Integrated High-Temporal-Resolution and High-Density Subretinal Prosthesis Using a Correlated Double-Sampling Technique
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kang, Hosung | - |
dc.contributor.author | Kim, Jungyeon | - |
dc.contributor.author | Kim, Jungsuk | - |
dc.date.accessioned | 2023-08-20T08:40:53Z | - |
dc.date.available | 2023-08-20T08:40:53Z | - |
dc.date.created | 2023-08-20 | - |
dc.date.issued | 2023-07 | - |
dc.identifier.issn | 1424-8220 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/88791 | - |
dc.description.abstract | This paper presents a 1600-pixel integrated neural stimulator with a correlated double-sampling readout (DSR) circuit for a subretinal prosthesis. The retinal stimulation chip inserted beneath the photoreceptor layer comprises an array of an active pixel sensor (APS) and biphasic pulse shaper. The DSR circuit achieves a high signal-to-noise ratio (SNR) of the APS with a short integration time to simultaneously improve the temporal and spatial resolutions of restored vision. This DSR circuit is adopted along with a 5 x 5-pixel tile, which reduces pixel size and improves the SNR by increasing the area occupied by storage capacitors. Moreover, a low-mismatch reference generator enables a low standard deviation between individual pulse shapers. The 1600-pixel retinal chip, fabricated using the 0.18 & mu;m 1P6M CMOS process, occupies a total area of 4.3 mm x 3.3 mm and dissipates an average power of 3.4 mW; this was demonstrated by determining the stimulus current patterns corresponding to the illuminations of an LCD projector. Experimental results show that the proposed high-density stimulation array chip can achieve a high temporal resolution owing to its short integration time. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.relation.isPartOf | SENSORS | - |
dc.title | Integrated High-Temporal-Resolution and High-Density Subretinal Prosthesis Using a Correlated Double-Sampling Technique | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 001036704300001 | - |
dc.identifier.doi | 10.3390/s23146501 | - |
dc.identifier.bibliographicCitation | SENSORS, v.23, no.14 | - |
dc.description.isOpenAccess | Y | - |
dc.identifier.scopusid | 2-s2.0-85165951660 | - |
dc.citation.title | SENSORS | - |
dc.citation.volume | 23 | - |
dc.citation.number | 14 | - |
dc.contributor.affiliatedAuthor | Kim, Jungyeon | - |
dc.contributor.affiliatedAuthor | Kim, Jungsuk | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | subretinal prosthesis | - |
dc.subject.keywordAuthor | image sensor | - |
dc.subject.keywordAuthor | high-density pixels | - |
dc.subject.keywordAuthor | neural stimulator | - |
dc.subject.keywordAuthor | implantable device | - |
dc.subject.keywordAuthor | temporal resolution | - |
dc.subject.keywordAuthor | correlated double sampling | - |
dc.subject.keywordAuthor | current amplifier | - |
dc.subject.keywordPlus | CMOS IMAGE SENSOR | - |
dc.subject.keywordPlus | CHIP | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
1342, Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, Republic of Korea(13120)031-750-5114
COPYRIGHT 2020 Gachon University All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.