Analogue, Mixed Signal, LSI


Low-latency contactless angle sensor

25 August 2021 Analogue, Mixed Signal, LSI

The MA734 is a MagAlpha digital angle sensor that detects the absolute angular position of a permanent magnet (typically a diametrically magnetised cylinder on a rotating shaft). Fast data acquisition and processing provide accurate angle measurements, from static angle measurements to high-speed rotation. The digital filtering is adjustable to optimise control loop performance when used in servo motor applications.

This sensor, which comes from Monolithic Power Systems, supports a wide range of magnetic field strengths and spatial configurations. Both end-of-shaft and side-shaft (off-axis mounting) configurations are supported. The MA734 detects the strength of the magnetic field and includes configurable thresholds that can be used for push-button human-machine interface (HMI) applications, or for diagnostic purposes.

On-chip, non-volatile memory (NVM) provides storage for configuration parameters such as the reference zero-angle and magnetic field detection thresholds. It is also possible to configure the MA734 with volatile registers without accessing the NVM.

The MA734 is available in a QFN-16 (3 x 3 mm) package.

For more information contact NuVision Electronics, +27 11 608 0144, gdeklerk@nuvisionelec.co.za, www.nuvisionelec.com


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