GENERAL DESCRIPTION

The AD2S1200 is a complete 12-bit resolution tracking resolverto-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 a precision time reference. This clock is internally divided to generate a 4.096 MHz clock to drive all the peripherals.

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)

−40°C to +125°C temperature rating

44-lead LQFP package

4 kV ESD protection