Monolithic Power Systems (MPS) MA600 Magnetic Angle Sensors

Monolithic Power Systems (MPS) MA600 Magnetic Angle Sensors are precision, high-bandwidth magnetic angle sensors that detect the absolute angular position of a permanent magnet, generally a diametrically magnetized cylinder on a rotating shaft. Integrated with a precision tunnel magnetoresistance (TMR) sensor, the MPS MA600 delivers high bandwidth and high accuracy (INL), making it ideal for position control and robotics.

The MPS MA600 features various magnetic field strengths and spatial configurations. End-of-shaft (on-axis) and side-shaft (off-axis) mounting configurations are supported. On-chip non-volatile memory (NVM) supplies storage for configuration parameters, including the reference zero-angle position and ABZ/UVW/PWM settings.

The MA600 is factory-calibrated to achieve an error (INL) below 0.6° across its operating temperature range. Furthermore, final system calibration is available through a 32-point user configurable correction table. After user calibration, the resulting error (INL) can be smaller than 0.1°. The MA600 can be communicated via the serial peripheral interface (SPI) and synchronous serial interface (SSI).

The MA600 is housed in a small QFN-16 (3mm x 3mm) package.

Features

<0.6° error (INL)
<0.1° error (INL) after user calibration with on-chip 32-point lookup table
Configurable 12-bit to 15-bit absolute angle encoder
High bandwidth (e.g. 12kHz at 12.5-bit resolution)
No latency
Wide 10mT to >100mT magnetic field range
Serial Peripheral Interface (SPI) for digital angle readout and chip configuration
Synchronous Serial Interface (SSI) for digital angle readout

Incremental ABZ quadrature encoder interface with configurable pulses per turn (1 to 4096)
Incremental UVW encoder output
Pulse-Width Modulation (PWM) absolute output
Multi-turn or speed output option
3.3V supply
7.5mA quiescent current (I_AVDD + I_DVDD)
-40°C to +125°C operating temperature
Available in a small QFN-16 (3mm x 3mm) package