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ST's three new accelerometers

Posted: 19 Oct 2005 ?? ?Print Version ?Bookmark and Share

Keywords:stmicroelectronics? st? accelerometer? mems accelerometer? sensor?

STMicroelectronics (ST) expanded its portfolio of three-axis accelerometers which, according to the company, embed world-class performance in ever smaller packages. From ultra-compact analog devices to 'smart sensors' with two digital output formats (SPI/I?C), ST's low-power, high-resolution MEMS accelerometers address different system needs and hardware characteristics in a wide range of low-g applications.

"Shrinking dimensions, coupled with increasing performance and embedded flexibility, open up a fascinating range of computer and consumer applications for our MEMS-based sensors," said Hubert Geitner, marketing and business development manager at the MEMS business unit of ST. "ST's silicon expertise and leadership in micro-machining technologies translate into the highest levels of sensitivity and robustness at very competitive prices."

The LIS3LV02DQ device is a 3-axis low-g accelerometer with a standard SPI/I?C digital interface. This product's bandwidth can be flexibly changed with a software command, allowing designers to effectively combine measurements of slow and fast motions, such as tilts and vibrations, in one application. ST added that its novel features, including adjustable bandwidth and direction detection, mark the transition towards the concept of smart sensors.

The new analog-output LIS3L02AL/LIS3L06AL sensors are housed in the slim-and-small plastic LGA (Land Grid Array) packages. According to ST, their 5-by-5-by-1.5mm3 dimensions meet the space constraints of the booming small-form-factor applications, including mini disc drives, mobile phones and other portable electronic devices.

The accelerometers can measure both tilt and acceleration along all three (x, y and z) axes at a very low noise level and minimized power consumption. In addition, the LIS3L0xAL devices offer high temperature stability and tight offset tolerances, and their robust design provides very high immunity to vibration and a shock resistance up to 10,000g.

The new three-axis analog sensor is available in two acceleration rangesthe standard 2g LIS3L02AL for tilt applications, and a dynamically selectable choice of 2g and 6g in the LIS3L06AL, suited for measuring both static and dynamic accelerations, such as vibrations or rollover motions.

Available in production volumes, unit pricing is $4.25 for the LIS3L02AL, $4.65 for the LIS3L06AL, and $5.35 for the LIS3LV02DQ, all for quantities of 10,000 pieces.




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