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Increase Sensor Performance with 14-Bit Capacitive Sensor Conditioning IC

October 11, 2011 By Randy Frank

Designed for low-power operation, ZMDI’s ZSSC3123 complements the small size and lower power consumption capabilities of capacitive sensors. The chip delivers 14-bit resolution and 0.25 % accuracy over a wide range of sensor capacitances and temperatures. Operating power consumption is 60 µA with a sleep mode to lower to less than 1µA.

The IC has a digital technique to correct both first-order and third-order nonlinearity errors that are difficult to correct with a pure analog signal path. “Third-order correction is especially useful in humidity and pressure applications, but it can correct for sensor imperfections in almost any situation,” explains Steve Ramdin, product manager at ZMDI.

For more information about the ZMDI ZSSC3123 signal conditioning IC, click here.

Filed Under: Featured Tagged With: capacative, signal conditioning IC, ZMDI

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