AD822 is a single-supply, rail-to-rail low power FET-input operational amplifier. It features true single-supply operation, output swings rail-to-rail, input voltage range extends below ground, single-supply capability from 3V to 36V, and dual-supply capability from ±1.5V to ±18V. It is suitable for battery-powered precision instrumentation, photodiode preamps, active filters, 12-bit to 14-bit data acquisition systems, medical instrumentation, and low power applications.