- Angular Position Sensors
8-Bit to 12-Bit, Low-Power Angle Sensor with Integrated Wake-Up Angle Detection
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The MA780 is an 8-bit to 12-bit, low-power angle sensor that detects the absolute angular position of a permanent magnet (e.g. a diametrically magnetized cylinder on a rotating shaft). Power-cycling optimizes the sensor for applications requiring low average power. The timing can be controlled via an integrated clock or external controller. Flags are available for detecting a definable amount of angle change.
The MA780 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 on-chip, non-volatile memory (NVM) provides storage for configuration parameters, including the reference zero-angle position, power-cycling parameters, and the filter window affecting the output resolution. The MA780 is available in a QFN-16 (3mmx3mm) package.
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Features & Benefits
- 8-Bit to 12-Bit Resolution Absolute Contactless Angle Encoder
- <0.5μA Current Consumption in Idle Mode
- 10mA Current Consumption in Active Mode
- Angle Detection Interrupt for System Wake Up
- Supports On-Axis and Off-Axis Operation
- SPI Serial Interface
- 3.3V Supply
- -40°C to +125°C Operating Temperature
- Available in a QFN-16 (3mmx3mm) Package
Active Part Numbers:
TBMA780-Q-LT-01A Evaluation Kit Long Evaluation Board for the MA780
The TBMA780-Q-LT-01A is the long test board for the MA780 MagAlpha magnetic position sensor, the world's smallest absolute ICEncoderTM. The sensor is mounted on the edge of the board, and can be used in both side-shaft and end-of-shaft configurations.
It requires the EVKT-MACOM communication kit and the Macom App Software to evaluate MagAlpha functionality and performance with the set-up, such as noise level, refresh rate, start-up time, and magnetic field dependence.
Round Evaluation Board for the MA780