MA735 MagAlpha 9-Bit to 13-Bit Angle Sensor

MPS' MA735 digital, contactless sensor features ABZ and PWM outputs

Image of MPS' MA735 MagAlpha 9-Bit to 13-Bit Angle SensorMPS' MA735 detects the absolute angular position of a permanent magnet, typically a diametrically magnetized cylinder on a rotating shaft. Its ultra-small UTQFN package makes it an ideal solution for space-constrained applications. Fast data acquisition and processing provide accurate angle measurements at speeds between 0 rpm and 60,000 rpm. The digital filtering is adjustable to optimize control loop performance when used in servo applications.

The MA735 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 MA735 features magnetic field strength detection with configurable thresholds to allow sensing of the magnet position relative to the sensor to create functions, such as sensing axial movements or diagnostics.

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

The MA735 is available in a UTQFN-14 (2 mm x 2 mm) package.

Features
  • 9-bit to 13-bit, ±3σ resolution absolute angle encoder
  • Contactless sensing for long life
  • Serial peripheral interface (SPI) for digital angle readout and chip configuration
  • Incremental 12-bit ABZ quadrature encoder interface with configurable pulses per turn from 1 to 1024
  • 14-bit pulse-width modulation (PWM) output
  • Configurable magnetic field strength detection for diagnostics
  • 3.3 V, 12 mA supply
  • Operating temperature range: -40°C to +125°C
  • Available in an ultra-small UTQFN-14 (2 mm x 2 mm) package

ICs

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
9-BIT TO 13-BIT, DIGITAL, CONTACMA735GGU-P9-BIT TO 13-BIT, DIGITAL, CONTAC290 - Immediate$5.95View Details
9-BIT TO 13-BIT, DIGITAL, CONTACMA735GGU-Z9-BIT TO 13-BIT, DIGITAL, CONTAC0 - Immediate$5.51View Details
Published: 2024-02-23