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Bosch positions latest MEMS sensors for CE

Posted: 24 Sep 2008 ?? ?Print Version ?Bookmark and Share

Keywords:MEMS sensor? mobile consumer? consumer electronics?


Bosch Sensortec will be demonstrating its newest MEMS pressure and acceleration sensors for mobile consumer goods at CEATEC in Tokyo from Sept. 30 to Oct. 4. There will be live presentations every hour to demonstrate to the public the high applicability of the components.

Bosch has already produced more than 800 million sensors for physical inputs, such as pressure, acceleration, rotational speed and temperature. With its new products, Bosch Sensortec specifically addresses the demands of the consumer electronics markets in regards to technological, economical, environmental and also logistical needs. All sensors are ready to install, calibrated, and can be manufactured, even in extremely large order quantities, at consistently high quality levels and within the prescribed time limit. The sensors fulfill all requirements of the European RoHS Directive. By the end of the year, Bosch Sensortec will manufacture them halogen-free as a voluntary environmental protection measure.

One of the products that will be exhibited is what Bosch Sensortec claims as the smallest digital barometric pressure sensor in the world for consumer electronics, with housing dimensions of only 5mm x 5mm x 1.2mm. The BMP085, offering 25cm resolution and requiring a minimal 3?A of operating current, can be installed as an altimeter, for example in a mobile phones with navigational functions, in order to ensure highly accurate navigation through superimposed levels independent of GPS, e.g. in large train stations or shopping centers.

Other exhibits include the new analog triaxial acceleration sensors from the BMA14X series: electrically identical in structure, these sensors are available in 0.9mm ultraflat, miniature LGA packages, either with 12 pins and a 3mm edge length (BMA140), or with 16 pins and a 4mm edge length (BMA145). Both sensors detect inclination, motion, shock and vibration within a measuring range of 4g; the overload range extends up to 10,000g.

The digital, triaxial acceleration sensor BMA020 is just as small as the BMA140 analog model. The BMA020 operates external evaluation circuits with a high measurement resolution of 10 bits using the integrated SPI und I?C serial interfaces. This sensor's measurement range can be programmed based on need to values ranging from 2g to 8g. The BMA020 is pin-compatible with its brother, the BMA150, which targets more precise applications in which a zero g offset, for example, is just as important as having a temperature sensor with a measurement range from -30 to 97.5 C integrated into the acceleration sensor.

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