AD822-EP Datasheet

• 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/√Hz @ 10 kHz
  • No phase inversion

• Supports defense and aerospace applications (AQECstandard)
• 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

• Photodiode preamps
• Active filters
• 12-bit to 14-bit data acquisition systems
• Low power references and regulators

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.

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 THD at 10 kHz,and 3 V/μs slew rate are provided with a low supply current of 800 μA per amplifier.