MA820 8-Bit Contactless Angle Encoder with ABZ Output and Push Button Function

Product Detail

The MagAlpha MA820 is a simple-to-use magnetic angle encoder designed to replace analogic potentiometers or rotary switches. The sensor detects the absolute angular position of a permanent magnet attached to a rotating shaft and outputs incremental ABZ encoder data. The number of pulses per-channel for each A or B output is programmable from 1 to 64 via an SPI interface. The user has wide flexibility in terms of magnet shapes and configurations. Typically, the MA820 is used with a diametrically magnetized cylinder of 3mm to 8 mm in diameter. The MA820 features programmable magnetic field strength thresholds which allow implementation of a push or pull button function. These are output as two logic signals. On-chip non-volatile memory provides storage for configuration parameters including the reference zero angle position, the ABZ interface pulses per channel and the magnetic field detection threshold settings.