MA302

Active
12-Bit, Digital, Contactless Angle Sensor with ABZ & UVW Incremental Outputs


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Product Description

The MA302 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 measurement at speeds from 0 to 60,000 rpm.

The MA302 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 MA302 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 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, UVW pole pair emulation settings, and magnetic field detection thresholds. 

Product Features

  • 12-Bit Resolution Absolute Angle Encoder
  • Contactless Sensing for Long Life
  • SPI Serial Interface for Digital Angle Readout and Chip Configuration
  • Incremental 10-Bit ABZ Quadrature Encoder Interface with Programmable Pulses Per Turn from 1 to 256
  • UVW Interface with 1 to 8 Pole Pair Emulation
  • Programmable Magnetic Field Strength Detection for Diagnostic Checks
  • 3.3V, 12mA Supply
  • -40°C to +125°C Operating Temperature

Additional Resources

Sensor Brochure

TBMA User Guide

Magnetic Design Tool

MagAlpha Arduino Library

MagAlpha Sample Code

AppNote: Selecting the Right Magnet

AppNote: Sense BLDC Rotor Position

AppNote: Replace Optical Encoders

Parametrics

  • PackageQFN-16 (3x3)
  • Vin (min) (V)3
  • Vin (max) (V)3.6
  • fcutoff (Hz)390
  • Latency (µs)8
  • Isupply (mA)11.7
  • tstart-up (ms)12
  • GradeCatalog
  • Refresh Rate (kHz)1000
  • Output FormatABZ, SPI, UVW
  • Resolution (bits)12
  • Sensor PositionEnd-of-Shaft, Side-Shaft
  • ABZ Pulses per Turn per Channel1 to 256
  • Temp Range (°C)-40 to +125
  • Magnetic Field (min) (mT)30

Long Eval Board for MA302

The TBMA302-Q-LT-01A is the long test board for the MagAlpha magnetic position sensor MA302. The sensor is mounted on the edge of the board and can therefore be used in both side-shaft and end-of-shaft configurations.

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.

In addition to this long test board, there is a round format version (RD) where the sensor is mounted in the center of the board for end-of-shaft configurations.

$10.00 + tax



Round Eval Board for MA302

The TBMA302-Q-RD-01A is the round test board for the MagAlpha magnetic position sensor MA302. This configuration is used for end shaft sensing.

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.

In addition to this round test board there is a long format version (LT) where the sensor is mounted on the edge of the board and can therefore be used in both side-shaft and end-of-shaft configurations.

$10.00 + tax



Windows Desktop Application + Drivers for the MagAlpha Communication Kit.

Windows Desktop Application + Drivers for the MagAlpha Communication Kit. Offers a graphical visualization of the angle reading and a quick and easy way to configure the sensor. Requires MagAlpha Communication Kit and a sensor front-end board.

Hardware Requirements

MagAlpha Communication Kit (EVKT-MACOM)

Sensor Board (TBMAxxx-Q-RD, TBMAxxx-Q-LT or EVKTxxx-KNOB)

User Instructions

MACOM Communication Kit User Guide



MagAlpha Communication Kit to Connect to Sensor Test Boards (TMBA) and Rotary Knob Kit, Requires Macom App Software 

The EVKT-MACOM is a communication kit for the MagAlpha magnetic position sensor family test boards (TBMA) and Rotary Knob kit (EVKT-KNOB). The kit contains a microcontroller motherboard, a collection of daughter boards adapted to different sensor boards, and the related cables.

This communicaiton kit requires Macom App Software and a sensor test board to evaluate MagAlpha functionality and performance with your set-up, such as noise level, refresh rate, power-up time, and magnetic field dependence.

$75.00 + tax


Reference Materials