AD620ANZ
Overview
The AD620ANZ is a low-cost, high-accuracy instrumentation amplifier that requires only one external resistor to set gains from 1 to 10,000. It is designed to replace discrete three-op-amp designs, offering superior DC and AC performance in a compact 8-lead PDIP package. With a maximum supply current of 1.3mA and a wide power supply range of +/-2.3V to +/-18V, it is well-suited for battery-powered and portable applications.
Why Choose This Part
The AD620ANZ offers exceptional DC performance with low input offset voltage and low noise (9 nV/sqrtHz). It significantly simplifies circuit design by allowing gain to be set with a single resistor, reducing component count and improving reliability over discrete implementations. Its high common-mode rejection ratio and low power consumption make it a standard choice for precision sensing.
Applications
Key Specifications
Getting Started
To use the AD620ANZ, calculate the gain resistor value using the formula Rg = 49.4 kOhm / (G - 1) and place it between pins 1 and 8. Ensure bypass capacitors (typically 0.1 uF and 10 uF) are placed close to the power supply pins to maintain stability. For prototyping, this PDIP version is directly compatible with standard 0.1-inch pitch breadboards and sockets.
