The AD5750 / AD5750-1 / AD5750-2 are single-channel, low cost, precision voltage/current output drivers with hardware- or software-programmable output ranges. The software ranges are configured via an SPI-/MICROWIRE™-compatible serial interface. The AD5750 / AD5750-1 / AD5750-2 target applications in PLC and industrial process control. The analog input to the AD5750 / AD5750-1 / AD5750-2 is provided from a low voltage, single-supply digital-to-analog converter (DAC) and is internally conditioned to provide the desired output current/voltage range. Analog input ranges available are 0 V to 2.5 V (AD5750-1 / AD5750-2) or 0 V to 4.096 V (AD5750).The output current range is programmable across five current ranges: 4 mA to 20 mA, 0 mA to 20 mA or 0 mA to 24 mA, ±20 mA, and ±24 mA. An overrange of 2% is available on the unipolar current ranges.Voltage output is provided from a separate pin that can be configured to provide 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V output ranges. An overrange of 20% is available on the voltage ranges.Analog outputs are short-circuit and open-circuit protected and can drive capacitive loads of 1 μF and inductive loads of 0.1 H.The device is specified to operate with a power supply range from ±12 V to ±24 V. Output loop compliance is 0 V to AVDD − 2.75 V.The flexible serial interface is SPI and MICROWIRE compatible and can be operated in 3-wire mode to minimize the digital isolation required in isolated applications. The interface also features an optional PEC error checking feature using CRC-8 error checking, useful in industrial environments where data communication corruption can occur.The device also includes a power-on reset function, ensuring that the device powers up in a known state (0 V or tristate), and an asynchronous CLEAR pin that sets the outputs to zero scale/midscale voltage output or the low end of the selected current range.An HW SELECT pin is used to configure the part for hardware or software mode on power-up.APPLICATIONS Process control Actuator control PLCs

The AD8208 is a single-supply difference amplifier ideal for amplifying and low-pass filtering small differential voltages in the presence of a large common-mode voltage. The input common-mode voltage range extends from −2 V to +45 V at a single +5 V supply. The AD8208 is qualified per AEC-Q100 specifications. The amplifier offers enhanced input overvoltage and ESD protection, and includes EMI filtering.Automotive applications demand robust, precision components for improved system control. The AD8208 provides excellent ac and dc performance, minimizing errors in the application. Typical offset and gain drift are less than 5 µV/°C and 10 ppm/°C, respectively. The device also delivers a minimum CMRR of 80 dB from dc to 10 kHz.The AD8208 features an externally accessible 100 kΩ resistor at the output of the preamplifier (A1), which can be used for low-pass filtering and for establishing gains other than 20.Applications High-side current sensing Motor controls Solenoid controls Power management Low-side current sensing Diagnostic protection

The AD8217 is a high voltage, high-resolution current shunt amplifier. It features a set gain of 20 V/V, with a maximum ±0.35% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. The AD8217 offers excellent common-mode rejection from 4.5 V to 80 V, and includes an internal LDO, which directly powers the device from the high voltage rail. Therefore, no addi-tional supply is necessary, provided that the input common-mode range is 4.5 V to 80 V. The AD8217 performs unidirectional current measurements across a shunt resistor in a variety of industrial and telecom applications including motor control, battery management, and base station power amplifier bias control.The AD8217 offers breakthrough performance throughout the −40°C to +125°C temperature range. It features a zero-drift core, which leads to a typical offset drift of ±100 nV/°C throughout the operating temperature and common-mode voltage range. Special attention is devoted to output linearity being maintained throughout the input differential voltage range of 0 mV to 250 mV, regardless of the common-mode voltage present, and the typical input offset voltage is ±100 μV.The AD8217 is offered in a 8-lead MSOP package and is specified from −40°C to +125°C.Applications High side current sensing 48 V telecom Power management Base stations Unidirectional motor control Precision high voltage current sources

