DESCRIPTION

The MA800 is an easy-to-use, magnetic, angle encoder with a digital output designed to replace analogic potentiometers or rotary switches. The MA800 is designed for slow operation such as human-machine interface, manual controls, etc. where the rotating speed remains below 200 rpm. The sensor detects the absolute angular position of a permanent magnet attached to a rotating shaft.

The magnet shapes and configurations are very flexible. Typically, the MA800 is used with a diametrically magnetized cylinder of 2 - 8mm in diameter.

The MA800 features programmable magnetic field strength thresholds, which allow for the implementation of a push or pull button function. These are output as two logic signals.

On-chip non-volatile memory provides storage for the configuration parameters, including the reference zero angle position and magnetic field detection threshold settings.

FEATURES

 8-Bit Resolution Absolute Angle Encoder

 Contactless Sensing for Long Life with No Wear

 SPI and SSI Serial Interface

 Programmable Magnetic Field Strength Detection for Push/Pull Button Detection

 3.3V, 12mA Supply

 -40 to +125°C Operating Temperature

 Available in a QFN-16 (3mmx3mm) Package

APPLICATIONS

 Rotary Knob Control Interfaces

 Manual Controls

 Encoders

 Automotive

 White Goods