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AD8273:  Very Low Distortion, Dual-Channel, Audio Difference Amplifier

Product Details

Product Status:Recommended for New Designs

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.


  • ADC drivers
  • High performance audio
  • Instrumentation amplifier building blocks
  • Level translators
  • Automatic test equipment
  • Sine/cosine encoders


  • ±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 for AD8273


Title Content Type File Type
AD8273: Very Low Distortion, Dual-Channel, High Precision Difference Amplifier Data Sheet (Rev B, 08/2010) (pdf, 412 kB) Data Sheets PDF
CN0284: High Performance, Low-Noise Studio Microphone with MEMS Microphones, Analog Beamforming, and Power Management  (pdf, 276 kB) Circuit Note PDF
A Designer's Guide to Instrumentation Amplifiers (3rd Edition) Design Handbooks HTML
UG-744: Evaluating the AD8273/AD8277/AD8279  (pdf, 1006 kB) User Guides PDF
High-performance Adder Uses Instrumentation Amplifiers
Make an adder circuit using instrumentation amplifiers to increase input impedance.
(EDN, 9/3/2009)
Technical Articles HTML
Industrial ICs
Industrial ICs Solutions Bulletin, Volume 10, Issue 8
Solutions Bulletins HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

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Price, packaging, availability

AD8273 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
AD8273ARZ Status: Production 14 ld SOIC 14 Ind Tube, 56 $1.92 $1.60 Y  Material Info PCN Purchase Sample
AD8273ARZ-R7 Status: Production 14 ld SOIC 14 Ind Reel, 1000 $1.92 $1.60 Y  Material Info PCN Purchase
AD8273ARZ-RL Status: Production 14 ld SOIC 14 Ind Reel, 2500 $1.92 $1.60 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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