AD8137YR-REEL7

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The AD8137YR-REEL7 is a high precision linear difference amplifier that is typically used as a current shunt instrumentation amplifier, allowing a fully differential amplification of currents greater than 200µA. It is part of the ADI family of linear parts, which are designed for precision instrumentation and automotive applications. The high common-mode rejection, wide bandwidth, and low saturation voltage of the part make it ideal for use in a wide range of instrumentation and automotive applications.

The linear output of the AD8137YR-REEL7 amplifier operates in a very high precision range over a wide operating temperature range of –40°C to +125°C. It offers a typical common-mode rejection ratio (CMR) of 125 dB, a large gain bandwidth product of 15 kHz and a gain drift of 0.3 µV/°C. The amplifier is capable of achieving a maximum output voltage swing of ±18V, while the input common-mode voltage range is bounded between 4V and 4.5V.

At the heart of the AD8137YR-REEL7 is an differential amplifier comprised of a matched pair of bipolar transistors, connected in the classic instrumentation amplifier configuration. The input mirror bias and the output of the amplifier is kept symmetrical via a balanced gain. The amplifier gain is determined by resistor values in the negative feedback loop. The output bias is also set with a differential pair of resistors that keep the output common-mode voltage at 4.5V, which allows for less of a power dissipation.

In addition to having a high CMR and large gain-bandwidth product, the AD8137YR-REEL7 offers excellent power supply rejection of 99 dB, stable gain of 0.01%, and very low distortion of 1%. This makes the amplifier suitable for use in a wide range of instrumentation and automotive applications. The amplifier can be used to measure current, amplify digital signals, and provide a differential gain. It is also capable of providing low-noise amplification of low-bandwidth signals.

The AD8137YR-REEL7 is a highly reliable amplifier that is well-suited for precision instrumentation, automotive, and other applications requiring high levels of performance and accuracy. The amplifier is supplied in a surface mounted 8-pin SOIC package, offering enhanced performance and power savings. It can operate over a wide temperature range of –40°C to +125°C, thus providing optimal performance for a variety of applications.

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