AS5055

AS5055 12bit rotary encoder Datasheet AS5055 Low power 12 bit magnetic rotary encoder Preliminary datasheet 1 General Description The AS5055 is a single-chip magnetic rotary encoder IC with low voltage and low power features. It includes 4 integrated Hall elements, a high resolution ADC and a smart power management controller. The angle position, alarm bits and magnetic field information are transmitted over a standard 3-wire or 4-wire SPI interface to the host processor. The AS5055 is available in a small QFN 16-pin 4x4x0.85mm package and specified over an operating temperature of -20 to +85°C. Benefits Complete system-on-chip Low power consumption Low operating voltage Easy to use SPI interface Applications Servo motor control Input device for battery operated portable devices Robotics Key Features 12 bit resolution Standard SPI interface, 3 or 4 wire 3.0 to 3.6V core voltage, 1.8 to 3.6V peripheral supply voltage Automatic Wakeup over SPI interface Interrupt output for conversion complete indication Low power mode: < 8mA (avg) @ 620us readout interval < 5mA (avg) @ 1ms readout interval < 500µA (avg) @ 10ms readout interval < 53µA (avg) @ 100ms readout interval Small size QFN-16 4x4x0.85mm 2 Block diagram Hall Sensors Power Management VDD VSS AS5055 ADC Cordic EN_INT/ INT/ SPI interface VDDp Wire MOSI MISO SCK SS/ mode Revision 1.0 www.austriamicrosystems.com Page 1 of 19 AS5055 12bit rotary encoder Datasheet 3 Pinout Figure 1: ...