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Two-axis accelerometer suits battery-powered portables

Posted: 10 Jul 2007     Print Version  Bookmark and Share

Keywords:'low-g' linear accelerometers  MEMS sensor  motion-sensing device 


Extending its family of compact 'low-g' linear accelerometers, STMicroelectronics has delivered a new solution that features compact square footprint and low power consumption, making the LIS244AL motion-sensing device well-suited for battery-powered portable applications, such as mobile phones, portable multimedia players or remote controls.

The accelerometer incorporates in a single package both a robust, dual-axis MEMS sensor and a CMOS interface chip that provides two simultaneous, real-time analogue outputs: one for side-to-side (lateral) and one for forward-backward (longitudinal) directions.

LIS244AL provides acceleration values at a very low noise level with minimised power consumption, which is critical in battery-operated portable systems. The accelerometer is housed in a low-cost 4-by-4-by-1.5mm plastic package to fit in different space-constrained applications. The device's compact robust design provides shock survivability up to 10,000g.

ST's new accelerometer offers a full-scale output range of ±2g. The built-in self-test facility allows the user to verify both the mechanical and electrical parts of the device. The accelerometer uses ST's ECOPACK Pb-free technology for RoHS-compliance.

LIS244AL addresses a wide range of applications sensitive to package size and power consumption such as data-integrity protection, user interface, anti-theft system, remote device control, intelligent motion-based power management; sport and health monitoring devices.

ST's LIS244AL is now in volume production. Unit pricing is Rs.93.99 ($2.30) for quantities of 10,000 pieces.

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