AD823AR

AD823AR Description

The AD823AR is a dual precision, 16 MHz, JFET input op amp that may be powered by two 1.5 V to 18 V supplies or a single 3.0 V to 36 V supply. In single-supply mode, the input voltage range of this device extends below ground, demonstrating its real single-supply capability. For IOUT 100 A, the output voltage swing is within 50 mV of each rail, resulting in an exceptional output dynamic range. With source impedances up to a Gigaohm, dc precision is provided by an offset voltage with a maximum of 800 V, an offset voltage drift of 2 V/°C, input bias currents under 25 pA, and low input voltage noise. It offers a low supply current of 2.6 mA per amplifier, 16 MHz, 3 dB bandwidth, 108 dB THD @ 20 kHz, and a 22 V/s slew rate. The AD823 operates as a follower and can drive direct capacitive loads up to 500 pF while delivering an output current of 15 mA and 0.5 V from the supply rails. The amplifier can now handle a variety of load situations thanks to this.

AD823AR 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 pF, G = +1

  The output current of 15 mA, 0.5 V from supplies

• Excellent ac performance on 2.6 mA/amplifier

  Slew rate of 22 V/μs

  ?3 dB bandwidth of 16 MHz, G = +1

  350 ns settling time to 0.01% (2 V step)

• Good dc performance

  2 μV/°C offset voltage drift

  25 pA maximum input bias current

  800 μV maximum input offset voltage

• Low noise: 16 nV/√Hz @ 10 kHz

• No phase inversion with inputs to the supply rails

• Low distortion: ?108 dBc worst harmonic @ 20 kHz

AD823AR Applications

• Active filters

• Photodiode preamps

• Medical instrumentation

• 12-bit to 16-bit data acquisition systems

• Battery-powered precision instrumentation