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Kim, Seong-Jin
Bio-inspired Advanced Sensors Lab.
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dc.citation.endPage 1056 -
dc.citation.number 6 -
dc.citation.startPage 1044 -
dc.citation.volume 16 - Cha, Ji-Hyoung - Park, Jee-Ho - Park, Yongjae - Shin, Hyogeun - Hwang, Kyeong Seob - Cho, Il-Joo - Kim, Seong-Jin - 2023-12-21T13:14:02Z - 2023-12-21T13:14:02Z - 2022-12-09 - 2022-12 -
dc.description.abstract This article presents a CMOS microelectrode array (MEA) system with a reconfigurable sub-array multiplexing architecture using the time-division multiplexing (TDM) technique. The system consists of 24,320 TiN electrodes with 17.7 µm-pitch pixels and 380 column-parallel readout channels including a low-noise amplifier, a programmable gain amplifier, and a 10-b successive approximation register analog to digital converter. Readout channels are placed outside the pixel for high spatial resolution, and a flexible structure to acquire neural signals from electrodes selected by configuring in-pixel memory is realized. In this structure, a single channel can handle 8 to 32 electrodes, guaranteeing a temporal resolution from 5kS/s to 20kS/s for each electrode. A 128 × 190 MEA system was fabricated in a 110-nm CMOS process, and each readout channel consumes 81 µW at 1.5-V supply voltage featuring input-referred noise of 1.48 µVrms without multiplexing and 5.4 µVrms with multiplexing at the action-potential band (300 Hz – 10 kHz). -
dc.identifier.bibliographicCitation IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, v.16, no.6, pp.1044 - 1056 -
dc.identifier.doi 10.1109/TBCAS.2022.3211275 -
dc.identifier.issn 1932-4545 -
dc.identifier.scopusid 2-s2.0-85139856918 -
dc.identifier.uri -
dc.identifier.url -
dc.identifier.wosid 000966102000001 -
dc.language 영어 -
dc.publisher Institute of Electrical and Electronics Engineers -
dc.title A CMOS Microelectrode Array System With Reconfigurable Sub-Array Multiplexing Architecture Integrating 24,320 Electrodes and 380 Readout Channels -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Engineering, Biomedical;Engineering, Electrical & Electronic -
dc.relation.journalResearchArea Engineering -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor reconfigurable sub-array multiplexing -
dc.subject.keywordAuthor CMOS microelectrode array -
dc.subject.keywordAuthor Neurons -
dc.subject.keywordAuthor column-parallel readout channel -
dc.subject.keywordAuthor Electrodes -
dc.subject.keywordAuthor in-pixel memory -
dc.subject.keywordAuthor Recording -
dc.subject.keywordAuthor Spatial resolution -
dc.subject.keywordAuthor spatiotemporal resolution -
dc.subject.keywordAuthor time-division multiplexing -
dc.subject.keywordAuthor Microelectrodes -
dc.subject.keywordAuthor Micromechanical devices -
dc.subject.keywordAuthor Monitoring -
dc.subject.keywordAuthor neural recording -
dc.subject.keywordPlus LARGE-SCALE -
dc.subject.keywordPlus BRAIN -
dc.subject.keywordPlus CIRCUIT -
dc.subject.keywordPlus NEURONS -
dc.subject.keywordPlus INTERFACE -
dc.subject.keywordPlus BIOSENSOR -
dc.subject.keywordPlus DESIGN -
dc.subject.keywordPlus PROBES -


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