An ultra-low-power front-end for differential capacitive sensors

Abstract : In this paper, we present a simple, compact and low-power interface for differential capacitive sensors with direct digital output. The complete system is composed with a current to voltage amplifier, an integrator, a comparator and a feedback capacitor connected in parallel with one of the two capacitances. Overall a Sigma-Delta modulator is obtained that is able to deliver directly a bit stream proportional to the differential capacitance.
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Communication dans un congrès
DTIP: Design, Test, Integration and Packaging, Apr 2015, Montpellier, France. IEEE, 2015, Symposium on Design, Test, Integration & Packaging of MEMS/MOEMS (DTIP2015). 〈10.1109/DTIP.2015.7160964〉
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https://hal-lirmm.ccsd.cnrs.fr/lirmm-01235453
Contributeur : Frédérick Mailly <>
Soumis le : lundi 30 novembre 2015 - 11:30:51
Dernière modification le : jeudi 28 juin 2018 - 17:53:16

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Patcharee Kongpark, Frédérick Mailly, Laurent Latorre, Pascal Nouet. An ultra-low-power front-end for differential capacitive sensors. DTIP: Design, Test, Integration and Packaging, Apr 2015, Montpellier, France. IEEE, 2015, Symposium on Design, Test, Integration & Packaging of MEMS/MOEMS (DTIP2015). 〈10.1109/DTIP.2015.7160964〉. 〈lirmm-01235453〉

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