The MA820 is an easy-to-use, magnetic, angle encoder designed to replace analogic potentiometers or rotary switches. In contrast to most other MagAlpha parts, the MA8XX series is targeted towards human-machine interface applications rotating at a maximum of 200 rpm. 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.
Magnet shapes and configurations are very flexible. Typically, the MA820 is used with a diametrically magnetized cylinder of 2 - 8mm in diameter.
The MA820 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 configuration parameters, including the reference zero angle position, ABZ pulses per channel, and magnetic field detection threshold settings.
Show moreShow less
Log in to your account
Create New Account
Forgot Password
Log in to continue
myMPSPLUS
A Plus account is required to perform this action.
Log in to your myMPS+ account or create one now.
Don’t have a myMPS+ account yet?
Get early access to new products, datasheets, and free samples.
The EVKT-KNOB kit evaluates the angular sensing and push-button features of the MA820. It is delivered assembled and with a knob and magnet. The sensor is mounted in an end-of-shaft configuration.
It requires the communications kit (EVKT-MACOM) and the Macom App Software (see below) to evaluate MagAlpha functionality and performance with your set-up, such as noise level, refresh rate, power-up time, and magnetic field dependence.
Log in to your account
Create New Account