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Product Details

This amplifier has ultralow offset, drift, and bias current. The AD8629S is a wide bandwidth auto-zero amplifier featuring rail-to-rail input and output swing and low noise. Operation is fully specified from 2.7 V to 5 V single supply (±1.35 V to ±2.5 V dual supply). The AD8629S provide benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using Analog Devices, Inc., topology, these zero-drift amplifiers combines high accuracy and low noise. No external capacitor is required. In addition, the AD8629S greatly reduce the digital switching noise found in most chopper-stabilized amplifiers. The AD8629S is suited for applications where error sources cannot be tolerated. Position and pressure sensors, and strain gage amplifiers benefit greatly from nearly zero drift over their operating temperature range. Many systems can take advantage of the rail-to-rail input and output swings provided by the AD8629S to reduce input biasing complexity and maximize SNR. The AD8629S is specified for the extended industrial temperature range (−55°C to +125°C). The AD8629 is available in a 10-lead cerpack package.


  • Low offset voltage: 1 μV
  • Rail-to-rail input and output swing
  • 5 V single-supply operation
  • Low supply current: 1.0 mA
  • Overload recovery time: 50 μs
  • Very low input bias current

AD8629S Functional Block Diagram


Title Content Type File Type
AD8629S: Zero-Drift, Single-Supply Rail-to-Rail Input/Output Operational Amplifier Aerospace Data Sheet (Rev E, 10/2012) (pdf, 132 kB) Data Sheets PDF
RAQs index Rarely Asked Questions HTML
AD8629S Generic Radiation Report  (pdf, 720 kB) Generic Radiation Reports PDF
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
AD8629 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.

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Price, packaging, availability

AD8629S Model Options
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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