AS5050 Datasheet, PDF (1/22 Pages) ams AG – Low Power 10-Bit Magnetic Rotary Encoder

Datasheet
AS5050
Low Power 10-Bit Magnetic Rotary Encoder
1 General Description
The AS5050 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 AS5050 is available in a small QFN 16-pin 4x4x0.85mm
package and specified over an operating temperature of -40ºC to
80ºC.
2 Key Features
10-bit resolution
Standard SPI interface, 3 or 4 wire
3.0 to 3.6 V core voltage, 1.8 to 3.6 V peripheral supply voltage
Automatic wakeup over SPI interface
Interrupt output for conversion complete indication
Low power mode:
- < 8mA (avg) @ 620µs readout interval
- < 5mA (avg) @ 1ms readout interval
- < 500µA (avg) @ 10ms readout interval
- < 53µA (avg) @ 100ms readout interval
Small size 16-pin QFN (4x4x0.85mm)
3 Applications
The device is ideal for Servo motor control, Input device for battery
operated portable devices, and Robotics.
Figure 1. AS5050 Block Diagram
Hall Sensors
Power Management
VDD VSS
AS5050
ADC
Cordic
EN_INT/
INT/
SPI Interface
VDDp
Wire MOSI MISO SCK SS/
mode
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