Second generation MEMS accelerometer and gyroscope suits automotive and industrial applications

Murata has introduced the SCC2000 series of combined accelerometer and gyroscope sensor devices aimed at use in tough environments such as those encountered in automotive and industrial applications. The series has best in class temperature dependency, shock sensitivity and bias stability characteristics and consists of a low-g 3-axis accelerometer with two angular rate sensor options of either X or Z-axis detection, together with a 32-bit digital SPI interface.

The sensor has a software selectable 10 or 60 Hz low pass filter that can be configured via SPI. Gyro range is +/- 125 degrees per second with sensitivity of 50 LSB per degree per second. Typical accelerometer offset temperature drift is +/- 6 mg for the 2g sensor and +/-12mg for the 6g version. Gyroscope offset temperature drift is typically in the range +/-0.5°/s for the 125°/s X & Z -axis product versions. The Gyroscope has a typical offset short-term bias stability of 1°/h for the 125°/s X-axis device and 2°/h for the 125°/s Z-axis product. A combined sensor with a gyro having a range of up to 300 degrees per second is also available on customer request.

Commenting Jari Nieminen, product manager for the SCC2000 series said, “The SCC2000 series product family provides a complete product platform for acceleration and angular rate detection in all three sensing axis directions. With the newly introduced Z axis gyroscope version designers now can implement a 6DOF (degrees of freedom) sensor solution on one application PCB.”

The SCC2000 devices are available in a 24-pin premolded plastic RoHS compliant SOIC housing suitable for SMD mounting measuring 15.00 x 12.10 x 4.35 mm. The combined sensor is compliant to the internationally recognized ISO26262 automotive safety standard and the AEC-Q100 stress test qualification requirements for electronic components used in automotive applications. As a platform it can be used in both active and passive safety designs in automotive applications such as hill start assistance (HSA), active steering, and adaptive cruise control for advanced driver assistance systems (ADAS). With a robust construction and the sensor’s high performance the SCC2000 series is also suitable for the most demanding environments such as agricultural, construction and other heavy machinery applications.


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