AD2S1210 R/D Converter IC Chip

AD2S1210(Variable Resolution, 10-Bit to l6-Bit R/D Converter with Reference Oscillator)

Introduction

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 rang of 2kHz to 20kHz 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.

Feature

• 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
• Programmable fault detection thresholds
• Differential inputs
• Incremental encoder emulation
• Programmable sinusoidal oscillator on-board
• Compatible with DSP and SPI interface standards
• 5V supply with 2.3V to 5V logic interface
• -40°C to +125°C temperature rating

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