz) and S-Band (2635 MHz to 2660 MHz), it includes two low-noise amplifiers, an RF PGA, a zero-IF down-conversion mixer, a fractional-N PLL, a VCO, a low-pass filter, and a baseband programmable-gain amplifier.
The ADMTV803 TV Tuner IC supports China Mobile Multimedia Broadcasting (CMMB) standards for digital mobile TV in portable TV receivers. Operating in UHF (470 MHz to 862 MHz) and VHF (54 MHz to 245 MHz) bands, it includes two low-noise amplifiers, an RF PGA, a zero-IF down-conversion mixer, a fractional-N PLL, a VCO, a low-pass filter, and a baseband programmable-gain amplifier.
February 2009
The
ADV7604 deep color Video
Decoder/Graphics Digitizer integrates an analog interface and an HDMI v1.3
receiver. The
December 2008
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.
The ADAU1361 low-power stereo Audio Codec supports 48-kHz record and playback while consuming only 10 mW from a 1.8-V supply. 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 ADAU1761 low-power SigmaDSP® stereo Audio Codec supports 48-kHz record and playback while consuming only 10 mW from a 1.8-V supply. 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-/50-bit, 50-MIPS digital-audio processor is fully programmable using the SigmaStudio™ graphical tool.
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October 2009
The
AD9122 dual 16-bit, 1200-Msps TxDAC+®
Digital-to-Analog Converter enables
multicarrier generation at up to the Nyquist frequency. Optimized for
direct-conversion transmit
applications, it includes complex digital modulation and offset/gain
compensation. The flexible LVDS interface allows word-, byte-, or nibble load;
and the DAC outputs interface seamlessly with quadrature modulators in the
ADL537x F-MOD family. Full-scale currents are programmable over a range of 8.7
mA to 31.7 mA.
May 2009
The AD5270/AD5271 and AD5272/AD5274 Digitally Variable Resistors provide 1024-/256-position resolution and better than 1% end-to-end resistance tolerance. 20-kohm, 50-kohm, and 100-kohm resistance options are available, with 35-ppm/°C temperature coefficient. These electronic devices perform the same adjustment function as mechanical rheostats, but are smaller and more reliable. Their wiper position can be adjusted via an I2C- (AD5270/71) or SPI- (AD5272/74) 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 50 times ("removing the epoxy").
April 2009
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 10 V, ±5 V, and ±10 V ranges; 10% over-range capability is available on all ranges. The robust devices are open- and short-circuit protected, and can drive 1-μF loads.
The
AD9789
Signal-Processing DAC combines a flexible QAM encoder, interpolator, and
upconverter with a high-performance
March 2009
The single AD5501 and quad AD5504 high-voltage, 12-bit, serial-input, Voltage-Output DACs provide a pin-selectable output range of 0 V to 30 V or 0 V to 60 V. Functionally complete, they include a precision voltage reference 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. An on-chip temperature sensor disconnects the analog outputs and sets an alarm flag if the die temperature exceeds 130°C.
The AD5502 16-bit, serial-input, Voltage-Output DAC offers a programmable output that meets the requirements of industrial process control applications. Functionally complete, it includes a precision voltage reference, a reference buffer, offset/gain calibration registers, and a high-voltage output amplifier. The output voltage range, programmed via the SPI port, can be 0 V to 5 V, 0 V to 10 V, 0 V to 40 V, ±5 V or ±10 V. The registers are reset to a known state upon power up, and can be asynchronously cleared upon demand.
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October 2009
The ADSP-2146x
fourth-generation SHARC®
Processors offer a high-performance core, plus application- and
audio-specific peripherals, making them ideal for professional and automotive
audio applications. Their single-instruction, multiple-data (SIMD) core supports
32-bit fixed-point and 32-/40-bit floating-point arithmetic formats—performing
at up to 2.7 GFLOPS and 900 MMACS with a 450-MHz clock. The DMA controllers
support 67 channels, each of which can transfer 32-bit serial data at peripheral
clock speed without slowing processor execution. The digital audio interface
(DAI) includes eight serial ports, four precision clock generators, an input
data port, an S/PDIF transceiver, and a flexible signal-routing unit (SRU). The
digital peripheral interface (DPI) includes two SPI ports, two timers, a UART, a
DTCP cipher, and a 2-wire interface. Two 8-bit, bidirectionally programmable
link ports can connect to the link ports of other DSPs or peripherals. 5 Mbits
of RAM and 4 Mbits of ROM are included on-chip. The following table compares the
various models.
