Sensors

6-DOF XYZ-Axis MEMs sensor for continuous monitoring

29th May 2020
Alex Lynn

Murata has announced the development of a new single package 6-DOF XYZ-Axis MEMs sensor for safety-critical automotive applications. 

The SCHA600 sensor delivers outstanding performance for ADAS and AD (automated driving) applications, offering centimeter-level accuracy in regard to vehicle dynamics and position, to ensure safe, robust and verified autonomous driving.

The SCHA600 is a single package 6DoF component qualified to the AEC-Q100 standard. It includes advanced self-diagnostic features and is also compliant to ASIL-D level – the highest Automotive Safety Integrity Level. With an Allan variance down to 0.9 °/h at room temperature and gyro RMS noise level below 0.007°/s, the sensor delivers best in class performance for automotive applications in regard to bias stability and noise. The orthogonality of the measurement axis is calibrated at Murata, saving systems integrators time and money on implementing this process step themselves.

The SCHA600 series features extensive failsafe functions and error bits for diagnostics including internal reference signal monitoring, checksum techniques for verifying communication, and signal saturation/over range detection. Its component-level dynamic cross-axis calibration enables better than 0.3° cross axis error over temperature.

The three-axis accelerometer contains a unique diagnostic feature of a continuously operating self-test function to monitor the sensor during measurement. This patented self-test function verifies the proper operation of the entire signal chain from MEMS sensor movement to signal conditioning circuitry for every measurement cycle.

The component is supplied in a SOIC housing body size 18.7x8.5x4.5mm with 32 pins and has an operating temperature range of -40 to +110°C . Samples are available now from Murata.

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