GENERAL DESCRIPTION
The AD823A is a dual precision, 17 MHz, JFET input op amp manufactured in the extra fast complementary bipolar (XFCB) process. The AD823A can operate from a single supply of 3 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 20 mV of each rail for IOUT ≤ 100 μA, providing outstanding output dynamic range. It also has a linear output current of 40 mA, 0.5 V from the supply rails.

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 470 pF (G = +1, 25% overshoot)
      Linear output current of 40 mA, 0.5 V from supplies
   Excellent ac performance on 2.6 mA/amplifier
      −3 dB bandwidth of 17 MHz, G = +1
      325 ns settling time to 0.01% (2 V step)
      Slew rate of 30 V/μs
      Low distortion: −108 dBc at 20 kHz (G = −1, RL = 2 kΩ)
   Good dc performance
      700 μV maximum input offset voltage
      1 μV/°C offset voltage drift
      25 pA maximum input bias current
   Low noise: 14 nV/√Hz at 10 kHz
   No phase inversion with inputs to the supply rails

APPLICATIONS
   Photodiode preamps
   Active filters
   12-bit to 16-bit data acquisition systems
   Medical instrumentation
   Precision instrumentation