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A Voltage Controlled Oscillator Using IGZO Thin-Film Transistors

2018-04-26Documento de conferência Acesso aberto
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dc.contributor.authorKeragodu, Tejaswini
dc.contributor.authorTiwari, Bhawna
dc.contributor.authorNishtha
dc.contributor.authorBahubalindruni, Pydi
dc.contributor.authorGoes, Joao
dc.contributor.authorBarquinha, Pedro
dc.contributor.institutionDEE2010-A2 Electrónica
dc.contributor.institutionCTS - Centro de Tecnologia e Sistemas
dc.contributor.institutionDEE - Departamento de Engenharia Electrotécnica e de Computadores
dc.contributor.institutionDCM - Departamento de Ciência dos Materiais
dc.contributor.institutionCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
dc.date.accessioned2019-12-04T23:30:37Z
dc.date.available2019-12-04T23:30:37Z
dc.date.issued2018-04-26
dc.descriptionearly career research grant with project ref. ECR/2017/000931. National Funds through FCT - Portuguese Foundation for Science and Technology POCI-01-0145-FEDER-007688
dc.description.abstractThis paper presents a voltage controlled oscillator (VCO) using amorphous Indium Gallium Zinc Oxide (a-IGZO) thin-film transistors (TFTs). This circuit consists of a high-gain OpAmp, a comparator and a relaxation oscillator. The implemented relaxation oscillator shows a power consumption of 700 μW, when it is simulated with a supply rail of ±5 V. It shows a frequency of oscillation range from 327 to 560 Hz, when the tuning capacitance value varies from 1.6 to 5 pF. On the other hand, the VCO has a power dissipation of 1.3 mW with frequency ranging from 400 to 556 Hz with a controlling voltage from -5 to 5 V. In-house oxide TFT model is used for circuit simulations in Cadence environment. This circuit finds potential applications in large-area flexible systems, namely smart packaging, biomedical and wearable systems, which needs clocks with different frequencies.en
dc.description.versionpreprint
dc.description.versionpublished
dc.format.extent713288
dc.identifier.doi10.1109/ISCAS.2018.8351175
dc.identifier.isbn978-1-5386-4881-0
dc.identifier.otherPURE: 6599194
dc.identifier.otherPURE UUID: dd32437e-5b0c-4e2d-8ed9-6e862d7bbd54
dc.identifier.otherScopus: 85057133437
dc.identifier.otherWOS: 000451218701079
dc.identifier.urihttp://www.scopus.com/inward/record.url?scp=85057133437&partnerID=8YFLogxK
dc.identifier.urlhttps://www.scopus.com/pages/publications/85057133437
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147333/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147324/PT
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/644631/EU
dc.relationHigh-performance, Flexible, AUTOnomous Systems manufactured with Unique, Industrial ROLL-to-roll equipments
dc.relationMaterials Synergy Integration for a Better Europe
dc.relationTransparent and flexible electronics with embedded energy harvesting based on oxide nanowire devices
dc.subjecta-IGZO TFTs
dc.subjectcomparator with oxide TFTs
dc.subjectpositive feedback operational amplifier
dc.subjectRelaxation Oscillator
dc.subjectVoltage Controlled Oscillator
dc.subjectElectrical and Electronic Engineering
dc.titleA Voltage Controlled Oscillator Using IGZO Thin-Film Transistorsen
dc.typeconference object
degois.publication.title2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018 - Proceedings
degois.publication.title2018 IEEE International Symposium on Circuits and Systems, ISCAS 2018
degois.publication.volume2018-May
dspace.entity.typePublication
oaire.awardNumber147333
oaire.awardNumber147324
oaire.awardNumber644631
oaire.awardNumber692373
oaire.awardNumber716510
oaire.awardTitleHigh-performance, Flexible, AUTOnomous Systems manufactured with Unique, Industrial ROLL-to-roll equipments
oaire.awardTitleMaterials Synergy Integration for a Better Europe
oaire.awardTitleTransparent and flexible electronics with embedded energy harvesting based on oxide nanowire devices
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/147333/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/147324/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/644631/EU
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/692373/EU
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/716510/EU
oaire.fundingStream5876
oaire.fundingStream5876
oaire.fundingStreamH2020
oaire.fundingStreamH2020
oaire.fundingStreamH2020
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
project.funder.nameEuropean Commission
project.funder.nameEuropean Commission
rcaap.rightsopenAccess
relation.isProjectOfPublication4feabffc-4782-4bcd-8f7d-aaac8c3f2325
relation.isProjectOfPublication82db2b87-4194-487b-a99a-79db6db20fa1
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