In this work we present the development of an integrated CMOS analog interface able to convert differential capacitive sensors variations into a DC voltage. The presented circuit is based on autobalancing bridge techniques improving its performances through the linearization of the input/output characteristic and the achievement of the full-range sensor variations capability. Comparison between theoretical and measured interface static behaviour results are reported.

Automatic Differential Capacitive Sensing by Means of Linear Interface

Barile G.;Ferri G.;Flammini A.;
2020

Abstract

In this work we present the development of an integrated CMOS analog interface able to convert differential capacitive sensors variations into a DC voltage. The presented circuit is based on autobalancing bridge techniques improving its performances through the linearization of the input/output characteristic and the achievement of the full-range sensor variations capability. Comparison between theoretical and measured interface static behaviour results are reported.
978-3-030-37557-7
978-3-030-37558-4
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11697/166333
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