The AD8219 is a high voltage, high resolution, current shunt amplifier. It features a set gain of 60 V/V, with a maximum ±0.3% gain error over the entire temperature range. The buffered output voltage directly interfaces with any typical converter. The AD8219 offers excellent input common-mode rejection from 4 V to 80 V. The AD8219 performs unidirectional current measurements across a shunt resistor in a variety of industrial and telecom applications including motor control, power management, and base station power amplifier bias control.The AD8219 offers breakthrough performance throughout the −40°C to +125°C temperature range. It features a zero drift core, which leads to a typical offset drift of ±100 nV/°C throughout the operating temperature and common-mode voltage range. Special attention is devoted to output linearity being maintained throughout the input differential voltage range, regardless of the common-mode voltage present, while the typical input offset voltage is ±50 μV.The AD8219 is offered in a 8-lead MSOP package.ApplicationsHigh side current sensing 48 V telecom Power management Base stations Unidirectional motor control Precision high voltage current sources

The AD8227 is a low cost, wide supply range instrumentation amplifier that requires only one external resistor to set any gain between 5 and 1000.The AD8227 is designed to work with a variety of signal voltages. A wide input range and rail-to-rail output allow the signal to make full use of the supply rails. Because the input range can also go below the negative supply, small signals near ground can be amplified without requiring dual supplies. The AD8227 operates on supplies ranging from ±1.5 V to ±18 V (2.2 V to 36 V single supply).The robust AD8227 inputs are designed to connect to real-world sensors. In addition to its wide operating range, the AD8227 can handle voltages beyond the rails. For example, with a ±5 V supply, the part is guaranteed to withstand ±35 V at the input with no damage. Minimum as well as maximum input bias currents are specified to facilitate open wire detection.The AD8227 is ideal for multichannel, space-constrained applications. With its MSOP package and 125°C temperature rating, the AD8227 thrives in tightly packed, zero airflow designs.The AD8227 is available in 8-pin MSOP and SOIC packages. It is fully specified for −40°C to +125°C operation.For a similar instrumentation amplifier with a gain range of 1 to 1000, see the AD8226.ApplicationsIndustrial process controlsBridge amplifiersMedical instrumentationPortable data acquisitionMultichannel systems

The AD8229 is an ultralow noise instrumentation amplifierdesigned for measuring small signals in the presence of largecommon-mode voltages and high temperatures.The AD8229 has been designed for high temperature operation. The process is dielectrically isolated to avoid leakage currents at high temperatures. The design architecture was chosen to compensate for the low VBE voltages at high temperatures.The AD8229 excels at measuring tiny signals. It delivers industry leading 1 nV/√Hz input noise performance. The high CMRR of the AD8229 prevents unwanted signals from corrupting theacquisition. The CMRR increases as the gain increases, offering high rejection when it is most needed. The AD8229 is one of the fastest instrumentation amplifiersavailable. Its current feedback architecture provides high bandwidth at high gain, for example, 1.2 MHz at G = 100. Thedesign includes circuitry to improve settling time after largeinput voltage transients. The AD8229 was designed for excellentdistortion performance, allowing use in demanding applicationssuch as vibration analysis.Gain is set from 1 to 1000 with a single resistor. A reference pinallows the user to offset the output voltage. This feature can be useful when interfacing with analog-to-digital converters.For the most demanding applications, the AD8229 is availablein an 8-lead side-brazed ceramic dual in-line package (SBDIP).For space-constrained applications, the AD8229 is available inan 8-lead plastic standard small outline package (SOIC).The AD8229 is also available as Known Good DieApplications Down-hole instrumentation Harsh environment data acquisition Exhaust gas measurements Vibration analysis

The AD8237 is a micropower, zero drift, rail-to-rail input and output instrumentation amplifier. The relative match of two resistors sets any gain from 1 to 1000. The AD8237 has excellent gain accuracy performance that can be preserved at any gain with two ratio-matched resistors.The AD8237 employs the indirect current feedback architecture to achieve a true rail-to-rail capability. Unlike conventional in-amps, the AD8237 can fully amplify signals with common-mode voltage at or even slightly beyond its supplies. This enables applications with high common-mode voltages to use smaller supplies and save power.The AD8237 is an excellent choice for portable systems. With a minimum supply voltage of 1.8 V, a 115 μA typical supply current, and wide input range, the AD8237 makes full use of a limited power budget, yet offers bandwidth and drift performance suitable for bench-top systems.Applications Bridge amplification Pressure measurement Medical instrumentation Thermocouple interface Portable systems Current measurement

