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MXD7202ML

Low Cost, Low Noise +/- 2g Dual Axis Accelerometer with Digital Output

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BR817212 13.77

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Low cost, Resolution better than 1 milli-g Dual axis accelerometer fabricated on a monolithic CMOS IC On chip mixed signal processing No moving parts; No loose particle issues >50,000 g shock survival rating 5mm X 5mm X 2mm LCC package 2.7V to 5.25V single supply continuous operation Compensated for Sensitivity over temperature Ultra low initial Zero-g Offset No adjustment needed outside. Click here for the Summary of Memsic Products.

The MXD7202ML is a low cost, dual axis accelerometer fabricated on a standard, submicron CMOS process. It is a complete sensing system with on-chip mixed signal processing.

The MXD7202ML measures acceleration with a full-scale range of +/-2g and a sensitivity of 12.5%/g @5V. It can measure both dynamic acceleration (e.g. vibration) and static acceleration (e.g. gravity).

The MXD7202ML 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 greater than 50,000 g, leading to significantly lower failure rate and lower loss due to handling during assembly and at customer field application.

The MXD7202ML provides two digital outputs that are set to 50% duty cycle at zero g acceleration. The outputs are digital with duty cycles (ratio of pulse width to period) that are proportional to acceleration. The duty cycle outputs can be directly interfaced to a microprocessor.

The typical noise floor is 0.3 mg/ allowing signals below 1 milli-g to be resolved at 1 Hz bandwidth. The MXD7202ML is packaged in a hermetically sealed LCC surface mount package (5 mm x 5 mm x 2 mm height) and is operational over a -40C to +85C (ML) temperature range. Click here for datasheet.

 

 

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Last modified: April 04, 2004