AD822BRZ Operational amplifier, 2-fold, 3 V/µs, 1.8 MHz, SO-8

AD822, Single-Supply, Rail-to-Rail Low Power FET-Input Op Amp

Descriptions: The AD822 is a dual precision, low power FET input op amp that can operate from a single supply of 5 V to 30 V or from dual supplies of ±2.5 V to ±15 V. It has true single-supply capability with an input voltage range extending below the negative rail, allowing the AD822 to accommodate input signals below ground while in the single-supply mode. Output voltage swing extends to within 10 mV of each rail, providing the maximum output dynamic range. Offset voltage of 800 µV maximum, offset voltage drift of 2 µV/°C, input bias currents below 25 pA, and low input voltage noise provide dc precision with source impedances up to a gigaohm. The 1.8 MHz unity-gain bandwidth, -93 dB total harmonic distortion (THD) at 10 kHz, and 3 V/µs slew rate are provided with a low supply current of 800 µA per amplifier.

Features: - True single-supply operation - Output swings rail-to-rail - Input voltage range extends below ground - Single-supply capability from 5 V to 30 V - Dual-supply capability from ±2.5 V to ±15 V - High load drive - Capacitive load drive of 350 pF, G = +1 - Minimum output current of 15 mA - Excellent ac performance for low power - 800 µA maximum quiescent current per amplifier - Unity-gain bandwidth: 1.8 MHz Slew rate of 3 V/µs - Good dc performance - 800 µV maximum input offset voltage - 2 µV/°C typical offset voltage drift - 25 pA maximum input bias current - Low noise - 13 nV/vHz at 10 kHz - No phase inversion

Applications: - Battery-powered precision instrumentation - Photodiode preamps - Active filters - 12-bit to 14-bit data acquisition systems - Medical instrumentation - Low power references and regulators