AD823 Datasheet | Analog Devices

Data Sheet Features Single-supply operation Output swings rail-to-rail Input voltage range extends below ground Single-supply capability from 3 V to 36 V High load drive Capacitive load drive of 500 p F, G = +1 Output current of 15 m A, 0.5 V from supplies Excellent ac performance on 2.6 m A/amplifier - 3 d B bandwidth of 16 MHz, G = +1 350 ns settling time to 0.01% (2 V step) Slew rate of 22 V/µs Good dc performance 800 µV maximum input offset voltage 2 µV/°C offset voltage drift 25 p A maximum input bias current Low distortion: - 108 d Bc worst harmonic @ 20 k Hz Low noise: 16 n V/√Hz @ 10 k Hz No phase inversion with inputs to the supply rails APPLICATIONS Battery-powered precision instrumentation Photodiode preamps Active filters 12-bit to 16-bit data acquisition systems Medical instrumentation GENERAL DESCRIPTION The AD823 is a dual precision, 16 MHz, JFET input op amp that can operate from a single supply of 3.0 V to 36 V or from dual supplies of ±1.5 V to ±18 V. It has true single-supply capability with an input voltage range extending below ground in single-supply mode. Output voltage swing extends to within 50 m V of each rail for IOUT ≤ 100 µA, providing outstanding output dynamic range. An offset voltage of 800 µV maximum, an offset voltage drift of 2 µV/°C, input bias currents below 25 p A, and low input voltage noise provide dc precision with source impedances up to a Gigaohm. It provides 16 MHz, - 3 d B bandwidth, - 108 d B THD @ 20 k Hz, and a 22 V/µs slew rate with a low supply current of 2.6 m A per amplifier. The AD823 drives up to 500 p F of direct capacitive load as a follower and provides an output current of 15 m A, 0.5 V from the supply rails. This allows the amplifier to handle a wide range of load conditions. Dual, 16 MHz, Rail-to-Rail FET Input Amplifier AD823 CONNECTION DIAGRAM 00901-001 OUT1 1 - IN1 2 +IN1 3 - VS 4 AD823 8 +VS 7 OUT2 6 - IN2 5 +IN2 Figure 1. 8-Lead PDIP and SOIC RL = 100kΩ CL = 50p F +VS = +3V 3V G = +1 00901-002 500m...