AD2S1200:  12-Bit R/D Converter with Reference Oscillator

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 ...More

AD2S1200:  12-Bit R/D Converter with Reference Oscillator

Product Description

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 V p-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.

Features

  • Complete monolithic R/D converter
  • Parallel and serial 12-bit data ports
  • System fault detection
  • Absolute position and velocity outputs
  • Differential inputs
  • ±11 arc minutes of accuracy
  • 1,000 rps maximum tracking rate:
    12-bit resolution
  • 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%

Diagrams

AD2S1200 Diagram
Functional Block Diagram for AD2S1200

Specifications

Resolution (Bits) 12bit
Package 44LQFP
Max Track Rate (+/- rps) 1000
Accuracy (arcmin) 22/11
Temp_Range (C) -40 to +125
Ref Freq (Hz) 10k-20k
Vel o/p Yes
Vel Lnrty (+/- FSR max) 2lsb
Power (mW) 50mW
Interface Parallel/Serial
Encoder Emulation Yes
Supplies (V) +5V

Explore Other Products

AD2S1210 - Variable Resolution, 10-Bit to 16-Bit R/D Converter with Reference Oscillator

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Part# Resolution (Bits) Max Track Rate (+/- rps) Accuracy (arcmin) Ref Freq (Hz) Vel o/p Vel Lnrty (+/- FSR max) Interface Encoder Emulation Price* (1000-4999)
AD2S1200 12 1,000 22/11 10k-20k Yes 2lsb Parallel/Serial Yes $12.14
AD2S1205 12 1,250 22/11 10k-20k Yes 2lsb Parallel/Serial Yes $12.14
AD2S1210 16 3125/1250/625/156.25 5 2k-20k Yes 2 to 16 lsb Parallel/Serial Yes $12.00
AD2S44 14 20 4 400-2.6k No n/a Parallel No -
AD2S80A 16 1040/260/65/16.25 8/4/2 50-20k Yes 3 Parallel No $48.09
AD2S83 16 1040/260/65/16.25 8 0-20k Yes 0.25 to1 Parallel No $71.08
AD2S90 12 500 10.6 3k-20k Yes n/a Serial Yes $27.83
RDC1740 14 27 5.3 400-2.6k No n/a Parallel No -
SDC1740 14 27 5.3 400-2.6k No n/a Parallel No $1191.67
SDC1741 12 18 15.3 400-2.6k No n/a Parallel No -
SDC1742 12 18 8.5 400-2.6k No n/a Parallel No $1294.22

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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  • Automotive: -40 to +125 degrees Celsius
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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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*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.
**Sample availability may be better than production availability. Please enter samples iinto your cart to check sample availability.

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