AS5261/ AS5262 Adapterboard User manual
www.ams.com
Revision 1.0 / 10/31/12
page 2/10
1. General Description
This document describes the features and operation of the AS5261 / AS5262 Adapterboard.
The AS5261 / AS5262 is a contactless magnetic angle position sensor for accurate angular
measurement over a full turn of 360°. A sub range can be programmed to achieve the best
resolution for the application. It is a system-on-chip, combining integrated Hall elements, analog
front end, digital signal processing and best in class automotive protection features in a single
device.
To measure the angle, only a simple two-pole magnet, rotating over the center of the chip, is
required. 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 0.022° = 16384 positions per revolution. According to this resolution the
adjustment of the application specific mechanical positions are possible. The angular output data
is available over a 12 bit ratiometric analog output.
The AS5261 / AS5262 operates at a supply voltage of 5V and the supply and output pins are
protected against overvoltage up to +20V. In addition the supply pins are protected against
reverse polarity up to
–20V.
The AS5261 / AS5262 is a dual die version, with 2 independend die’s in one package. This part
can be used full redundant with 2 supplies.