Summary of MA782 IS A LOW POWER ANGLE SENSOR WITH SPI OUTPUT
The MPS MA782 is a compact, 12-bit digital low-power angle sensor featuring the world's smallest absolute ICEncoder™ technology. It detects permanent magnet angular position with power cycling capabilities and supports various magnetic field strengths and mounting configurations. Key benefits include ultra-low current consumption, programmable thresholds for diagnostics, on-chip non-volatile memory, and an SPI interface, all housed in a tiny QFN-14 package.
Parts used in the MA782 Project:
- MPS MA782 Sensor
- Diametrically magnetized cylinder
- Rotating shaft
- SPI serial interface
- On-chip clock or external controller
- Non-volatile memory
- QFN-14 (2mmx2mm) package
MPS MA782 is a 12-Bit, digital low power angle sensor with SPI output – the world’s smallest absolute ICEncoder™.
The MA782 is the world’s smallest absolute ICEncoder™ which detects the absolute angular position of a permanent magnet (typically a diametrically magnetized cylinder on a rotating shaft). With its power cycling ability, the sensor is suitable for applications requiring low average power. The timing can be controlled by an on-chip clock or by an external controller. Flags are available for detecting a definable amount of angle change.
The MA782 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 MA782 features magnetic field strength detection with programmable thresholds to allow the sensing of the magnet position relative to the sensor for the 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, the power cycling parameters, the filter window affecting the output resolution and magnetic field detection thresholds.
Features And Benefits
- 8 Bit to 12 Bit resolution absolute contactless angle encoder
- 1µA current consumption in idle mode
- 10mA current consumption in active mode
- Internal or external power cycling control
- Warning on change flags
- SPI serial interface for digital angle readout and chip configuration
- Magnetic field strength alarm
- 3.3V supply
- -40°C to +125°C operating temperature
- Available in a QFN-14 (2mmx2mm) package
Read more: MA782 IS A LOW POWER ANGLE SENSOR WITH SPI OUTPUT
- What is the primary function of the MA782?
The MA782 detects the absolute angular position of a permanent magnet. - How does the MA782 achieve low average power?
It features power cycling ability controlled by an on-chip clock or external controller. - Can the MA782 detect axial movements?
Yes, it uses magnetic field strength detection with programmable thresholds to sense axial movements. - What types of mounting configurations are supported?
Both end-of-shaft and off-axis side-shaft mounting configurations are supported. - Where are configuration parameters stored?
Configuration parameters are stored in on-chip non-volatile memory. - What is the supply voltage requirement?
The device requires a 3.3V supply. - What is the operating temperature range?
The operating temperature range is -40°C to +125°C. - What resolution options does the sensor offer?
The sensor offers 8 Bit to 12 Bit resolution for absolute contactless angle encoding. - How is the idle mode current consumption characterized?
The current consumption in idle mode is 1µA.
