MEMs Accelerometer Senses Vehicle Motion And Tilt

Geneva, Switzerland: The AIS328DQ automotive-grade, 3-axis, low-g accelerometer, which senses acceleration along axes, converts motion and tilt information into a high-resolution digital signal that’s transmitted to a microcontroller through a standard SPI or I2C interface. Developed by STMicroelectronics, the device targets a range of automotive applications, including vehicle tracking, event recording, abuse monitoring, and dead-reckoning for enhanced navigation capabilities.

The accelerometer provides accurate output across user-selectable full-scale ranges of ±2g/±4g/±8g, and is resistant to shock and electromagnetic interference. It’s qualified to AEC-Q100, a critical stress-test qualification for automotive integrated circuits established by the Automotive Electronics Council (AEC).

With its extended temperature range from -40 to 105°C, the sensor can be used inside the cabin or inside modules that have self-heating components, such as power stages. An embedded routine can be activated at any time to verify correct functioning of the device.

Samples of the AIS328DQ automotive accelerometer are available; volume production is scheduled for Q3 2011. Unit pricing is below $3 for 100,000-piece volumes.

STMicroelectronics

TAGS: Automotive
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