Communications

STMicroelectronics’ Newest 3-Axis Accelerometer

27th May 2010
ES Admin
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STMicroelectronics has extended its motion-sensor portfolio with a 3-axis digital-output accelerometer that combines a drastically reduced power consumption – 90% lower than available solutions on the market - with miniature footprint and enhanced functionality.
With operating current consumption as low as 2 microamps, the 3x3x1 mm accelerometer is a perfect fit for motion-sensing features and applications in space- and power-constrained consumer devices, such as mobile phones, remotes and game controllers. The sensor provides extremely accurate output across full-scale ranges of ±2g/±4g/±8g/±16g, boasting excellent stability over time and temperature.

The LIS3DH accelerometer contains a temperature sensor and three analog-to-digital converter channels for easy integration with companion chips, such as gyroscopes. It embeds a host of enhanced features, including click and double-click recognition, 4D/6D orientation detection, and the power-saving sleep-to-wake-up mode. In this mode, the device keeps the read chain active and wakes up when an event occurs, automatically increasing the output data rate.

Other important features include a programmable FIFO (first-in first-out) memory block and two programmable interrupt signals that enable immediate notification of motion detection, click/double-click events, and other conditions.

The latest addition in ST’s MEMS portfolio, the LISH3DH has been designed and produced using the same manufacturing-process technology that ST has already successfully applied to more than 700 million motion sensors sold in the market.

The device is pin-to-pin and software-compatible with all ST accelerometers in the LIS331 family, so customers can easily ‘hot swap’ and protect their investment in application development.

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