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AD2S83:  Variable Resolution Resolver-to-Digital Converter

Product Details

The AD2S83 is a monolithic 10-, 12-, 14-, or 16-bit tracking resolver-to-digital converter.

The converter allows users to select their own resolution and dynamic performance with external components. The converter allows users to select the resolution to be 10, 12, 14, or 16 bits and to track resolver signals rotating at up to 1040 revs per second (62,400 rpm) when set to 10-bit resolution.

The AD2S83 converts resolver format input signals into a parallel natural binary digital word using a ratiometric tracking conversion method. This ensures high noise immunity and tolerance of long leads allowing the converter to be located remote from the resolver.

A precise analog signal proportional to velocity is also available and will replace a tachogenerator. The AD2S83 operates over reference frequencies in the range 0 Hz to 20,000 Hz.


  • Tracking R/D Converter
  • High Accuracy Velocity Output
  • High Max Tracking Rate 1040 RPS (10 Bits)
  • 44-Lead PLCC Package
  • 10-, 12-, 14-, or 16-Bit Resolution Set by User
  • Ratiometric Conversion
  • Stabilized Velocity Reference
  • Dynamic Performance Set by User
  • Industrial Temperature Range

Functional Block Diagram for AD2S83


Title Content Type File Type
AD2S83: Variable Resolution Resolver-to-Digital Converter Data Sheet (Rev E, 10/2000) (pdf, 187 kB) Data Sheets PDF
AN-203: Using the AD2S80 Series Resolver-to-Digital Converters as Control Transformers  (pdf, 330 kB) Application Notes PDF
AN-234: Digital Resolver Integration  (pdf, 133 kB) Application Notes PDF
AN-264: Dynamic Characteristics of Tracking Converter  (pdf, 205 kB) Application Notes PDF
AN-263: Resolver to Digital Conversion; Simple Alternative to Optical Shaft Encoders  (pdf, 520 kB) Application Notes PDF
AN-266:  Passive Component Selection and Dynamic Modeling for the AD2S80 Series Resolver to Digital Converter  (pdf, 1307 kB) Application Notes PDF
AN-265:  Circuit Applications of the AD2S80 and AD2S81 Resolver to Digital  (pdf, 510 kB) Application Notes PDF
AN-252:  Using the AD2S80 Series Resolver to Digital Converters with Synchro's; Solid State Scott-T Circuit.  (pdf, 306 kB) Application Notes PDF
AN-236:  Speed Measurement and Control with the AD2S83, "Silicon Tachogenerator"  (pdf, 207 kB) Application Notes PDF
Single Chip DSP Motor Control Systems Catching on in Home Appliances  (pdf, 18 kB)
An article by David Krakauer of Analog Devices, reprinted from the October 2000 issue of Appliance Magazine. This article addresses how Embedded DSP motor control is revolutionizing the appliance industry, not only by delivering the highest levels of motor performance, but also by the method employed to deliver that high performance.
Technical Articles PDF
DSP Motor Control in Domestic Appliance Applications  (pdf, 161 kB)
An article by Dr. Aengus Murray of Analog Devices printed in ECN Magazine, May 2000 issue. The article addresses DSP-based motor control systems offering the control bandwidth required to make possible the development of advanced motor drive systems for domestic appliance applications.
Technical Articles PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary 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

AD2S83 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
AD2S83AP Status: Production 44 ld PLCC 44 Ind Tube, 27 $126.05 $96.39 N  Material Info PCN Purchase
AD2S83APZ Status: Production 44 ld PLCC 44 Ind Tube, 27 $114.82 $87.80 Y  Material Info Notify Me Purchase
AD2S83APZ-REEL Status: Last Time Buy 44 ld PLCC 44 Ind Reel, 500 - $87.80 Y  Material Info PDN Purchase
AD2S83IP Status: Production 44 ld PLCC 44 Comm. Tube, 27 $107.14 $81.94 N  Material Info PCN Purchase
AD2S83IPZ Status: Production 44 ld PLCC 44 Comm. Tube, 27 $97.60 $74.63 Y  Material Info Notify Me Purchase
AD2S83IPZ-REEL Status: Production 44 ld PLCC 44 Comm. Reel, 500 $97.60 $74.63 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.

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