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 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 and Benefits- 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%
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Data Sheets
User Guides
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| AD2S1200WSTZ Production | 44 ld LQFP (10x10mm) | OTH 160 | -40 to 125C | 17.5 | 14.81 | Y |
| AD2S1200YSTZ Production | 44 ld LQFP (10x10mm) | OTH 160 | -40 to 125C | 21.87 | 18.52 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| EVAL-AD2S1200SDZ | Evaluation Board | 99 | Y |
| EVAL-SDP-CB1Z | Evaluation Controller Board | 99 | Y |
