GENERAL DESCRIPTION

The AD822-EP is a dual precision, low power FET input op amp that can operate from a single supply of 5 V to 30 V or 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 in the single-supply mode. Output voltage swing extends to within 10 mV of each rail, providing the maximum output dynamic range.

FEATURES

True single-supply operation

  Input voltage range extends below ground

  Output swings rail-to-rail

  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/√Hz @ 10 kHz

  No phase inversion

ENHANCED PRODUCT FEATURES

Supports defense and aerospace applications (AQEC standard)

Military temperature range (−55°C to +125°C)

Controlled manufacturing baseline

One assembly/test site

One fabrication site

Enhanced product change notification

Qualification data available on request

APPLICATIONS

Photodiode preamps

Active filters

12-bit to 14-bit data acquisition systems

Low power references and regulators