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AD823A:  17 MHz, Rail-to-Rail FET Input Dual Amplifier

Product Details

Product Status:Recommended for New Designs

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 17 mV of each rail for IOUT ≤ 100 µA, providing outstanding output dynamic range.

An offset voltage of 700 µV maximum, an offset voltage drift of 1 µV/°C, typical input bias currents of 0.3 pA, and low input voltage noise provide dc precision with source impedances up to 1 GΩ. The AD823A provides 17 MHz, −3 dB bandwidth, −110 dB THD at 20 kHz, and a 30 V/µs slew rate with a low supply current of 2.6 mA per amplifier. The AD823A drives more than 1000 pF of direct capacitive load as a follower and provides a linear output current of 40 mA, 0.5 V from the supply rails. This lets the amplifier handle a wide range of load conditions.

This combination of ac and dc performance, plus the outstanding load drive capability, results in an exceptionally versatile ampli¬fier for applications such as ADC drivers, high speed active filters, and other low voltage, high dynamic range systems.

The AD823A is available over the industrial temperature range of −40°C to +85°C and is offered in an 8-lead SOIC package and the 8-lead MSOP package.

Applications
  • Battery-powered precision instrumentation
  • hotodiode preamps
  • Active filters
  • 12-bit to 16-bit data acquisition systems
  • Medical instrumentation

FEATURES and BENEFITS

  • 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 1000 pF, G = +1
    - Linear output current of 40mA, 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
  • Good dc performance
    - 700 µV maximum input offset voltage
    - 1 µV/°C offset voltage drift
    - 25 pA maximum input bias current
  • Low distortion: −110 dBc worst harmonic at 20 kHz
  • Low noise: 14 nV/√Hz at 10 kHz
  • No phase inversion with inputs to the supply rails

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD823A SPICE Macro-Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

AD823A Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD823AARMZ Status: Production MICRO SOIC 8 Tube, 50 $2.87 $2.39 Y  Material Info Notify Me Purchase Sample
AD823AARMZ-R7 Status: Production MICRO SOIC 8 Reel, 1000 - $2.39 Y  Material Info Notify Me Purchase
AD823AARZ Status: Production SOIC 150 MIL 8 Tube, 98 $3.35 $2.79 Y  Material Info PCN Purchase Sample
AD823AARZ-R7 Status: Production SOIC 150 MIL 8 Reel, 1000 - $2.79 Y  Material Info PCN Purchase
AD823AARZ-RL Status: Production SOIC 150 MIL 8 Reel, 2500 - $2.79 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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