AS5050

Low Power 10-Bit Magnetic Rotary Encoder

www.austriamicrosystems.com

Revision 1.12

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Datasheet

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.

Figure 1. AS5050 Block Diagram

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.

VDD

VSS

INT/

MOSI

SCK

VDDp

Hall Sensors

AS5050

MISO

SS/

Wire

mode

EN_INT/

ADC

SPI Interface

Power Management

Cordic