AD620 to adjust gains from 1 to 10,000 It is a low-cost, high-fidelity instrumentation amplifier that requires only one external resistor. Additionally, the AD620 features an 8-lead SOIC and DIP package that is smaller than discrete designs and offers lower power (only 1.3 mA maximum supply current), making it a good fit for battery-powered, portable (or remote) applications . High accuracy of 40 ppm maximum nonlinearity, 50 μV max. low offset voltage and max. With an offset shift of 0.6 μV/°C, the AD620 is ideal for use in sensitive data acquisition systems such as scales and transducer interfaces. Additionally, the AD620's low noise, low input bias current, and low power make it well-suited for medical applications such as ECG and noninvasive blood pressure monitors.