The AD822 is a single-supply, rail-to-rail, low power FET-input op amp from Analog Devices. It features high load drive, excellent AC performance, low power, good DC performance and low noise. 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 references and regulators.
The AD822 op‑amp offers true single‑supply capability, rail‑to‑rail output swing, and a wide input voltage range that extends below ground. It is suited for battery‑powered precision instrumentation, photodiode preamps, active filters, 12‑ to 14‑bit data‑acquisition systems, and medical instrumentation.
Available in PDIP, MSOP, and SOIC packages, the device provides up to 350 pF capacitive load drive, a minimum output current of 15 mA, and low quiescent current (800 µA per amplifier). Two performance grades (A and B) cover an industrial temperature range of –40 °C to +85 °C.
| Supply voltage range (single‑supply) | 5 V to 30 V |
|---|---|
| Supply voltage range (dual‑supply) | ±2.5 V to ±15 V |
| Quiescent current | 800 µA per amplifier |
| Unity‑gain bandwidth | 1.8 MHz |
| Slew rate | 3 V/µs |
| Maximum input offset voltage | 800 µV |
| Input bias current | ≤25 pA |
| Capacitive load drive | 350 pF |
It operates from a single supply of 5 V to 30 V or from dual supplies of ±2.5 V to ±15 V.
The AD822 draws a maximum of 800 µA of quiescent current per amplifier.
It can drive up to 350 pF of direct capacitive load as a follower.
The maximum input offset voltage is 800 µV, with a drift of 2 µV/°C.