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Low Cost Low Noise Low Offset Drift +/-1 g Dual Axis Accelerometer with Digital Output.


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BR852021 16.53

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Resolution better than 1 milli-g Dual axis accelerometer fabricated on a monolithic CMOS IC On chip mixed mode signal processing No moving parts 50,000 g shock survival rating 17 Hz bandwidth expandable to >160 Hz 3.0V to 5.25V single supply continuous operation Continuous self test Independent axis programmability (special order) Compensated for Sensitivity over temperature Ultra low initial Zero-g Offset and offset temperature drift. Click here for the Summary of Memsic Products.

The MXD2020E/F is an ultra low noise and low cost, low offset drift dual axis accelerometer built on a standard, submicron CMOS process. The MXD2020E measures acceleration with a full-scale range of 1 g. (The MEMSIC accelerometer product line extends from 1 g to 200 g with custom versions available above 10 g.) It can measure both dynamic acceleration (e.g., vibration) and static acceleration (e.g., gravity). The MXD2020E/F design is based on heat convection and requires no solid proof mass. This eliminates stiction and particle problems associated with competitive devices and provides shock survival up to 50,000 g, leading to significantly lower failure rates and lower losses due to handling during assembly.

The MXD2020E/F provides a digital output. The outputs are digital signals with duty cycles (ratio of pulse width to period) that are proportional to acceleration. The duty cycles outputs can be directly interfaced to a micro-processor.

The typical noise floor is 0.2mg / allowing signals below 1 milli-g to be resolved at 1 Hz bandwidth. The MXD2020E/F is available in a low profile LCC surface mount package (5mm x 5mm x 2mm height). It is hermetically sealed and operational over a -40C to +105C temperature range.

Due to the standard CMOS structure of the MXD2020E, additional circuitry can easily be incorporated into custom versions for high volume applications. Contact the factory for more information. Click here for datasheet.



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Last modified: April 04, 2004