Monolithic Power Systems (MPS) MA735 Contactless Angle Sensors

Monolithic Power Systems (MPS) MA735 Contactless Angle Sensors detect the absolute angular position of a permanent magnet, typically a diametrically magnetized cylinder on rotating shafts. These sensors incorporate fast data acquisition and processing to provide accurate angle measurements at speeds between 0rpm and 60,000rpm. The MA735 digital angle sensors support a wide range of magnetic field strengths and spatial configurations, including end-of-shaft and off-axis (side-shaft mounting) configurations as well. The digital filtering is adjustable to optimize control loop performance when used in servo applications. Additionally, these angle sensors are used in applications such as automotive angle sensors, robotics, high-resolution angle encoders, and general-purpose angle measurements.

Features

  • 9-bit to 13-bit, ±3σ 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 configurable pulses per turn from 1 to 1024
  • 14-bit Pulse-Width Modulation (PWM) output
  • Configurable magnetic field strength detection for diagnostics
  • 3.3V, 12mA supply
  • -40°C to 125°C operating temperature range
  • Available in an ultra-small UTQFN-14 (2mm x 2mm) package

Applications

  • General-purpose angle measurements
  • High-resolution angle encoders
  • Automotive angle sensing
  • Robotics

Typical Application Circuit

Application Circuit Diagram - Monolithic Power Systems (MPS) MA735 Contactless Angle Sensors

Functional Block Diagram

Block Diagram - Monolithic Power Systems (MPS) MA735 Contactless Angle Sensors

Monolithic Power Systems (MPS) MA735 Contactless Angle Sensors