|
Model/Parameter |
Frequency (MHz) |
ROM (bits) |
Digital Content Transmission Protocol (DTCP) |
Media Local Bus (MLB) |
Automotive Applications |
|
|
400 |
N/A |
Yes |
Yes |
Yes |
–40 to +85 |
|
|
400 |
4M |
Yes |
Yes |
Yes |
–40 to +85 |
|
|
450 |
4M |
No |
No |
No |
0 to +70 |
|
|
450 |
N/A |
No |
No |
No |
0 to +70 |
|
|
400 |
N/A |
No |
Yes |
Yes |
–40 to +85 |
February 2009
The
ADSP-BF51x/ADSP-BF51xF
Blackfin Processors combine the
multimedia signal-processing power of a single-instruction, multiple-data (SIMD)
DSP with the control capabilities of a RISC microcontroller. Comprising two
16-bit MACs, two 40-bit ALUs, four
December 2008
The ADSP-21462W/ADSP-21465W/ADSP-21467 fourth-generation SHARC® Processors offer a high-performance core, plus application- and audio-specific peripherals, making them ideal for professional and automotive audio applications. Their single-instruction, multiple-data (SIMD) core supports 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats—performing 2.7 GFLOPS and 900 MMACS with a 450-MHz clock. The DMA controllers support 67 channels, each of which can transfer 32 bit serial data at peripheral clock speed without slowing processor execution. The digital audio interface (DAI) includes eight serial ports, four precision clock generators, an input data port, an S/PDIF transceiver, and a flexible signal-routing unit (SRU). The digital peripheral interface (DPI) includes two SPI ports, two timers, a UART, a DTCP cipher, and a 2-wire interface. Two 8-bit, bidirectionally programmable link ports can connect to the link ports of other DSPs or peripherals. 5 Mbits of RAM and 4 Mbits of ROM are included on-chip.
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August 2009
The ADuM7440/ADuM7441/ADuM7442 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 1-kV isolation, they meet UL and CSA safety- and regulatory requirements. Featuring 3-ns pulse-width distortion, 6-ns channel-to-channel mismatch, and 15-kV/μs common-mode transient immunity, A-, B-, and C-grades operate at data rates from dc to 1 Mbps, 10 Mbps, and 25 Mbps, respectively. The power supplies on each side can range from 3 V to 5.5 V, allowing level-translation across the isolation barrier. Refresh circuitry ensures correct output data levels in the absence of input transitions—and during power-up and power-down conditions. The ADuM7440 has four channels that communicate in the same direction; the ADuM7441 has one channel that communicates in one direction and three that communicate in the reverse direction; and the ADuM7442 has two channels that communicate in one direction and two that communicate in the reverse direction.
June 2009
The ADuM4160 iCoupler® Digital Isolator combines high-speed CMOS and micro-transformers to provide bidirectional isolation for full- (12 Mbps) and low- (1.5 Mbps) speed 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, and enhanced system-level ESD performance. The propagation delay is comparable to that of a standard hub and cable.
April 2009
The ADM2582E/ADM2587E Isolated RS-485 Transceivers employ iCoupler® and isoPower™ technologies to integrate a 3-channel isolator, a 3-state differential line driver, a differential-input line receiver, and an isolated dc-to-dc converter. Operating at data rates up to 16 Mbps/500 kbps, they enable full- or half-duplex data communication over multipoint-bus transmission lines. Designed for balanced transmission, they comply with ANSI/TIA/EIA RS-485 and ISO 8482 standards. The line inputs and outputs provide ±15-kV ESD protection, 25-kV/μs transient immunity, and 2500-V rms isolation, making the devices suitable for operation in electrically harsh environments.
December 2008
The
ADP2121 step-down DC-to-DC
Converter is available in 1.80-V, 1.82-V, 1.85-V, and 1.875-V fixed-output
versions. It uses
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September 2009
The ADP1872 synchronous, current-mode Step-Down Controller drives an external NMOS power stage to regulate hefty current loads with output voltages as low as 0.6 V and 1% accuracy. Its control scheme provides excellent transient response, stability, and low-duty-cycle performance. The robust design includes a fixed soft-start period, and short-circuit-, thermal-overload-, and over-current protection. Three versions are available, with switching frequencies of 300 kHz, 600 kHz, and 1 MHz.
August 2009
The ADM6326, ADM6328, ADM6346, and ADM6348 ultralow-power Microprocessor Reset circuits monitor the supply voltage in microprocessor-based systems—and provide an active-low reset signal during power-up, power-down, and brownout conditions. With 24 reset threshold voltage options, from 2.2 V to 4.63 V, they are ideal for monitoring supplies from 2.5 V to 5 V. An internal timer maintains the reset condition for at least 100 ms, allowing the power supply a chance to stabilize. The ADM6326 and ADM6346 have push-pull outputs; the ADM6328 and ADM6348 have open-drain outputs. The ADM6326 and ADM6328 guarantee a 1-μA maximum supply current.
