AD8634:  High Temperature, Low Noise, RRO Dual Operational Amplifier

Product Details

Product Status:Recommended for New Designs

The AD8634 is a precision, 9.7 MHz bandwidth, dual amplifier that features rail-to-rail outputs. The AD8634 is guaranteed to operate from 3 V to 30 V (or from ±1.5 V to ±15 V) and at very high temperatures.

The AD8634 is well suited for applications that require both ac and dc precision performance. The combination of wide bandwidth, low noise, and precision makes the AD8634 useful in a wide variety of applications, including filters and interfacing with a variety of sensors.

This dual-channel op amp is offered in an 8-lead SOIC package with an operating temperature range of −40°C to +175°C. It is also available in an 8-lead ceramic flat package (FLATPACK) with an operating temperature range of −40°C to +210°C. Both packages are designed for robustness at extreme temperatures and are qualified for up to 1000 hours of operation at the maximum temperature rating.

The AD8634 is a member of a growing series of high temperature qualified products offered by Analog Devices, Inc. For a complete selection table of available high temperature products, see the high temperature product list and qualification data available at


  • Down-hole drilling and instrumentation
  • Avionics
  • Heavy industrial
  • High temperature environments


  • Extreme high temperature
    −40°C to +210°C, FLATPACK
    −40°C to +175°C, SOIC
  • Rail-to-rail output
  • Low power: 1.3 mA maximum
  • Gain bandwidth product:
    9.7 MHz typical at Av = 100
  • Low offset voltage:
    250 μV maximum
  • Unity-gain stable
  • High slew rate:
    5.0 V/μs typical at 210°C
  • Low noise:
    4.2 nV/√Hz typical
    at 1 kHz and 210°C
  • Wide supply range: 3V to 30V
  • Mono-Metallic Wire Bonding

AD8634 Pin Configuration

Design Tools,Models,Drivers & Software

Title Content Type File Type
OpAmp Error Budget Calculator
An online tool to illustrate range, gain and accuracy issues in simple opamp buffers.
Amplifier Error Budget Analysis HTML
This tool will help with the selection, evaluation and troubleshooting of voltage feedback Op-Amps. It uses typical data to model the behavior of a selected amplifier. It allows a user to select an amplifier, configure a circuit, apply a signal and evaluate the performance. It is useful for checking an amplifier's spec's such as Bandwidth, Slew Rate, Input/Output Range, Gain Error, Load Current, Stability Issues and DC Errors in a given circuit.
ADIsim Design/Simulation Tools HTML
Analog Bridge Wizard
The Analog Bridge Wizard recommends amplifiers and ADC's for your bridge application. Find out which op-amp or in-amp is best for your design, and view the error budget analysis for that solution.
ADIsim Design/Simulation Tools HTML
AD8634 SPICE Macro Model SPICE Models HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

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

AD8634 Model Options
Model Package Pins Temp.
Price RoHS View PCN/ PDN Check Inventory/
AD8634-KGD-CHIP Status: Production CHIPS OR DIE 0 Ind Tray, 100 - Y  Material Info Notify Me Purchase
AD8634HFZ Status: Production 8 ld Flatpack 8 Ind Tube, 19 - Y  Material Info Notify Me Purchase
AD8634HRZN Status: Production 8 ld SOIC 8 Ind Tube, 98 - Y  Material Info Notify Me 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.

EVAL-OPAMP-2 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
EVAL-PRAOPAMP-2CPZ Status: Production Dual CP-8 lead LFCSP Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-2RMZ Status: Production Dual RM-8 lead MSOP Evaluation Board $20.19 Yes -
EVAL-PRAOPAMP-2RZ Status: Production Dual R-8 lead SOIC Evaluation Board $20.19 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

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