1. Products
  2. A/D Converters (ADC)
  3. Integrated/Special Purpose A/D Converters
  4. Synchro/Resolver to Digital Converters
  5. AD2S1200


Features and Benefits

  • Complete monolithic R/D converter
  • Parallel and serial 12-bit data ports
  • System fault detection
  • Absolute position and velocity outputs
  • Differential inputs
  • 1,000 rps maximum tracking rate: 12-bit resolution
  • ±11 arc minutes of accuracy
  • Incremental encoder emulation: 1,024 pulses/rev
  • Programmable sinusoidal oscillator on-board
  • Compatible with DSP and SPI® interface standards
  • 204.8 kHz square wave output
  • Single-supply operation: 5.00 V ± 5%

Product Details

The AD2S1200 is a complete 12-bit resolution tracking resolver-to-digital converter, integrating an on-board programmable sinusoidal oscillator that provides sine wave excitation for resolvers. An external 8.192 MHz crystal is required to provide precision time reference. This clock is internally divided to generate a 4.096 MHz clock to drive all the peripherals.

The converter accepts 3.6 VP-P ±10% input signals, in the range of 10 kHz to 20 kHz on the Sin and Cos inputs. A Type II servo loop is employed to track the inputs and convert the input Sin and Cos information into a digital representation of the input angle and velocity. The bandwidth of the converter is set internally to 1.7 kHz with an external 8.192 MHz crystal. The maximum tracking rate is 1,000 rps.

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
AD2S1200WSTZ Material Declaration Reliability Data 44-Lead LQFP (10mm x 10mm)
AD2S1200YSTZ Material Declaration Reliability Data 44-Lead LQFP (10mm x 10mm)
Wafer Fabrication Data

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Evaluation Boards

Pricing displayed is based on 1-piece.

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.