AS5030 8-bit rotary position sensor with digital angle (interface) and PWM output0 pages

AS5030
8-Bit Programmable High Speed Magnetic Rotary Encoder

1 General Description

2 Key Features
360° contactless angular position encoding

The AS5030 is a contactless magnetic rotary encoder for accurate
angular measurement over a full turn of 360°.
It is a system-on-chip, combining integrated Hall elements, analog
front end and digital signal processing in a single device.

Two digital 8-bit absolute outputs:

- Serial interface
- Pulse width modulated (PWM) output
User programmable zero position

To measure the angle, only a simple two-pole magnet, rotating over
the center of the chip is required.
The absolute angle measurement provides instant indication of the
magnet’s angular position with a resolution of 8 bit = 256 positions
per revolution. This digital data is available as a serial bit stream and
as a PWM signal.

Direct measurement of magnetic field strength allows exact

In addition to the angle information, the strength of the magnetic field
is also available as a 6-bit code.

Wide magnetic field input range: 20 ~ 80mT

Data transmission can be configured for 1-wire (PWM), 2-wires
(CLK, DIO) or 3-wires (CLK, DIO, CS).

Small Pb-free package: TSSOP 16

determination of vertical magnet distance
Serial read-out of multiple interconnected AS5030 devices

using daisy chain mode
Wide temperature range: -40°C to +125°C

A software programmable (OTP) zero position simplifies assembly
as the zero position of the magnet does not need to be mechanically
aligned.

3 Applications
The AS5030 is suitable for Contactless rotary position sensing,
Rotary switches (human machine interface), AC/DC motor position
control, Robotics and Encoder for battery operated equipment.

A Power Down Mode together with fast startup- and measurement
cycles allows for very low average power consumption and makes
the AS5030 also suitable for battery operated equipment.
Figure 1. AS5030 Block Diagram

Sin / Sinn / Cos / Cosn

PWM
Decoder

AS5030
Angle
Sin
Cos

Hall Array
&
Front-end
Amplifier

Tracking
ADC &
Angle
Decoder

DX

Zero
Position

Mag

Absolute
Serial
Interface
( SSI )

DIO
CS
CLK
C2

AGC

AGC
Power Management

www.ams.com/AS5030

PWM

MagRngn
OTP

Revision 2.4

PROG

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