AD2S1200YSTZ

The AD2S1200YSTZ is a complete 12-bit resolution tracking resolver-to-digital converter from Analog Devices. It integrates an on-board programmable sinusoidal oscillator providing sine wave excitation for resolvers. 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 tracks inputs and converts Sin and Cos information into digital angle and velocity outputs. The bandwidth is internally set to 1.7 kHz with an external 8.192 MHz crystal. Key specifications include ±11 arcminutes accuracy, 1000 rps maximum tracking rate at 12-bit resolution, and both parallel and serial 12-bit data ports. The device operates from a single 5V supply and is rated for -40°C to +125°C. It comes in a 44-lead LQFP surface-mount package and provides 4 kV ESD protection. Features include system fault detection, absolute position and velocity outputs, and incremental encoder emulation (1024 pulses/rev). It is compatible with DSP and SPI interfaces.