AD620 instrumentation amplifier used to be applied in applications such as weigh scales, ECG and medical
instrumentation, transducer interface, data acquisition systems, industrial process controls and battery-powered equipment.
According to the datasheet, the AD620 known to be an easy to use, excellent DC performance, Low Noise,
and Excellent AC specifications. You will see in the AD620 datasheet,
the theory operation of the device which describe you with Typical
Bridge Application Error Budget, Pressure Measurement, Medical ECG,
Precision V-I Converter, Circuit to Attenuate RF Interference, and etc.
Find complete read about Analog Device High Accuracy Instrumentation Amplifier in the AD620 Datasheet (source: analog.com)