Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier Data Sheet AD8629-EP FEATURES PIN CONFIGURATION Lowest auto-zero amplifier noise OUT A 1 8 V+ Low offset voltage: 1 V typical AD8629-EP IN A 2 7 OUT B TOP VIEW Input offset drift: 0.002 V/C typical +IN A 3 6 IN B (Not to Scale) Rail-to-rail input and output swing V 4 5 +IN B 5 V single-supply operation Figure 1. 8-Lead SOIC N (R-8) High gain, CMRR, and PSRR: 130 dB Very low input bias current: 100 pA maximum GENERAL DESCRIPTION Low supply current: 1.0 mA The AD8629-EP amplifier has ultralow offset, drift, and bias Overload recovery time: 50 s current. The device is a wide bandwidth auto-zero amplifier No external components required featuring rail-to-rail input and output swing and low noise. Operation is fully specified from 2.7 V to 5 V single supply ENHANCED PRODUCT FEATURES (1.35 V to 2.5 V dual supply). Supports defense and aerospace applications (AQEC standard) Extended temperature range: 55C to +125C The AD8629-EP provides benefits previously found only in Controlled manufacturing baseline expensive auto-zeroing or chopper-stabilized amplifiers. Using One assembly/test site Analog Devices, Inc., topology, this zero-drift amplifier One fabrication site combines low cost with high accuracy and low noise. No Enhanced product change notification external capacitor is required. In addition, the AD8629-EP Qualification data available on request greatly reduces the digital switching noise found in most chopper-stabilized amplifiers. APPLICATIONS With an offset voltage of only 1 V, drift of less than 0.05 V/C, Pressure and position sensors and noise of only 0.5 V p-p (0 Hz to 10 Hz), the AD8629-EP is Strain gage amplifiers suited for applications where error sources cannot be tolerated. Medical instrumentation Position and pressure sensors, medical equipment, and strain Thermocouple amplifiers gage amplifiers benefit greatly from nearly zero drift over the Precision current sensing operating temperature range. Many systems can take advantage Photodiode amplifiers of the rail-to-rail input and output swings provided by the AD8629-EP to reduce input biasing complexity and maximize SNR. The AD8629-EP is specified for the extended industrial temperature range (55C to +125C). The AD8629-EP is available in a standard 8-lead narrow SOIC plastic package. Rev. A Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20022015 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 12890-001AD8629-EP Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Electrical CharacteristicsVS = 2.7 V........................................4 Enhanced Product Features ............................................................ 1 Absolute Maximum Ratings ............................................................5 Applications ....................................................................................... 1 Thermal Characteristics ...............................................................5 Pin Configuration ............................................................................. 1 ESD Caution...................................................................................5 General Description ......................................................................... 1 Typical Performance Characteristics ..............................................6 Revision History ............................................................................... 2 Outline Dimensions ..........................................................................8 Specifications ..................................................................................... 3 Ordering Guide .............................................................................8 Electrical CharacteristicsVS = 5.0 V ....................................... 3 REVISION HISTORY 8/15Rev. 0 to Rev. A Changes to Ordering Guide ............................................................ 8 6/15Revision 0: Initial Version Rev. A Page 2 of 8