An Improved linearity ring oscillator-based current-to-digital converter

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dc.contributor.authorWall, Anthony
dc.contributor.authorWalsh, Paul
dc.contributor.authorSadeghipour, Khosrov
dc.contributor.authorO'Connell, Ivan
dc.contributor.authorO'Hare Daniel
dc.date.accessioned2022-09-22T10:27:40Z
dc.date.available2022-09-22T10:27:40Z
dc.date.issued2022-08-11
dc.date.updated2022-09-22T09:39:36Z
dc.description.abstractMany biosensors produce single-ended current outputs. Lab-on-chip applications demand parallel readout channels requiring low area current-to-digital converters. High HD2 has limited the current controlled ring oscillator’s (CCROs) adoption as a low area, single-ended converter. This work improves CCRO open loop linearity by 10 dB. A wide-bandwidth current buffer is also designed. A low area (0.0025 mm 2 ), low power ( 357 μW ), single-ended, and 1 MHz bandwidth converter suitable for array readout is presented with the measured performance.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationWall, A., Walsh, P., Sadeghipour, K., O'Connell, I. and Hare D. (2022) 'An Improved Linearity Ring Oscillator-Based Current-to-Digital Converter', IEEE Solid-State Circuits Letters, 5, pp. 202-205. doi: 10.1109/LSSC.2022.3198367en
dc.identifier.doi10.1109/LSSC.2022.3198367en
dc.identifier.endpage205en
dc.identifier.issn2573-9603
dc.identifier.journaltitleIEEE Solid-State Circuits Lettersen
dc.identifier.startpage202en
dc.identifier.urihttps://hdl.handle.net/10468/13637
dc.identifier.volume5en
dc.language.isoenen
dc.publisherIEEEen
dc.relation.urihttps://doi.org/10.1109/LSSC.2022.3198367
dc.rights© 2022 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 worksen
dc.subjectADCen
dc.subjectCurrenten
dc.subjectCurrent to digitalen
dc.subjectData convertersen
dc.subjectDirect digitizationen
dc.subjectFlipped voltage follower (FVF)en
dc.subjectLinearization techniquesen
dc.subjectPhase to digitalen
dc.subjectRing oscillatoren
dc.subjectVCO-based ADCen
dc.subjectInvertersen
dc.subjectLinearityen
dc.subjectDelaysen
dc.subjectDischarges (electric)en
dc.subjectSolid state circuitsen
dc.subjectImpedanceen
dc.subjectBiosensorsen
dc.titleAn Improved linearity ring oscillator-based current-to-digital converteren
dc.typeArticle (peer-reviewed)en
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