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

  • 封装QFN-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 DetectionYes
  • Magnetic Field (Min) (mT)30

Evaluation Kit

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Kit details

The TBMA is a test board for the MagAlpha magnetic position sensor family. The TBMA allows users to run and test the MagAlpha sensor quickly. TBMA boards exist in two different formats: round (RD) and long (LT). In the RD format, the sensor is mounted in an end-of-shaft configuration. In the LT format, the sensor is mounted on the edge of the board and can therefore be used in both side-shaft and end-of-shaft configurations.

The TBMA is compatible with the Macom kit, offering seamless connection and operation of the MagAlpha and allowing users to evaluate MagAlpha functionalities and performances with their own set-up.

Contrary to the EVMA, the TBMA only includes the assembled board with the sensor and decoupling capacitors. It does not include connectors.

US$ 10.00 + tax


Evaluation Kit

GET THIS KIT

Kit details

The TBMA is a test board for the MagAlpha magnetic position sensor family. The TBMA allows users to run and test the MagAlpha sensor quickly. TBMA boards exist in two different formats: round (RD) and long (LT). In the RD format, the sensor is mounted in an end-of-shaft configuration. In the LT format, the sensor is mounted on the edge of the board and can therefore be used in both side-shaft and end-of-shaft configurations.

The TBMA is compatible with the Macom kit, offering seamless connection and operation of the MagAlpha and allowing users to evaluate MagAlpha functionalities and performances with their own set-up.

Contrary to the EVMA, the TBMA only includes the assembled board with the sensor and decoupling capacitors. It does not include connectors.

US$ 10.00 + tax


Evaluation Kit

GET THIS KIT

Kit details

The EVKT-KNOB is an evaluation kit for the MagAlpha magnetic position sensor family. The EVKT-KNOB allows users to run and test the MagAlpha sensor quickly. It is delivered assembled with a knob and magnet. The sensor is mounted in an end-of-shaft configuration.

The EVKT-KNOB is compatible with the MACOM kit, offering seamless connection and operation of the MagAlpha and allowing users to evaluate MagAlpha functionalities and performances, such as noise level, refresh rate, power-up time, magnetic field dependence, and so on.

US$ 50.00 + tax


Evaluation Kit

GET THIS KIT

Kit details

EVKT-MACOM是 MagAlpha磁位置传感器系列的通信工具。EVKT-MACOM可以与 MagAlpha测试板(TBMA)和评估套件(EVKT-KNOB)无缝连接和操作。该套件包含一个微控制器主板、使用相关电缆可适配不同的传感器子板。

US$ 75.00 + tax


Reference Materials