The AD8237 is a micropower, zero drift, rail-to-rail input and output instrumentation amplifier. The relative match of two resistors sets any gain from 1 to 1000. The AD8237 has excellent gain accuracy performance that can be preserved at any gain with two ratio-matched resistors.The AD8237 employs the indirect current feedback architecture to achieve a true rail-to-rail capability. Unlike conventional in-amps, the AD8237 can fully amplify signals with common-mode voltage at or even slightly beyond its supplies. This enables applications with high common-mode voltages to use smaller supplies and save power.The AD8237 is an excellent choice for portable systems. With a minimum supply voltage of 1.8 V, a 115 μA typical supply current, and wide input range, the AD8237 makes full use of a limited power budget, yet offers bandwidth and drift performance suitable for bench-top systems.Applications Bridge amplification Pressure measurement Medical instrumentation Thermocouple interface Portable systems Current measurement

The AD8338 is a variable gain amplifier (VGA) for applicationsthat require a fully differential signal path, low power, low noise,and a well-defined gain over frequency. Although the inputs aredifferential, the device can also be driven with a single-endedsource if required.The basic gain function is linear-in-dB and is controlled by thevoltage applied to Pin GAIN. The nominal gain range spansfrom 0 dB to 80 dB for control voltages between 0.1 V to 1.1 Vwith a slope of 12.5 mV/dB. The nominal gain range can beshifted up or down via direct access to Pin INPD and Pin INMD,the current inputs of the VGA. For example, driving the INPDand INMD pins with 50 Ω resistors shifts the gain range up by20 dB, that is, 20 dB to 100 dB, and lowers the input referrednoise of the device to 1.5 nV/√Hz. Additionally, the gain slopecan be inverted via logic Pin MODE.The AD8338 includes additional circuit blocks to enable inputoffset correction and automatic gain control (AGC). DC offsetvoltages are removed by the offset correction circuit, whichbehaves like a high-pass filter whose corner is set with an externalcapacitor. The AGC function varies the gain of the AD8338 tomaintain a constant rms output voltage. An externally appliedvoltage to Pin VAGC with respect to the voltage at Pin VREFsets the output rms amplitude. A capacitor from Pin DETO toground sets the response time of the AGC circuit.The AD8338 offers additional versatility by providing access tothe internal summing nodes of the VGA core and the outputamplifiers. With the addition of a few external passive components,users can customize the gain, bandwidth, input impedance, andnoise profile of the device to fit their application.The AD8338 uses a single-supply voltage of 3.0 V to 5.0 V andis very power efficient, consuming as little as 3 mA quiescentcurrent at mid gain. The AD8338 is available in a 3 mm × 3 mm,RoHS-compliant, 16-lead LFCSP and is specified over theindustrial temperature range of −40°C to +85°C.APPLICATIONS Front end for inductive telemetry systems Ultrasonic signal receivers Signal compression for driving an ADC AGC amplifiers

The AD8420 is a low cost, micropower, wide supply range, instrumentation amplifier with a rail-to-rail output and a novel architecture that allows for extremely flexible design. It is optimized to amplify small differential voltages in the presence of large common-mode signals.The AD8420 is based on an indirect current feedback architecture that gives it an excellent input common-mode range. Unlike conventional instrumentation amplifiers, the AD8420 can easily amplify signals at or even slightly below ground without requiring dual supplies. The AD8420 has rail-to-rail output, and the output voltage swing is completely independent of the input common-mode voltage.Single-supply operation, micropower current consumption, and rail-to-rail output swing make the AD8420 ideal for battery-powered applications. Its rail-to-rail output stage maximizes dynamic range when operating from low supply voltages. Dual-supply operation (±15 V) and low power consumption make the AD8420 ideal for a wide variety of applications in medical or industrial instrumentation.The AD8420 is available in an 8-lead MSOP package. Performance is specified over the full temperature range of −40°C to +85°C, and the part is operational from −40°C to +125°CAPPLICATIONS Bridge amplifiers Pressure Measurement Medical instrumentation Portable data acquisition Multichannel systems