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Low power CMOS potentiostat for three electrodes amperometric chemical sensor

Abstract : This paper presents two front-end electronics architectures, called potentiostats, developed for measuring gas concentrations with electro-chemical sensors. These potentiostats are designed to be integrated in wireless embedded systems. Consequently, the total power consumption is critical. An amperometric three-electrodes electro-chemical sensor has been chosen since it is powerless. Its electrical model has been determined in order to optimize the readout electronics associated. Two potentiostats have been realized in a 0.35µm CMOS process. The most power consumption optimized architecture designed in this work presents a consumption of 10.8µW over a range of detection included from 70nA to 25µA.
keyword : CMOS
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http://hal.in2p3.fr/in2p3-00608620
Contributor : Jeanine Pellet <>
Submitted on : Wednesday, July 13, 2011 - 3:39:24 PM
Last modification on : Thursday, January 11, 2018 - 6:13:48 AM

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P.-A. Boutet, S. Manen. Low power CMOS potentiostat for three electrodes amperometric chemical sensor. 10th Edition of Faible Tension Faible Consommation, May 2011, Marrakech, Morocco. pp.15-18, ⟨10.1109/FTFC.2011.5948906⟩. ⟨in2p3-00608620⟩

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