The AD622 is a low cost, quite accurate instrumentation amplifier in traditional pin configuration requiring only one external resistor to set any gain between 2 and 1000. For a gain of 1, no external resistor is required. The AD622 is a complete difference or subtractor amplifier system. With the incorporation of precision laser-trimmed resistors it also provides superior linearity and common-mode rejection.
The AD622 replaces low cost, discrete, multi op-amp instrumentation amplifier designs and offers good commonmode rejection, superior linearity, temperature stability, reliability, power, and board area consumption.