Contactless Angle Sensor

MA732 - 14-Bit, Digital, Contactless Angle Sensor with ABZ Incremental & PWM Outputs MA734 - 8-Bit to 12.5-Bit, 3μs Low-Latency Contactless Angle Sensor

The MA732 detects the absolute angular position of a permanent magnet, typically a diametrically magnetized cylinder on a rotating shaft. Fast data acquisition and processing provide accurate angle measurements at speeds from 0 to 60,000 rpm. The digital filtering is adjustable to optimize control loop performance when used in servo applications.

The MA732 supports a wide range of magnetic field strengths and spatial configurations. Both end-of-shaft and off-axis (side-shaft mounting) configurations are supported.

The MA732 features magnetic field strength detection with programmable thresholds to allow sensing of the magnet position relative to the sensor for creation of functions, such as the sensing of axial movements or for diagnostics.

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

Features

• 9-Bit to 14-Bit Resolution Absolute Angle Encoder
• Contactless Sensing for Long Life
• SPI Serial Interface for Digital Angle Readout and Chip Configuration
• Incremental 12-Bit ABZ Quadrature Encoder Interface with Programmable Pulses Per Turn from 1 - 1024
• PWM Output 14-Bit
• Programmable Magnetic Field Strength Detection for Diagnostic Checks
• 3.3V, 12mA Supply
• -40°C to +125°C Operating Temperature
• Available in a QFN-16 (3mmx3mm) Package

Application

Physical AI