Transitory recovery time of bio-potential amplifiers that include CMOS pseudo-resistors

dc.contributor.authorPEREIRA, C. F.
dc.contributor.authorBENKO, P. L.
dc.contributor.authorLUCCHI, J. C.
dc.contributor.authorRenato Giacomini
dc.contributor.authorOrcidhttps://orcid.org/0000-0003-1060-2649
dc.date.accessioned2022-01-12T22:00:46Z
dc.date.available2022-01-12T22:00:46Z
dc.date.issued2014-04-04
dc.description.abstract© 2014 IEEE.In this paper a study of the recovery time after a high-amplitude input transitory voltage is evaluated, for a low-frequency bio-potential amplifier. The importance of this parameter for very small low frequency cut-off circuits relies on the expectation, given by the linear model, that the amplifier may take hundreds of seconds to come out of the saturation state, what could be unacceptable for real applications. Actually, the nonlinearity of some components that are used in the amplifiers feedback circuit, particularly the CMOS pseudo-resistors, contributes to the reduction of the recovery time. The bio-amplifier evaluation was carried out using a typical two-stage circuit topology. The circuit behavior is evaluated for several CMOS pseudo-resistor values, with nMOS and pMOS solutions, using a new pseudo-resistor non-linear model. The frequency response target is a 10KHz bandwidth with low frequency cutoff of 1Hz (-3dB). The behavior was evaluated using a MOSIS SCN05 technology (0.5μm) and BSIM3V3.1 models on Eldo™ SPICE analog simulator.
dc.identifier.citationPEREIRA, C. F.; BENKO, P. L.; LUCCHI, J. C.; GIACOMINI, R. Transitory recovery time of bio-potential amplifiers that include CMOS pseudo-resistors. 2014 International Caribbean Conference on Devices, Circuits and Systems, ICCDCS 2014 - Conference Proceedings, Apr. 2014.
dc.identifier.doi10.1109/ICCDCS.2014.7016169
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4022
dc.relation.ispartof2014 International Caribbean Conference on Devices, Circuits and Systems, ICCDCS 2014 - Conference Proceedings
dc.rightsAcesso Restrito
dc.subject.otherlanguageBiopotential amplifier
dc.subject.otherlanguageDC-offset cancellation
dc.subject.otherlanguagepreamplified electrodes
dc.titleTransitory recovery time of bio-potential amplifiers that include CMOS pseudo-resistors
dc.typeArtigo de evento
fei.scopus.citations7
fei.scopus.eid2-s2.0-84946693160
fei.scopus.subjectAnalog simulators
fei.scopus.subjectBiopotential amplifiers
fei.scopus.subjectCircuit behaviors
fei.scopus.subjectDC-offset cancellation
fei.scopus.subjectNon-linear model
fei.scopus.subjectPreamplified electrodes
fei.scopus.subjectReal applications
fei.scopus.subjectTwo stage circuits
fei.scopus.updated2024-07-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84946693160&origin=inward
Arquivos
Coleções