The ADuM7702 is a high performance, second-order, ?-? modulator that converts an analog input signal to a high speed, single-bit data stream, with on-chip digital isolation based on Analog Devices, Inc., iCoupler? technology. The device operates from a 4.5 V to 5.5 V power supply range (VDD1) and accepts a pseudo differential input signal of ?50 mV (?64 mV full-scale). The pseudo differential input is ideally suited to shunt voltage monitoring in high voltage applications where galvanic isolation is required. The analog input is continuously sampled by a high performance analog modulator and converted to a ones density digital output stream with a data rate of up to 21 MHz. The original information can be reconstructed with an appropriate sinc3 digital filter to achieve an 82 dB signal-to-noise ratio (SNR) at 78.1 kSPS with a 256 decimation rate and a 20 MHz master clock. The serial input and output operates from a 5 V or a 3 V supply (VDD2).The serial interface is digitally isolated. High speed complementary metal-oxide semiconductor (CMOS) technology, combined with monolithic transformer technology, results in on-chip isolation providing outstanding performance characteristics, superior to alternatives such as optocoupler devices. The ADuM7702 is available in both a 16-lead SOIC_W and an 8-lead SOIC_IC and has an operating temperature range of ?40?C to +125?C.Applications Shunt current monitoring AC motor controls Power and solar inverters Wind turbine inverters Analog-to-digital and optoisolator replacement

The AD3552R is a low drift, ultra-fast, 16-bit accuracy, current output digital-to-analog converter (DAC) that can be configured in multiple voltage span ranges. The AD3552R operates with a fixed 2.5 V reference.The device incorporates three drift compensating feedback resistors for the required external transimpedance amplifier (TIA) that scales the output voltage. Offset and gain scaling registers allow for generation of multiple output span ranges, such as 0 V to 2.5 V, 0 V to 5 V, 0 V to 10 V, ?5 V to +5 V, and ?10 V to +10 V, and custom intermediate ranges with full 16-bit resolution.The DAC can operate in fast mode for maximum speed or precision mode for maximum accuracy.The SPI interface can be configured in single SPI (classic SPI) mode, dual SPI mode, synchronous dual SPI mode, and quad SPI mode with single date rate (SDR) or double data rate (DDR), with logical levels from 1.2 V to 1.8 V.To improve device robustness, cyclic redundancy check (CRC) can be enabled. Multiple error checkers have also been integrated to detect VREF failures or memory map corruption.The AD3552R is specified over the extended industrial temperature range (?40?C to +105?C).APPLICATIONSInstrumentationHardware in the loopProcess control equipmentMedical devicesAutomatic test equipmentData acquisition systemProgrammable voltage sourcesOptical communications

The AD5241?/ AD52421 provide a single-/dual-channel, 256-position, digitally controlled variable resistor (VR) device. These devices perform the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. Each VR offers a completely programmable value of resistance between the A terminal and the wiper, or the B terminal and the wiper. For the AD5242, the fixed A-to-B terminal resistance of 10 k?, 100 k?, or 1 M? has a 1% channel-to-channel matching tolerance. The nominal temperature coefficient of both parts is 30 ppm/?C.Wiper position programming defaults to midscale at system power on. When powered, the VR wiper position is programmed by an I2C-compatible, 2-wire serial data interface. Both parts have two extra programmable logic outputs available that enable users to drive digital loads, logic gates, LED drivers, and analog switches in their system.The AD5241 / AD5242 are available in surface-mount, 14-lead SOIC and 16-lead SOIC packages and, for ultracompact solutions, 14-lead TSSOP and 16-lead TSSOP packages. All parts are guaranteed to operate over the extended temperature range of ?40?C to +105?C.APPLICATIONS Multimedia, video, and audio Communications Mechanical potentiometer replacement Instrumentation: gain, offset adjustment Programmable voltage-to-current conversion Line impedance matching

The AD5246 provides a compact 2 mm ? 2.1 mm packaged solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a variable resistor. Available in four different end-to-end resistance values (5 k?, 10 k?, 50 k?, 100 k?), these low temperature coefficient devices are ideal for high accuracy and stability variable resistance adjustments.The wiper settings are controllable through the I2C compatible digital interface, which can also be used to read back the present wiper register control word. The resistance between the wiper and either end point of the fixed resistor varies linearly with respect to the digital code transferred into the RDAC?latch.Operating from a 2.7 V to 5.5 V power supply and consuming 3 ?A allows for usage in portable battery-operated applications.APPLICATIONS Mechanical potentiometer replacement in new designs Transducer adjustment of pressure, temperature, position, chemical, and optical sensors RF amplifier biasing Automotive electronics adjustment Gain control and offset adjustment

