AD2S1210

Data Sheet Variable Resolution, 10-Bit to 16-Bit R/D Converter with Reference Oscillator AD2S1210 FEATURES Complete monolithic resolver-to-digital converter 3125 rps maximum tracking rate (10-bit resolution and CLKIN = 10.24 MHz) ±2.5 (+ 1 LSB) arc minutes of angular accuracy (B and D grades) 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 standards 5 V supply with 2.3 V to 5.25 V logic interface −40°C to +125°C temperature rating (C, D, and W grades) AEC-Q100 qualified for automotive applications ASIL B safety assessment certificate available Safety manual available APPLICATIONS DC and ac servo motor control Encoder emulation Electric power steering Electric vehicles Integrated starter generators and alternators Automotive motion sensing and control GENERAL 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 representat...