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dc.contributor.authorRazzaghpour, Milad
dc.contributor.authorRodriguez Duenas, Saul
dc.contributor.authorAlarcón Cot, Eduardo José
dc.contributor.authorRusu, Ana
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.identifier.citationRazzaghpour, M. [et al.]. A highly-accurate low-power CMOS potentiostat for implantable biosensors. A: IEEE Biomedical Circuits and Systems Conference (BioCAS). "2011 IEEE Biomedical Circuits and Systems Conference (BioCAS)". San Diego, California: IEEE, 2011, p. 5-8.
dc.description.abstractCurrent-mirror-based potentiostats suffer from systematic and random errors causing offset, gain and linearity error in reading out the sensor data. In this work, a new potentiostat topology is proposed to eliminate the systematic error via an error-cancellation loop. The loop takes advantage of an error-tracking amplifier connected to a transimpedance amplifier with adjustable input common-mode voltage. Due to the enhanced loop gain, the potentiostat is able to accurately copy the sensor current which will then be converted into the proportional voltage. Additionally, a theoretical discussion of the proposed topology is given and a thorough study on the effect of random error sources is carried out. The potentiostat is designed and simulated in a 150nm CMOS process. The results verify a highly-linear highly-accurate performance in a low-noise condition, while consuming only 32 μW.
dc.format.extent4 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria electrònica::Microelectrònica::Circuits integrats
dc.subject.lcshIntegrated circuits
dc.titleA highly-accurate low-power CMOS potentiostat for implantable biosensors
dc.typeConference report
dc.subject.lemacCircuits integrats
dc.contributor.groupUniversitat Politècnica de Catalunya. EPIC - Energy Processing and Integrated Circuits
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
local.citation.authorRazzaghpour, M.; Rodriguez, S.; Alarcón, E.; Rusu, A.
local.citation.contributorIEEE Biomedical Circuits and Systems Conference (BioCAS)
local.citation.pubplaceSan Diego, California
local.citation.publicationName2011 IEEE Biomedical Circuits and Systems Conference (BioCAS)

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