The AD5522 is a high performance, highly integrated parametric measurement unit consisting of four independent channels. Each per-pin parametric measurement unit (PPMU) channel includes five 16-bit, voltage output DACs that set the programmable input levels for the force voltage inputs, clamp inputs, and comparator inputs (high and low). Five programmable force and measure current ranges are available, ranging from ?5 ?A to ?80 mA. Four of these ranges use on-chip sense resistors; one high current range up to ?80 mA is available per channel using off-chip sense resistors. Currents in excess of ?80 mA require an external amplifier. Low capacitance DUT connections (FOH and EXTFOH) ensure that the device is suited to relayless test systems.The PMU functions are controlled via a simple 3-wire serial interface compatible with SPI, QSPI?, MICROWIRE?, and DSP interface standards. Interface clocks of 50 MHz allow fast updating of modes. The low voltage differential signaling (LVDS) interface protocol at 83 MHz is also supported. Comparator outputs are provided per channel for device go-no-go testing and characterization. Control registers allow the user to easily change force or measure conditions, DAC levels, and selected current ranges. The SDO (serial data output) pin allows the user to read back information for diagnostic purposes. APPLICATIONS Automatic Test Equipment (ATE) Per pin Parametric Measurement Unit Continuity & Leakage Testing Device Power Supply Instrumentation SMU (Source Measure Unit) Precision Measurement

The AD7175-2 is a low noise, fast settling, multiplexed, 2-/4-channel (fully/pseudo differential) ?-? analog-to-digital converter(ADC) for low bandwidth inputs. It has a maximum channelscan rate of 50 kSPS (20 ?s) for fully settled data. The outputdata rates range from 5 SPS to 250 kSPS.The AD7175-2 integrates key analog and digital signal conditioningblocks to allow users to configure an individual setup foreach analog input channel in use. Each feature can be user selectedon a per channel basis. Integrated true rail-to-rail buffers on theanalog inputs and external reference inputs provide easy to drivehigh impedance inputs. The precision 2.5 V low drift (2 ppm/?C)band gap internal reference (with output reference buffer) addsembedded functionality to reduce external component count.The digital filter allows simultaneous 50 Hz/60 Hz rejection at27.27 SPS output data rate. The user can switch betweendifferent filter options according to the demands of eachchannel in the application. The ADC automatically switchesthrough each selected channel. Further digital processingfunctions include offset and gain calibration registers,configurable on a per channel basis.The device operates with a 5 V AVDD1, or ?2.5 V AVDD1/AVSS,and 2 V to 5 V AVDD2 and IOVDD supplies. The specifiedoperating temperature range is ?40?C to +105?C. The AD7175-2 isin a 24-lead TSSOP package.Applications Process control: PLC/DCS modules Temperature and pressure measurement Medical and scientific multichannel instrumentation Chromatography

The AD7682/AD7689 are 4-channel/8-channel, 16-bit, chargeredistribution successive approximation register (SAR) analog-to-digitalconverters (ADCs) that operate from a single powersupply, VDD.The AD7682/AD7689 contain all components for use in a multichannel, low power data acquisition system, including a true 16-bit SAR ADC with no missing codes; a 4-channel (AD7682) or 8-channel (AD7689) low crosstalk multiplexer that is useful for configuring the inputs as single-ended (with or without ground sense), differential, or bipolar; an internal low drift reference (selectable 2.5 V or 4.096 V) and buffer; a temperature sensor; a selectable one-pole filter; and a sequencer that is useful when channels are continuously scanned in order.The AD7682/AD7689 use a simple serial port interface (SPI) for?writing to the configuration register and receiving conversion?results. The SPI interface uses a separate supply, VIO, which is set?to the host logic level. Power dissipation scales with throughput.The AD7682/AD7689 are housed in a tiny 20-lead lead frame?chip scale package (LFCSP) and 20-lead wafer level chip scale?package (WLCSP) with operation specified from ?40?C to?+85?C. The AD7689 includes an extended temperature range?model with specifications guaranteed to a maximum?temperature (TMAX) of +125?C.Applications Multichannel system monitoring Battery-powered equipment Medical instruments: ECG/EKG Mobile communications: GPS Power line monitoring Data acquisition Seismic data acquisition systems Instrumentation Process control

