Applicability of field programmable analog arrays to capacitive sensing in the sub-pF range

Callegari, Sergio and Merendino, G. and Golfarelli, A. and Zagnoni, Michele and Tartagni, M. (2006) Applicability of field programmable analog arrays to capacitive sensing in the sub-pF range. Analog Integrated Circuits and Signal Processing, 47 (1). pp. 39-51.

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Abstract

FPAAs have recently been introduced to reduce analog design costs and bridge the gap between ASICs and circuits made of standard-parts. Here, their applicability to capacitive sensing is investigated. Switched-mode FPAAs were not originally introduced for the readout of elementary sensors or their desensitization from parasitics. Nonetheless, we show that specific techniques can make them up to the task of reading capacitance variations in the tens fF range. We also show that FPAA sensor interfaces can achieve automatic, trimmer-free calibration by FPAA reconfiguration. We conclude by illustrating a sample application as a proof-of-concept of the proposed techniques.

Creators(s): Callegari, Sergio, Merendino, G., Golfarelli, A., Zagnoni, Michele ORCID logoORCID: https://orcid.org/0000-0003-3198-9491 and Tartagni, M.;
Item type:Article
ID code:29079
Keywords:programmable analog arrays , capacitative sensing, Electrical engineering. Electronics Nuclear engineering, Hardware and Architecture, Signal Processing, Surfaces, Coatings and Films
Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
Department:Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Pure Administrator
Date deposited:22 Mar 2011 12:10
Last modified:02 Sep 2020 02:47
URI:https://strathprints.strath.ac.uk/id/eprint/29079
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