Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings

Autores
Valverde, Esteban Raul; Arini, Pedro David; Biagetti, Marcelo; Bertran, Guillermo Claudio; Quinteiro, Ricardo Alberto
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyzed the effects of the electrode impedance on the transfer response of a one-stage improved buffer amplifier. The electrode DC resistance (Rd) modifies the one-stage buffer transfer response. We found a limit electrode resistance (Rd(lim)) which depends on the transfer damping factor (∈). If Rd is lower than 86.5 kW, the transfer response of the buffer fulfils the American Heart Association, AHA, recommendations, but when Rd is greater than Rd(lim) it must be cautiously weighted-up because its influence in the transfer response becomes appreciable. The maximum Rd that can be driven by the buffer is 1.2 MW. Higher values never fulfil the AHA recommendations. Therefore, electrodes with higher impedance should not be used with this kind of buffer. On the other hand, when this buffer is used to build-in an instrumentation amplifier (IA) for bipolar recording, the common-mode rejection ratio (CMRR) is sensitive to the electrode type used.
Fil: Valverde, Esteban Raul. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Favaloro; Argentina
Fil: Arini, Pedro David. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Argentino de Matemática Alberto Calderón; Argentina. Universidad Favaloro; Argentina
Fil: Biagetti, Marcelo. Universidad Favaloro; Argentina
Fil: Bertran, Guillermo Claudio. Universidad Favaloro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Quinteiro, Ricardo Alberto. Universidad Favaloro; Argentina
Materia
ELECTRODE IMPEDANCE
BUFFER AMPLIFIER
BIOELECTRIC RECORDINGS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/110162
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/110162
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric RecordingsValverde, Esteban RaulArini, Pedro DavidBiagetti, MarceloBertran, Guillermo ClaudioQuinteiro, Ricardo AlbertoELECTRODE IMPEDANCEBUFFER AMPLIFIERBIOELECTRIC RECORDINGShttps://purl.org/becyt/ford/2.2https://purl.org/becyt/ford/2We analyzed the effects of the electrode impedance on the transfer response of a one-stage improved buffer amplifier. The electrode DC resistance (Rd) modifies the one-stage buffer transfer response. We found a limit electrode resistance (Rd(lim)) which depends on the transfer damping factor (∈). If Rd is lower than 86.5 kW, the transfer response of the buffer fulfils the American Heart Association, AHA, recommendations, but when Rd is greater than Rd(lim) it must be cautiously weighted-up because its influence in the transfer response becomes appreciable. The maximum Rd that can be driven by the buffer is 1.2 MW. Higher values never fulfil the AHA recommendations. Therefore, electrodes with higher impedance should not be used with this kind of buffer. On the other hand, when this buffer is used to build-in an instrumentation amplifier (IA) for bipolar recording, the common-mode rejection ratio (CMRR) is sensitive to the electrode type used.Fil: Valverde, Esteban Raul. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Favaloro; ArgentinaFil: Arini, Pedro David. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Argentino de Matemática Alberto Calderón; Argentina. Universidad Favaloro; ArgentinaFil: Biagetti, Marcelo. Universidad Favaloro; ArgentinaFil: Bertran, Guillermo Claudio. Universidad Favaloro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Quinteiro, Ricardo Alberto. Universidad Favaloro; ArgentinaTaylor & Francis2004-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/110162Valverde, Esteban Raul; Arini, Pedro David; Biagetti, Marcelo; Bertran, Guillermo Claudio; Quinteiro, Ricardo Alberto; Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings; Taylor & Francis; Journal Of Medical Engineering And Technology; 28; 5; 12-2004; 217-2220309-19021464-522XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03091900410001662323info:eu-repo/semantics/altIdentifier/doi/10.1080/03091900410001662323info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:42:33Zoai:ri.conicet.gov.ar:11336/110162instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:42:34.263CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings
title Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings
spellingShingle Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings
Valverde, Esteban Raul
ELECTRODE IMPEDANCE
BUFFER AMPLIFIER
BIOELECTRIC RECORDINGS
