Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/345844
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampBarros, Angélica Denardi de-
dc.contributor.authorunicampDiniz, José Alexandre-
dc.typeArtigopt_BR
dc.titleUltra-low power integrated analog front-end for ISFET-based sensorspt_BR
dc.contributor.authorPonte, Ronaldo Martins da-
dc.contributor.authorBarros, Angélica Denardi de-
dc.contributor.authorDiniz, José Alexandre-
dc.contributor.authorSousa, Fernando Rangel de-
dc.subjectDetectores químicospt_BR
dc.subject.otherlanguageChemical detectorspt_BR
dc.description.abstractIn this paper, an integrated analog front-end (AFE) to condition ISFET-based sensors is presented. This is accomplished by a pH-controlled ring oscillator (pHCO) that produces a pulse frequency-modulated signal proportional to pH of a testing solution. The AFE was designed in a 180-nm standard CMOS process and a Verilog-based model was used to aid electrochemical simulations. Sensorless measurements of the chip were carried out on the oscilloscope and results revealed a digitally-represented signal with 70 MHz/V of responsivity, under a sweeping voltage from 1.0 V to 1.2 V, and a worst-case scenario of 69.4 µW for the overall power consumption. Moreover, the circuit topology circumvents the body effect problems, suppress the use of OP-AMPs or ADCs, and allows monolithic integrationpt_BR
dc.relation.ispartofJournal of integrated circuits and systemspt_BR
dc.publisher.cityPorto Alegre, RSpt_BR
dc.publisher.countryBrasilpt_BR
dc.publisherSociedade Brasileira de Computaçãopt_BR
dc.date.issued2018-
dc.language.isoengpt_BR
dc.description.volume13pt_BR
dc.description.issuenumber3pt_BR
dc.description.firstpage1pt_BR
dc.description.lastpage11pt_BR
dc.rightsAbertopt_BR
dc.sourceSCOPUSpt_BR
dc.identifier.issn1807-1953pt_BR
dc.identifier.eissn1872-0234pt_BR
dc.identifier.doi10.29292/jics.v13i3.37pt_BR
dc.identifier.urlhttp://ojs.fei.edu.br/ojs/index.php/JICS/article/view/37pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorshipCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsordocumentnumbernão tempt_BR
dc.description.sponsordocumentnumbernão tempt_BR
dc.date.available2020-07-21T17:06:10Z-
dc.date.accessioned2020-07-21T17:06:10Z-
dc.description.provenanceSubmitted by Mariana Aparecida Azevedo (mary1@unicamp.br) on 2020-07-21T17:06:10Z No. of bitstreams: 0. Added 1 bitstream(s) on 2021-01-08T19:02:17Z : No. of bitstreams: 1 2-s2.0-85065548891.pdf: 1698606 bytes, checksum: 3a376bfcdb780d4baa5e904a0603674e (MD5)en
dc.description.provenanceMade available in DSpace on 2020-07-21T17:06:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2018en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/345844-
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentDepartamento de Semicondutores, Instrumentos e Fotônicapt_BR
dc.contributor.unidadeFaculdade de Engenharia Elétrica e de Computaçãopt_BR
dc.contributor.unidadeFaculdade de Engenharia Elétrica e de Computaçãopt_BR
dc.subject.keywordISFETpt_BR
dc.subject.keywordAnalog front-endpt_BR
dc.subject.keywordConditioning Circuitpt_BR
dc.subject.keywordpHCOpt_BR
dc.identifier.source2-s2.0-85065548891pt_BR
dc.creator.orcidsem informaçãopt_BR
dc.creator.orcid0000-0003-3274-3303pt_BR
dc.type.formArtigopt_BR
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