The ADM12914 four-channel Voltage Supervisor monitors four power supplies and provides an active-low, open-drain alert signal when any of them experiences an under- or over-voltage condition. A high-precision version of the ADM2914, it features an industry-leading threshold accuracy of ±0.8% max over the –40°C to +125°C temperature range. Two of the four inputs monitor positive supplies; the other two inputs can be independently configured to monitor either positive- or negative supplies. The fault outputs are immune to power supply glitches; and an adjustable delay allows the supplies to stabilize after all faults have cleared. An input-supply shunt regulator enables the device to 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.
The
ADP2114 dual high-efficiency step-down
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November 2009
The
ADR291WFRZ micropower 2.5-V Voltage
Reference features 0.33% max
error over temperature and 20-ppm/°C max drift. Consuming 15 μA max quiescent
current, it can drive 5-mA loads. Fully specified over the –40°C to +125°C
automotive temperature range, it is qualified per AEC-Q100.
September 2009
The ADR34xx family of micro-power, high-accuracy Voltage References feature 0.1% max initial error and 1-ppm/°C max drift. Consuming 70 μA max quiescent current, they can source 10 mA and sink 3 mA. Available in seven optional output voltages from 1.200 V to 5.000 V, they specify 200-mV max dropout voltage (1.1 V for the 1.200-V version). They are housed in tiny SOT-23 packages.
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RF, IF, Broadband, and Wireless
October 2009
The
ADRF660x high-dynamic-range Active Mixers
convert a single-ended 50-ohm RF input into a 200-ohm differential IF output
with up to 500-MHz bandwidth. The on-chip fractional-N PLL and VCO generate the
local-oscillator (LO) input to the mixer. A reference input in the range of 12
MHz to 160 MHz can be multiplied by 1 or 2, or divided by 2 or 4, before it is
applied to the PLL phase detector. The
ADRF6601,
ADRF6602,
ADRF6603, and
ADRF6604 accept respective RF input ranges of 300 MHz to 2500 MHz, 1000 MHz
to 3100 MHz, 1100 MHz to 3200 MHz, and 1200 MHz to 3600 MHz, and generate
respective LOs from 750 MHz to 1160 MHz, 1550 MHz to 2150 MHz, 2100 MHz to 2600
MHz, and 2500 MHz to 2900 MHz.
The
ADRF670x Quadrature Modulators
convert differential quadrature (I/Q) IF analog inputs with up to 200-MHz
bandwidth into a single-ended 50-ohm RF output. The on-chip fractional-N PLL and
VCO generate the local-oscillator (LO) input to the mixer. A reference input in
the range of 12 MHz to 160 MHz can be multiplied by 1 or 2, or divided by 2 or
4, before it is applied to the PLL phase detector. The
ADRF6701,
ADRF6702,
ADRF6703, and
ADRF6704 provide respective RF output ranges of 400 MHz to 1300 MHz, 1200
MHz to 2400 MHz, 1600 MHz to 2600 MHz, and 2200 MHz to 3000 MHz; and generate
respective LOs from 750 MHz to 1160 MHz, 1550 MHz to 2150 MHz, 2100 MHz to 2600
MHz, and 2500 MHz to 2900 MHz.
August 2009
The AD8432 dual Low-Noise Amplifier features 200-MHz bandwidth, selectable gain, and active impedance matching. Its amplifiers have single-ended inputs, differential outputs, optional integrated input clamps, and pin strapped gain choices of 4, 8, 12, or 16. Feedback allows the input impedance to be adjusted to match the signal source without compromising noise performance. Specifications include 0.85-nV/rt-Hz voltage noise, 2-pA/rt-Hz current noise, and 270 V/μs slew rate.
July 2009
The ADL5601 broadband Linear Amplifier provides a fixed 15-dB gain from 50 MHz to 4 GHz, making it useful for a wide variety of applications in cellular, CATV, military, and instrumentation electronics. The gain is stable over frequency, temperature, and supply variations. The 3.7-dB noise figure, 19.2-dBm compression point (P1dB), and 43.7-dBm third-order intercept (OIP3) ensure a wide dynamic range. The inputs and outputs are internally matched to 50 ohms, making it easy to use.
The ADL5604 broadband Linear Amplifier/Driver operates from 400 MHz to 2.7 GHz, a useful range for a wide variety of applications including ISM, WLL, PCS, GSM, CDMA, and W-CDMA. At 2140 MHz, it provides 14.2-dB gain—with 4.2-dB noise figure, 29.0-dBm compression point (P1dB), and 42.6-dBm third-order intercept (OIP3). Two input- and one output capacitor match the amplifier to the load.