The AD7762 is a high performance, 24-bit ?-? analog-to-digital converter (ADC). It combines wide input bandwidth and high speed with the benefits of ?-? conversion with a performance of 106 dB SNR at 625 kSPS, making it ideal for high speed data acquisition. Wide dynamic range combined with significantly reduced anti-aliasing requirements simplify the design process. An integrated buffer to drive the reference, a differential amplifier for signal buffering and level shifting, an overrange flag, internal gain and offset registers, and a low-pass digital FIR filter make the AD7762 a compact, highly integrated data acquisition device requiring minimal peripheral component selection. In addition, the device offers programmable decimation rates, and the digital FIR filter can be adjusted if the default characteristics are not appropriate to the application. The AD7762 is ideal for applications demanding high SNR without a complex front end signal processing design.The differential input is sampled at up to 40 MSPS by an analog modulator. The modulator output is processed by a series of low-pass filters, the final filter having default or user-programmable coefficients. The sample rate, filter corner frequencies, and output word rate are set by a combination of the external clock frequency and the configuration registers of the AD7762.The reference voltage supplied to the AD7762 determines the analog input range. With a 4 V reference, the analog input range is ?3.2 V differential biased around a common mode of 2 V. This common mode biasing can be achieved using the on-chip differential amplifier, further reducing the external signal conditioning requirements.The AD7762 is available in an exposed paddle, 64-lead TQFP and is specified over the industrial temperature range from ?40?C to +85?C.APPLICATIONS Data acquisition systems Vibration analysis Instrumentation

The ADAU1372 is a codec with four inputs and two outputs, which incorporates asynchronous sample rate converters. Optimized for low latency and low power, the ADAU1372 is ideal for headsets, handsets, and headphones. The ADAU1372 has built-in programmable gain amplifiers (PGAs); thus, with the addition of just a few passive components and a crystal, the ADAU1372 provides a solution for headset audio needs. Microphone preamplifiers, ADCs, DACs, headphone amplifiers and serial ports for connections to an external DSP.APPLICATIONS Handsets, headsets, and headphones Bluetooth handsets, headsets, and headphones Personal navigation devices Digital still and video cameras

The ADAU1452 /?ADAU1451?/?ADAU1450 are automotive qualified audio processors that far exceed the digital signal processing capabilities of earlier SigmaDSP? devices. The restructured hardware architecture is optimized for efficient audio processing. The audio processing algorithms are realized in sample-by-sample and block-by-block paradigms that can both be executed simultaneously in a signal processing flow created using the graphical programming tool, SigmaStudio?. The restructured digital signal processor (DSP) core architecture enables some types of audio processing algorithms to be executed using significantly fewer instructions than were required on previous SigmaDSP generations, leading to vastly improved code efficiency.The 1.2 V, 32-bit DSP core can run at frequencies of up to 294.912 MHz and execute up to 6144 instructions per sample at the standard sample rate of 48 kHz. However, in addition to industry-standard rates, a wide range of sample rates are available. The integer PLL and flexible clock generator hardware can generate up to 15 audio sample rates simultaneously. These clock generators, along with the on-board asynchronous sample rate converters (ASRCs) and a flexible hardware audio routing matrix, make the ADAU1452 / ADAU1451 / ADAU1450 ideal audio hubs that greatly simplify the design of complex multirate audio systems.The ADAU1452 / ADAU1451 / ADAU1450 interface with a wide range of analog-to-digital converters (ADCs), digital-to-analog converters (DACs), digital audio devices, amplifiers, and control circuitry, due to their highly configurable serial ports, S/PDIF interfaces (on the ADAU1452 and ADAU1451), and multipurpose input/output pins. The devices can also directly interface with pulse density modulation (PDM) output microelectromechanical (MEMS) microphones, due to integrated decimation filters specifically designed for that purpose.Independent slave and master I2C/serial peripheral interface (SPI) control ports allow the ADAU1452 / ADAU1451 / ADAU1450 not only to be programmed and configured by an external master device, but also to act as masters that can program and configure external slave devices directly. This flexibility, combined with self boot functionality, enables the design of standalone systems that do not require any external input to operate.The power efficient DSP core executes full programs, consumes only a few hundred milliwatts (mW) of power, and can run at a maximum program load while consuming less than a watt, even in worst case temperatures exceeding 100?C. This relatively low power consumption and small footprint make the ADAU1452 / ADAU1451 / ADAU1450 ideal replacements for large, general-purpose DSPs that consume more power at the same processing load.Differences between the ADAU1452, ADAU1451, and ADAU1450The five variants of this device are differentiated by memory, DSP core frequency, availability of S/PDIF interfaces, ASRC configuration, and temperature range.Because the ADAU1450 does not contain an S/PDIF receiver or transmitter, the SPDIFIN and SPDIFOUT pins are nonfunctional. Additionally, the settings of any registers related to the S/PDIF input or output in the ADAU1450 do not have any effect on the operation of the device.Because the ADAU1450 does not contain ASRCs, the settings of any registers related to the ASRCs in the ADAU1450 do not have any effect on the operation of the device.APPLICATIONS Automotive audio processing Head units Navigation systems Rear seat entertainment systems DSP amplifiers (sound system amplifiers) Commercial and professional audio processing Consumer audio processing