Digital cancellation of noise and offset for capacitive sensors

A digital noise and offset cancellation technique for use with charge-redistribution capacitance sense techniques is presented. It is insensitive to parasitic capacitances, and can cancel the effects of offsets, low-frequency noise sources, and sampled kT/C noise of the MOS switch used in the topolo...

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Veröffentlicht in:	IEEE transactions on instrumentation and measurement 1993-10, Vol.42 (5), p.939-942
Hauptverfasser:	Kung, J.T., Mills, R.N., Hae-Seung Lee
Format:	Artikel
Sprache:	eng
Schlagworte:	Air gaps Applied sciences Capacitive sensors Circuit noise Circuit topology Electronics Exact sciences and technology Low-frequency noise MOS capacitors Noise cancellation Parasitic capacitance Switched capacitor circuits Switches Testing, measurement, noise and reliability
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