A third degree of freedom is added to a 4-mm square analog-output accelerometer family
Dec 26, 2007 1:17 PM
STMicroelectronics, a supplier of MEMS (Micro-Electro-Mechanical System) devices, has extended its family of ultra-compact 'low-g' linear accelerometers with a three-axis analog-output sensor. Well suited for battery-powered and space-constrained portable devices, the LIS344AL is a MEMS solution in an ultra- compact, square footprint operating with low power consumption.
The LIS344AL addresses a wide range of applications including data-integrity protection, user interface, anti-theft system, remote device control and intelligent motion-based power management.
The single-package approach protects the three-axis MEMS sensor and a CMOS interface chip provides tilt and acceleration information, independent of the device's orientation, due to the three-axis sensing capabilities.
The LIS344AL measures acceleration values at a very low noise level with minimal power consumption, which is especially critical in battery-operated portable systems. The new accelerometer is housed in an inexpensive, 4 mm x 4 mm x 1.5 mm high, plastic package to fit in a variety of space-constrained applications and its ultra-compact, robust design provides shock survivability up to 10,000 g.
ST's new accelerometer offers a full-scale output range of ±3.5 g. A built-in self-test facility enables the user to verify the performance of the mechanical and electrical components of the device.
The accelerometer uses a lead-free technology for RoHS-compliance (the EU's Restriction on Use of Hazardous Substances Directive).
ST's LIS344AL is in volume production now. Unit pricing is $1.40 in large volumes.
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