The ADL5902 TruPwr™ rms-responding Power Detector provides a 60-dB dynamic range from 100 MHz to 9 GHz. Driven from a single-ended 50-ohm source, it does not require a balun or other external frequency tuning device, making it versatile and easy to use to control transmitter power or indicate signal strength. Accepting inputs with rms values from 1 mV to 1 V, it can handle the large crest factors required by WiMAX, CDMA, W-CDMA, TD-SCDMA, GSM, and LTE signals. When measuring power, the output, proportional to the log of the input (linear-in-dB), is scaled to 50-mV/dB; in controller mode, an applied voltage determines the power level.
The ADF4150 PLL synthesizer—when combined with an external voltage-controlled oscillator (VCO) and loop filter—implements a complete frequency synthesizer. Using integer- or fractional-N modes, it accepts an external reference from 10 MHz to 250 MHz and generates a fundamental output between 500 MHz and 6 GHz. Auxiliary divide-by-1/2/4/8/16 circuits allow generation of RF outputs as low as 31.25 MHz.
The ADF7023 low-power 2FSK/GFSK/OOK Transceiver operates in the 860-MHz to 928-MHz and 430-MHz to 464-MHz bands, allowing short-range communications in the license-free ISM bands at 433 MHz, 868 MHz, and 915 MHz. It supports data rates from 1 kbps to 300 kbps.
June 2009
The ADL5602 InGaP HBT broadband RF/IF Gain Block provides 20-dB gain over the 50-MHz to 4-GHz frequency band. Ideal for cellular, CATV, military, and instrumentation applications, it features matched 50-ohm inputs and outputs, 3.4-dB noise figure (NF), 19.0-dB 1-dB compression point (P1dB), and 41.2-dBm third-order intercept (OIP3).
May 2009
The
ADF4602-1 Transceiver IC, with a
few external components, can implement a complete multiband transceiver for
high-performance 3G femtocells that provide cellular
fixed mobile converged (FMC) services.
The direct-conversion receiver includes three low-noise amplifiers (LNA) to
support tri-band applications, quadrature demodulators, variable-gain
amplifiers, selectable-bandwidth baseband filters, and a fractional-N PLL. It
can receive both W-CDMA and GSM-EDGE radio signals in a UMTS base station. The
direct-conversion transmitter includes baseband filters, variable gain
amplifiers, a quadrature modulator, and a fractional-N PLL. A
The ADRF6750 Quadrature Modulator integrates an I/Q modulator, fractional-N PLL synthesizer, voltage-controlled oscillator, and digitally controlled RF attenuator within a compact 8-mm × 8-mm package—saving space, reducing cost, and lowering complexity in VSAT (very small aperture terminals) and other broadband satellite-communications applications. Operating from 950 MHz to 1575 MHz, the device features 250-MHz modulation bandwidth, 10-Hz resolution, 47-dB gain range with 1-dB steps, 8.5-dBm output compression (P1dB), 21-dBm output third-order intercept (IP3) and –148-dBc/Hz noise floor. A user-selectable SPI/I2C serial interface allows maximum flexibility.
March 2009
The single ADL5355 and dual ADL5356 2-GHz Balanced Mixers mix RF inputs in the 1500-MHz to 2500-MHz range with a local oscillator (LO) to produce IF outputs in the 40-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.
The single ADL5357 and dual ADL5358 900-MHz Balanced Mixers mix RF inputs in the 500-MHz to 1500-MHz range with a local oscillator (LO) to produce IF outputs in the 40-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. 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.
The ADL5365 2-GHz Balanced Mixer mixes an RF input in the 1500-MHz to 2500-MHz range with a local oscillator (LO) to produce an IF output in the dc 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.
The ADL5367 900-MHz Balanced Mixer mixes an RF input in the 500-MHz to 1500-MHz range with a local oscillator (LO) to produce an IF output in the dc 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. With its low leakage, low intermodulation distortion, and high input linearity, achieved through balanced design, it is ideal for cellular base stations.
The ADL5801 Active Mixer mixes an RF input in the 10-MHz to 6000-MHz range with a local oscillator (LO) to produce an IF output in the dc to 600-MHz range. With its low leakage, low intermodulation distortion, and high input linearity, achieved through its doubly balanced active mixer core, LO buffer, and IF amplifier, it is ideal for cellular base stations.
February 2009
The AD9551 Clock Generator accepts one or two reference input signals and generates one or two output signals that are harmonically related by a programmable 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 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.
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