A capacitive sensor interface for high-resolution acquisitions in hostile environments

Conference paper (2016)

Authors

D.G. Muratore Pavia University
Edoardo Bonizzoni Pavia University
Franco Maloberti Pavia University
Carlo Fiocchi AMS Italy
Affiliation
External organisation
Capacitive Sensor ADC EMI-Free Acquisition N-Path Filter
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Published Date

2016

Language

English

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External organisation

Abstract

This paper presents a novel architecture for capacitive sensor interfaces that is insensitive to electro magnetic interferers in hostile environments. A bridge structure, with a feedback control and a special band-pass filter, overcomes the problems that affect the standard approaches. Behavioural level simulations demonstrate the feasibility of the idea for 12-bit resolution.