10-Bit, Digital, Contactless Angle Sensor with ABZ Incremental & PWM Outputs
  • 1
    US$ 0.00 /unit


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The MA704 detects the absolute angular position of a permanent magnet, typically a diametrically magnetized cylinder on a rotating shaft. The MA704 is particularly suited to track highly dynamic movements with speeds up to 60’000 rpm.

The MA704 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 MA704 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.


  • 10-Bit Resolution Absolute Angle Encoder 
  • Contactless Sensing for Long Life 
  • SPI Serial Interface for Digital Angle Readout and Chip Configuration 
  • Incremental 8-Bit ABZ Quadrature Encoder Interface with Programmable Pulses Per Turn from 1-64
  • PWM Output 10-Bit
  • Programmable Magnetic Field Strength Detection for Diagnostic Checks
  • 3.3V, 12 mA Supply
  • -40°C to +125°C Operating Temperature 
  • Available in a QFN-16 (3mmx3mm) Package

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


  • PackageQFN-16 (3x3)
  • 最小输入电压3
  • Vin (max) (V)3.6
  • PWM Frequency (Hz)920
  • fcutoff (Hz)2970
  • Latency (µs)8
  • Isupply (mA)11.7
  • tstart-up (ms)1.1
  • GradeCatalog
  • Refresh Rate (kHz)1000
  • Output FormatABZ, PWM, SPI, SSI
  • Resolution (bits)10
  • Sensor PositionEnd-of-Shaft, Side-Shaft
  • ABZ Pulses per Turn per Channel1 to 64
  • Temp Range (°C)-40 to +125
  • Magnetic Field DetectionYes
  • Magnetic Field (min) (mT)30

MagAlpha 通信套件

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