AS5130ATST AMSCO [austriamicrosystems AG], AS5130ATST Datasheet

AS5130ATST

Manufacturer Part Number

AS5130ATST

Description

8 Bit Programmable Magnetic Rotary Encoder with Motion Detection & Multiturn

Manufacturer

AMSCO [austriamicrosystems AG]

Datasheet

1.AS5130ATST.pdf (41 pages)

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A S 5 1 3 0

8 B i t P r o g r a m m a b l e M a g n e t i c R o ta r y E n c o d e r

w i t h M o t i o n D e t e c t i o n & M u l t i t u r n

1 General Description

The AS5130 is a contactless magnetic rotary encoder

for accurate angular measurement over a full turn of

360º. It is a system-on-chip, combining integrated Hall

elements, analog front end and digital signal processing

in a single device. The angle can be measured using

only a simple two-pole magnet rotating over the center

of the chip. The magnet may be placed above or below

the IC. 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. The AS5130 can be operated in pulsed

mode (Vsupply=off), which reduces the average power

consumption significantly. During Vsupply=off, the

measured angle can be stored using an internal storage

achieves very low power consumption during polling of

the rotary position of the magnet. If the position of the

magnet changes, then the motion detection feature

wakes up an external system. The device is capable of

counting the amount of magnet revolutions. The multi

turn counter value is stored in a register and can be read

in addition to the angle information. Furthermore, any

arbitrary position can be set as zero-position. The

system is tolerant to misalignment, air gap variations,

temperature variations and external magnetic fields and

high reliability due to non-contact sensing.

Figure 1. Block Diagram

www.austriamicrosystems.com

Hall Array

Frontend

Amplifier

power management

SINP / SINN / COSP / COSN

Cos

Sin

tracking

decoder

ADC &

Angle

AGC

Revision 1.00

Mag

Angle

AGC

Zero

Pos.

2 Key Features

3 Applications

The AS5130 is an ideal solution for Ignition key position

sensing, Steering wheel position sensing, Transmission

gearbox encoder, Front panel rotary switches and

replacement of Potentiometers.

OTP

- Serial interface

- Pulse width modulated (PWM) output

360º contactless angular position encoding

Two digital 8-bit absolute outputs:

User programmable zero position

High speed: up to 30000 rpm

Failure detection mode for magnet placement moni-

toring and loss of power supply

Wide temperature range: - 40ºC to + 125ºC

Multi Turn counter / Movement detection

Small Pb-free package: SSOP-16 (5,3mm x 6,2mm)

Automotive qualified to AEC-Q100, grade 1

Decoder

Absolute

Interface

Serial

PWM

(SSI)

PWM

DIO

DCLK

CAO

PROG

D a t a S h e e t

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