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Low-power class-AB CMOS voltage feedback current operational amplifier with tunable gain and bandwidth

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dc.contributor.authorEsparza Alfaro, Fermín
dc.contributor.authorPennisi, Salvatorees_ES
dc.contributor.authorPalumbo, Gaetanoes_ES
dc.contributor.authorLópez Martín, Antonio
dc.contributor.departmentIngeniería Eléctrica y Electrónicaes_ES
dc.contributor.departmentIngeniaritza Elektrikoa eta Elektronikoaeu
dc.date.accessioned2019-11-20T10:07:44Z
dc.date.available2019-11-20T10:07:44Z
dc.date.issued2014
dc.description.abstractA CMOS class AB variable gain Voltage Feedback Current Operational Amplifier (VFCOA) is presented. The implementation is based on class AB second generation current conveyors and exploits an electronically tunable transistorized feedback network. The circuit combines high linearity, low power consumption and variable gain range from 0 to 24 dB with nearly constant bandwidth, tunable from 1 to 3 MHz. A prototype has been fabricated in a 0.5-um technology and occupies a total area of 0.127 mm2. The VFCOA operates using a 3.3-V supply with static power consumption of 280.5 uW. Measurements for maximum gain configuration show a dynamic range (1% THD@300kHz) of 87.5 dB and a THD lower than -40dB for an output current 23 times the bias current.en
dc.description.sponsorshipThis work has been supported in part by the Spanish Direccion General de Investigacion under grant TEC2010-21563-C02-01/MIC.en
dc.format.extent5 p.
dc.format.mimetypeapplication/pdfen
dc.identifier.citationF. Esparza-Alfaro, S. Pennisi, G. Palumbo and A. J. Lopez-Martin, "Low-Power Class-AB CMOS Voltage Feedback Current Operational Amplifier With Tunable Gain and Bandwidth," in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 61, no. 8, pp. 574-578, Aug. 2014. doi: 10.1109/TCSII.2014.2327390en
dc.identifier.doi10.1109/TCSII.2014.2327390
dc.identifier.issn1549-7747
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/35409
dc.language.isoengen
dc.publisherIEEEen
dc.relation.ispartofIEEE Transactions on Circuits and Systems II: Express Briefs, vol. 61, n. 8, August 2014en
dc.relation.projectIDinfo:eu-repo/grantAgreement/MICINN//TEC2010-21563-C02-01/ES/en
dc.relation.publisherversionhttps://doi.org/10.1109/TCSII.2014.2327390
dc.rights© 2014 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.en
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.subjectCMOS analog integrated circuitsen
dc.subjectVoltage feedback operational amplifieren
dc.subjectCurrent modeen
dc.subjectClass ABen
dc.subjectCurrent amplifieren
dc.titleLow-power class-AB CMOS voltage feedback current operational amplifier with tunable gain and bandwidthen
dc.typeArtículo / Artikuluaes
dc.typeinfo:eu-repo/semantics/articleen
dc.type.versionVersión aceptada / Onetsi den bertsioaes
dc.type.versioninfo:eu-repo/semantics/acceptedVersionen
dspace.entity.typePublication
relation.isAuthorOfPublicationf55c6849-fe94-4f9a-b036-12233de10ebb
relation.isAuthorOfPublicationd3dc0470-6429-43e7-80f2-15fae67f4204
relation.isAuthorOfPublication.latestForDiscoveryf55c6849-fe94-4f9a-b036-12233de10ebb

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