Enhanced single-stage folded cascode OTA suitable for large capacitive loads

An enhanced single-stage folded cascode operational transconductance amplifier able to drive large capacitive loads is presented. Circuits that adaptively bias the input differential pair and the current folding stage are employed, which provide class AB operation with dynamic current boosting and i...

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Detalhes bibliográficos
Autores: López Martín, Antonio, Garde Luque, María Pilar, Algueta-Miguel, Jose M., Cruz Blas, Carlos Aristóteles de la, González Carvajal, Ramón, Ramírez-Angulo, Jaime
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Recursos:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/47427
Acesso em linha:https://hdl.handle.net/2454/47427
Access Level:acceso abierto
Palavra-chave:Amplifiers
Analog integrated circuits
CMOS integrated circuits
Class AB circuits
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spelling Enhanced single-stage folded cascode OTA suitable for large capacitive loadsLópez Martín, AntonioGarde Luque, María PilarAlgueta-Miguel, Jose M.Cruz Blas, Carlos Aristóteles de laGonzález Carvajal, RamónRamírez-Angulo, JaimeAmplifiersAnalog integrated circuitsCMOS integrated circuitsClass AB circuitsAn enhanced single-stage folded cascode operational transconductance amplifier able to drive large capacitive loads is presented. Circuits that adaptively bias the input differential pair and the current folding stage are employed, which provide class AB operation with dynamic current boosting and increased gainbandwidth (GBW) product. Measurement results of a test chip prototype fabricated in a 0.5-µm CMOS process show an increase in slew rate and GBW by a factor of 30 and 15, respectively, versus the class A version using the same supply voltage and bias currents. Overhead in other performance metrics is small.This work was supported in part by the Spanish Ministerio de Economía y Competitividad under Grant TEC2013-47286-C3-2, and in part by the Gobierno de Navarra under Grant PI016 ALMIEEEInstitute of Smart Cities - ISC2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2454/47427reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglésinfo:eu-repo/grantAgreement/MINECO//TEC2013-47286-C3-2-Rinfo:eu-repo/grantAgreement/Gobierno de Navarra//PI016 ALM© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/474272026-06-17T12:41:47Z
dc.title.none.fl_str_mv Enhanced single-stage folded cascode OTA suitable for large capacitive loads
title Enhanced single-stage folded cascode OTA suitable for large capacitive loads
spellingShingle Enhanced single-stage folded cascode OTA suitable for large capacitive loads
López Martín, Antonio
Amplifiers
Analog integrated circuits
CMOS integrated circuits
Class AB circuits
title_short Enhanced single-stage folded cascode OTA suitable for large capacitive loads
title_full Enhanced single-stage folded cascode OTA suitable for large capacitive loads
title_fullStr Enhanced single-stage folded cascode OTA suitable for large capacitive loads
title_full_unstemmed Enhanced single-stage folded cascode OTA suitable for large capacitive loads
title_sort Enhanced single-stage folded cascode OTA suitable for large capacitive loads
dc.creator.none.fl_str_mv López Martín, Antonio
Garde Luque, María Pilar
Algueta-Miguel, Jose M.
Cruz Blas, Carlos Aristóteles de la
González Carvajal, Ramón
Ramírez-Angulo, Jaime
author López Martín, Antonio
author_facet López Martín, Antonio
Garde Luque, María Pilar
Algueta-Miguel, Jose M.
Cruz Blas, Carlos Aristóteles de la
González Carvajal, Ramón
Ramírez-Angulo, Jaime
author_role author
author2 Garde Luque, María Pilar
Algueta-Miguel, Jose M.
Cruz Blas, Carlos Aristóteles de la
González Carvajal, Ramón
Ramírez-Angulo, Jaime
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Institute of Smart Cities - ISC
dc.subject.none.fl_str_mv Amplifiers
Analog integrated circuits
CMOS integrated circuits
Class AB circuits
topic Amplifiers
Analog integrated circuits
CMOS integrated circuits
Class AB circuits
description An enhanced single-stage folded cascode operational transconductance amplifier able to drive large capacitive loads is presented. Circuits that adaptively bias the input differential pair and the current folding stage are employed, which provide class AB operation with dynamic current boosting and increased gainbandwidth (GBW) product. Measurement results of a test chip prototype fabricated in a 0.5-µm CMOS process show an increase in slew rate and GBW by a factor of 30 and 15, respectively, versus the class A version using the same supply voltage and bias currents. Overhead in other performance metrics is small.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/47427
url https://hdl.handle.net/2454/47427
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO//TEC2013-47286-C3-2-R
info:eu-repo/grantAgreement/Gobierno de Navarra//PI016 ALM
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IEEE
publisher.none.fl_str_mv IEEE
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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