 |
||||
|
 |
 |
||||
 |
||||
|
||||
|
||||
|
||||
|
||||
You can now follow us on Blogger, Twitter, WordPress or Live Journal by clicking on the logos below.
|
||||
|
||||
 |
||||
STMicroelectronics announces three-axis MEMS-based accelerometer with serial digital output
 |
STMicroelectronics has announced that the company is sampling a MEMS-based three-axis accelerometer device that provides, for the first time, both three-axis sensing in a single package and a digital output. |
Called LIS3L02D, the new device is designed primarily for handheld terminals where it can be used to implement new motion-based user interfaces based on hand movements, allowing one-handed operation without styli, thumb keyboards or other input devices. Other applications include toys, industrial equipment, robotics, automotive systems and appliances where sensing of movement, acceleration or inclination is needed.
The LIS3L02D includes a single-chip MEMS sensor chip plus a calibrated interface chip that senses changes in capacitance in the sensor and translates them into SPI or I2C serial digital outputs. Compared to assemblies of single-axis sensors the device is simpler, less expensive and more precise, cutting manufacturing costs.
An earlier version of the LIS3L02D had been selected as a finalist in the components category in EDN Magazine's 2003 Innovation of the Year Award. This program honours outstanding electronic products across the broad spectrum of original equipment manufacturing and test products.
Accelerometers based on silicon-micromachined MEMS technology exploit the changes in capacitance caused by the relative movement of moving and fixed structures created in the silicon, using wafer-processing techniques. STMicroelectronics offers a broad range of MEMS-based sensor devices, including linear sensors for one, two and three axis, plus rotational accelerometers. These devices are assembled with an interface chip that generates analog, PWM or serial digital outputs, factory-trimmed to ensure close tolerance without production line adjustment of the end product.
The LIS3L02D operates on a 2.7 to 3.6V supply voltage. The device has an equivalent noise acceleration of better than 500 millionths of one 'g'. During transport and service it can withstand accelerations up to 3000 g without damage, making it sufficiently shock resistant for mobile phone applications.
For more information on the full range of STMicroelectronics products available from Anglia please call +44 (0)1945 474747 or email info@anglia.com
