AD8476BCPZ-RL

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The AD8476BCPZ-RL is a low noise instrumentation amplifier from Analog Devices. This instrumentation amplifier is designed for use with high impedance sensor signals where low noise and offset integrity is the highest priority for applications such as ionic sensing, current sensing, pressure and temperature monitoring and motion detection. The AD8476BCPZ-RL has an input voltage range of ±12V and an output voltage range of ±12V and a supply voltage of ±7V.

The AD8476BCPZ-RL consists of two amplifiers. The first amplifier is referred to as the input amplifier and contains an input differential pair, bias current and a feedback path, while the other is referred to as the output amplifier and contains a gain setting resistor and an output buffer, among other components. Both amplifiers are connected in series.

The gain of the AD8476BCPZ-RL is adjustable over a wide range. The gain of the input amplifier is set by the resistance of the gain setting resistor and the gain of the output amplifier is set by the voltage on its output. The combination of the two amplifiers results in a gain that is the product of their individual gains. The total gain is controlled by the voltage at the reference in the input amplifier.

In addition to setting the gain, the AD8476BCPZ-RL also has built-in temperature compensation. This feature reduces the effect of temperature-induced offset error on the amplifier\'s output. Moreover, the AD8476BCPZ-RL is equipped with open-loop compensation which minimizes the effect of external noise sources.

In terms of performance, the AD8476BCPZ-RL offers a high CMRR of 83dB, high common mode rejection and low noise performance. It also exhibits excellent linearity and has a typical offset voltage of 0.1mV. The AD8476BCPZ-RL also has a very long settling time of 4 µs and a fast response time of 2.5 µs.

The AD8476BCPZ-RL is suitable for a variety of applications such as precision instrumentation, medical and industrial process control and many others. Its wide input and output voltage range, adjustable gain and built-in temperature compensation make it an ideal solution for noise-sensitive applications.

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