Single axis MEMS VC accelerometers

January 27, 2017 // By Julien Happich
Low-noise single axis Model 2210 accelerometer modules from Silicon Designs integrate a MEMS VC accelerometer chip with high-drive, low-impedance buffering for reliable, repeatable measurements.

When used with a Silicon Designs mounting block, such as the Model 2330-BLK, the Model 2210 can effectively measure on either one, two, or three axes, allowing for the specification of a single part number for multiple requirements, thereby reducing in-house inventory counts. Offered in ranges from ±2 to ±400 g, the Silicon Designs Model 2210 Series generates two analog voltage outputs which vary in response to applied acceleration. Customers can utilize either single-ended or differential output, the latter of which doubles accelerometer sensitivity over single-ended versions. The sensitive axis of the Model 2210 is perpendicular to the package bottom, with positive acceleration defined as a force pushing on the bottom of that package.  Output scale factor is independent from the supply voltage of +8 to +32V.  At zero acceleration, differential output voltage is nominally 0 VDC; at full scale, ±4 VDC.

Sensing elements of the Model 2210 are packaged within a compact, lightweight, anodized epoxy sealed aluminum housing, occupying a total footprint of just one square inch. Their design features a simple-yet-robust four-wire connection and internal voltage regulator, which minimizes supply voltage variation effects.  Units are relatively insensitive to temperature changes and feature quick, easy self-calibration.

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