title_short Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings
title_full Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings
title_fullStr Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings
title_full_unstemmed Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings
title_sort Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings
dc.creator.none.fl_str_mv Valverde, Esteban Raul
Arini, Pedro David
Biagetti, Marcelo
Bertran, Guillermo Claudio
Quinteiro, Ricardo Alberto
author Valverde, Esteban Raul
author_facet Valverde, Esteban Raul
Arini, Pedro David
Biagetti, Marcelo
Bertran, Guillermo Claudio
Quinteiro, Ricardo Alberto
author_role author
author2 Arini, Pedro David
Biagetti, Marcelo
Bertran, Guillermo Claudio
Quinteiro, Ricardo Alberto
author2_role author
author
author
author
dc.subject.none.fl_str_mv ELECTRODE IMPEDANCE
BUFFER AMPLIFIER
BIOELECTRIC RECORDINGS
topic ELECTRODE IMPEDANCE
BUFFER AMPLIFIER
BIOELECTRIC RECORDINGS
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.2
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv We analyzed the effects of the electrode impedance on the transfer response of a one-stage improved buffer amplifier. The electrode DC resistance (Rd) modifies the one-stage buffer transfer response. We found a limit electrode resistance (Rd(lim)) which depends on the transfer damping factor (∈). If Rd is lower than 86.5 kW, the transfer response of the buffer fulfils the American Heart Association, AHA, recommendations, but when Rd is greater than Rd(lim) it must be cautiously weighted-up because its influence in the transfer response becomes appreciable. The maximum Rd that can be driven by the buffer is 1.2 MW. Higher values never fulfil the AHA recommendations. Therefore, electrodes with higher impedance should not be used with this kind of buffer. On the other hand, when this buffer is used to build-in an instrumentation amplifier (IA) for bipolar recording, the common-mode rejection ratio (CMRR) is sensitive to the electrode type used.
Fil: Valverde, Esteban Raul. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Favaloro; Argentina
Fil: Arini, Pedro David. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Argentino de Matemática Alberto Calderón; Argentina. Universidad Favaloro; Argentina
Fil: Biagetti, Marcelo. Universidad Favaloro; Argentina
Fil: Bertran, Guillermo Claudio. Universidad Favaloro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Quinteiro, Ricardo Alberto. Universidad Favaloro; Argentina
description We analyzed the effects of the electrode impedance on the transfer response of a one-stage improved buffer amplifier. The electrode DC resistance (Rd) modifies the one-stage buffer transfer response. We found a limit electrode resistance (Rd(lim)) which depends on the transfer damping factor (∈). If Rd is lower than 86.5 kW, the transfer response of the buffer fulfils the American Heart Association, AHA, recommendations, but when Rd is greater than Rd(lim) it must be cautiously weighted-up because its influence in the transfer response becomes appreciable. The maximum Rd that can be driven by the buffer is 1.2 MW. Higher values never fulfil the AHA recommendations. Therefore, electrodes with higher impedance should not be used with this kind of buffer. On the other hand, when this buffer is used to build-in an instrumentation amplifier (IA) for bipolar recording, the common-mode rejection ratio (CMRR) is sensitive to the electrode type used.
publishDate 2004
dc.date.none.fl_str_mv 2004-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/110162
Valverde, Esteban Raul; Arini, Pedro David; Biagetti, Marcelo; Bertran, Guillermo Claudio; Quinteiro, Ricardo Alberto; Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings; Taylor & Francis; Journal Of Medical Engineering And Technology; 28; 5; 12-2004; 217-222
0309-1902
1464-522X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/110162
identifier_str_mv Valverde, Esteban Raul; Arini, Pedro David; Biagetti, Marcelo; Bertran, Guillermo Claudio; Quinteiro, Ricardo Alberto; Effect of the Electrode Impedance in Improved Buffer Amplifier for Bioelectric Recordings; Taylor & Francis; Journal Of Medical Engineering And Technology; 28; 5; 12-2004; 217-222
0309-1902
1464-522X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03091900410001662323
info:eu-repo/semantics/altIdentifier/doi/10.1080/03091900410001662323
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613341095395328
score 13.070432

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