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

The AD2S1210 is a complete 10-bit to 16-bit resolution tracking resolver-to-digital converter, integrating an on-board programmable sinusoidal oscillator that provides sine wave excitation for resolvers.

The converter accepts 3.15 V p-p ± 27% input signals, in the range of 2 kHz to 20 kHz on the sine and cosine inputs. A Type II servo loop is employed to track the inputs and convert ...More

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

Product Description

The AD2S1210 is a complete 10-bit to 16-bit resolution tracking resolver-to-digital converter, integrating an on-board programmable sinusoidal oscillator that provides sine wave excitation for resolvers.

The converter accepts 3.15 V p-p ± 27% input signals, in the range of 2 kHz to 20 kHz on the sine and cosine inputs. A Type II servo loop is employed to track the inputs and convert the input sine and cosine information into a digital representation of the input angle and velocity. The maximum tracking rate is 3125 rps.

Product Highlights

  1. Ratiometric tracking conversion. The Type II tracking loop provides continuous output position data without conversion delay. It also provides noise immunity and tolerance of harmonic distortion on the reference and input signals.
  2. System fault detection. A fault detection circuit can sense loss of resolver signals, out-of-range input signals, input signal mismatch, or loss of position tracking. The fault detection threshold levels can be individually programmed by the user for optimization within a particular application.
  3. Input signal range. The sine and cosine inputs can accept differential input voltages of 3.15 V p-p ± 27%.
  4. Programmable excitation frequency. Excitation frequency is easily programmable to a number of standard frequencies between 2 kHz and 20 kHz.
  5. Triple format position data. Absolute 10-bit to 16-bit angular position data is accessed via either a 16-bit parallel port or a 4-wire serial interface. Incremental encoder emulation is in standard A-quad-B format with direction output available.
  6. Digital velocity output. 10-bit to 16-bit signed digital velocity accessed via either a 16-bit parallel port or a 4-wire serial interface.

Applications

  • DC and ac servo motor control
  • Encoder emulation
  • Electric power steering
  • Electric vehicles
  • Integrated starter generators/alternators
  • Automotive motion sensing and control

RESOURCES & TOOLS

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EVALUATION BOARDS & DEVELOPMENT KITS

  • Complete monolithic resolver-to-digital converter
  • 3125 rps maximum tracking rate (10-bit resolution)
  • ±2.5 arc minutes of accuracy
  • 10-/12-/14-/16-bit resolution, set by user
  • Parallel and serial 10-bit to 16-bit data ports
  • Absolute position and velocity outputs
  • System fault detection
  • See data sheet for additional features
  • Resolution (Bits): 16bit
  • Package: 48LQFP
  • Max Track Rate (+/- rps): 3125/1250/625/156.25
  • Accuracy (arcmin): 5
  • Temp_Range (C): -40 to +125
  • Ref Freq (Hz): 2k-20k
  • Vel o/p: Yes
  • Vel Lnrty (+/- FSR max): 2 to 16 lsb
  • Power (mW): 50mW
  • Interface: Parallel/Serial
  • Encoder Emulation: Yes
  • Supplies (V): +5V

AD2S1210 Functional Block Diagram

Similar Products

arrow View Full Interactive Product Selection Table
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 $50.49
AD2S83 16 1040/260/65/16.25 8 0-20k Yes 0.25 to1 Parallel No $74.63
AD2S90 12 500 10.6 3k-20k Yes n/a Serial Yes $29.22
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
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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 into your cart to check sample availability.