STMicroelectronics has expanded its sensor portfolio with a new automotive-grade 3-axis low-g accelerometer. Combining low power consumption and small footprint with high precision and robust performance, STâ€™s new accelerometer targets a wide range of automotive applications, including vehicle tracking, event recording, abuse monitoring, and dead-reckoning for enhanced navigation capabilities.
™s AIS328DQ senses acceleration along all three axes and converts the motion and tilt information into a high-resolution digital signal that it transmits to a microcontroller through a standard SPI or I2C interface. The accelerometer provides extremely accurate output across user-selectable full-scale ranges of Â±2g/Â±4g/Â±8g, boasting excellent stability over time and temperature.
Robust and resistant to shock and electromagnetic interference, STâ€™s AIS328DQ is qualified to AEC-Q100, a critical stress-test qualification for automotive integrated circuits established by the Automotive Electronics Council (AEC).
With an extended temperature range from -40 to 105Â°C, the sensor can be used inside the cabin or inside modules that have self-heating components, like power stages. An embedded routine can be activated at any time to verify correct functioning of the device.
STâ€™s newest automotive-grade accelerometer has been designed and produced using the same manufacturing-process technology that ST has successfully applied to more than 850 million motion sensors sold in the market.
Samples of STâ€™s AIS328DQ automotive accelerometer are available and volume production is scheduled for Q3 2011. Unit pricing is below $3 for volumes in the range of 100,000 pieces.