We may soon see some motion sensing add-ons on portable devices as STMicroelectronics has expanded its portfolio of ultra-compact, high-performance MEMS (Micro Electro-Mechanical System) sensors with a 3-axis accelerometer with absolute analog output. ST’s LIS352AX is a perfect fit for motion-sensing applications in space- and cost-constrained battery-operated devices.

ST’s newest 3-axis motion sensor has been designed to provide acceleration values in the form of absolute analog outputs. Taking advantage of internal regulated voltage, the measurements are insensitive to the typical variations in power-supply voltage that occur in battery-operated devices, such as mobile phones and other portable devices.

Benefits of this unique approach are twofold: equipment manufacturers can save space and cost by connecting the sensor directly to the battery without a separate voltage regulator; they also gain design flexibility, since the sensor is compatible with any power supply voltage used in a given application.

The LIS352AX boasts high stability over a wide temperature range for both zero-g offset and sensitivity. With the offset drift (temperature variation) around plus or minus 0.3mg/degree Celsius, ST’s new sensor is one of the most stable devices in the market, eliminating the need for further temperature compensation in the application.

Samples of ST’s LIS352AX are available now, with volume production starting in June 2009. Unit pricing is $1.3 for quantities over 10,000 pieces a year.

(Source) Press

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