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AD8273 Dataheets PDF



Part Number AD8273
Manufacturers Analog Devices
Logo Analog Devices
Description High Precision Difference Amplifier
Datasheet AD8273 DatasheetAD8273 Datasheet (PDF)

Very Low Distortion, Dual-Channel, High Precision Difference Amplifier AD8273 FEATURES ±4000 V HBM ESD Very low distortion 0.00025% THD + N (20 kHz) 0.0015% THD + N (100 kHz) Drives 600 Ω loads Two gain settings Gain of ½ (−6 dB) Gain of 2 (+6 dB) 0.05% maximum gain error 10 ppm/°C maximum gain drift Excellent ac specifications 20 V/μs minimum slew rate 800 ns to 0.01% settling time High accuracy dc performance 77 dB minimum CMRR 700 μV maximum offset voltage 14-lead SOIC package Supply current.

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Very Low Distortion, Dual-Channel, High Precision Difference Amplifier AD8273 FEATURES ±4000 V HBM ESD Very low distortion 0.00025% THD + N (20 kHz) 0.0015% THD + N (100 kHz) Drives 600 Ω loads Two gain settings Gain of ½ (−6 dB) Gain of 2 (+6 dB) 0.05% maximum gain error 10 ppm/°C maximum gain drift Excellent ac specifications 20 V/μs minimum slew rate 800 ns to 0.01% settling time High accuracy dc performance 77 dB minimum CMRR 700 μV maximum offset voltage 14-lead SOIC package Supply current: 2.5 mA maximum per channel Supply range: ±2.5 V to ±18 V FUNCTIONAL BLOCK DIAGRAM +VS 11 12kΩ 2 6kΩ 12 12kΩ 3 12kΩ 6 6kΩ 6kΩ 13 14 10 06981-001 12kΩ 5 6kΩ 4 –VS Figure 1. 9 8 APPLICATIONS ADC drivers High performance audio Instrumentation amplifier building blocks Level translators Automatic test equipment Sine/cosine encoders GENERAL DESCRIPTION The AD8273 is a low distortion, dual-channel amplifier with internal gain setting resistors. With no external components, it can be configured as a high performance difference amplifier (G = ½ or 2), inverting amplifier (G = ½ or 2), or noninverting amplifier (G = 1½ or 3). The AD8273 operates on both single and dual supplies and only requires 2.5 mA maximum supply current for each amplifier. It is specified over the industrial temperature range of −40°C to +85°C and is fully RoHS compliant. Table 1. Difference Amplifiers by Category Low Distortion AD8270 AD8273 AD8274 AMP03 High Voltage AD628 AD629 Single-Supply Unidirectional AD8202 AD8203 Single-Supply Bidirectional AD8205 AD8206 AD8216 Rev. B 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 rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2008–2010 Analog Devices, Inc. All rights reserved. AD8273* Product Page Quick Links Last Content Update: 11/01/2016 Comparable Parts View a parametric search of comparable parts Evaluation Kits • AD8273/AD8277/AD8279 Evaluation Board Documentation Application Notes • AN-1328: High Performance, Low Noise Studio Microphone with MEMS Microphones, Analog Beamforming, and Power Management Data Sheet • AD8273: Very Low Distortion, Dual-Channel, High Precision Difference Amplifier Data Sheet Technical Books • A Designer's Guide to Instrumentation Amplifiers, 3rd Edition, 2006 User Guides • UG-744: Evaluating the AD8273/AD8277/AD8279 Reference Materials Technical Articles • High-performance Adder Uses Instrumentation Amplifiers Design Resources • AD8273 Material Declaration • PCN-PDN Information • Quality And Reliability • Symbols and Footprints Discussions View all AD8273 EngineerZone Discussions Sample and Buy Visit the product page to see pricing options Technical Support Submit a technical question or find your regional support number * This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to the content on this page does not constitute a change to the revision number of the product data sheet. This content may be frequently modified. AD8273 TABLE OF CONTENTS Features .............................................................................................. 1  Applications....................................................................................... 1  Functional Block Diagram .............................................................. 1  General Description ......................................................................... 1  Revision History ............................................................................... 2  Specifications..................................................................................... 3  Absolute Maximum Ratings............................................................ 4  Maximum Power Dissipation ..................................................... 4  ESD Caution.................................................................................. 4  REVISION HISTORY 8/10—Rev. A to Rev. B Changes to Data Sheet Title ............................................................ 1 Changes to THD + Noise (THD + N) Parameter, Gain Nonlinearity Parameter, and Offset vs. Power Supply Parameter, Table 2 ................................................................................................ 3 Changed −12A Pin to −INA Pin, +12A Pin to +INA Pin, +12B Pin to INB Pin, −12B Pin to −INB Pin, +6B Pin to REFB Pin, −6B Pin to SENSEB Pin, −6A Pin to SENSEA Pin, and +6A Pin to REFA Pin Throughout .................................................................


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