{"id":"https://openalex.org/W3183294861","doi":"https://doi.org/10.23919/vlsicircuits52068.2021.9492508","title":"A 3.8-\u03bcW/Ch, 15-G\u03a9 Total Input Impedance Chopper Stabilized Amplifier with Dual Positive Feedback Loops and Auto-calibration Scheme","display_name":"A 3.8-\u03bcW/Ch, 15-G\u03a9 Total Input Impedance Chopper Stabilized Amplifier with Dual Positive Feedback Loops and Auto-calibration Scheme","publication_year":2021,"publication_date":"2021-06-13","ids":{"openalex":"https://openalex.org/W3183294861","doi":"https://doi.org/10.23919/vlsicircuits52068.2021.9492508","mag":"3183294861"},"language":"en","primary_location":{"id":"doi:10.23919/vlsicircuits52068.2021.9492508","is_oa":false,"landing_page_url":"https://doi.org/10.23919/vlsicircuits52068.2021.9492508","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 Symposium on VLSI Circuits","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5086666029","display_name":"Yongjae Park","orcid":"https://orcid.org/0000-0002-6093-9330"},"institutions":[{"id":"https://openalex.org/I48566637","display_name":"Ulsan National Institute of Science and Technology","ror":"https://ror.org/017cjz748","country_code":"KR","type":"education","lineage":["https://openalex.org/I48566637"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Yongjae Park","raw_affiliation_strings":["Ulsan National Institute of Science and Technology,Ulsan,Korea","Ulsan National Institute of Science and Technology, Ulsan, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ulsan National Institute of Science and Technology,Ulsan,Korea","institution_ids":["https://openalex.org/I48566637"]},{"raw_affiliation_string":"Ulsan National Institute of Science and Technology, Ulsan, Korea","institution_ids":["https://openalex.org/I48566637"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015566316","display_name":"Ji-Hyoung Cha","orcid":"https://orcid.org/0000-0001-8126-067X"},"institutions":[{"id":"https://openalex.org/I48566637","display_name":"Ulsan National Institute of Science and Technology","ror":"https://ror.org/017cjz748","country_code":"KR","type":"education","lineage":["https://openalex.org/I48566637"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Ji-Hyoung Cha","raw_affiliation_strings":["Ulsan National Institute of Science and Technology,Ulsan,Korea","Ulsan National Institute of Science and Technology, Ulsan, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ulsan National Institute of Science and Technology,Ulsan,Korea","institution_ids":["https://openalex.org/I48566637"]},{"raw_affiliation_string":"Ulsan National Institute of Science and Technology, Ulsan, Korea","institution_ids":["https://openalex.org/I48566637"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036102827","display_name":"Su-Hyun Han","orcid":null},"institutions":[{"id":"https://openalex.org/I48566637","display_name":"Ulsan National Institute of Science and Technology","ror":"https://ror.org/017cjz748","country_code":"KR","type":"education","lineage":["https://openalex.org/I48566637"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Su-Hyun Han","raw_affiliation_strings":["Ulsan National Institute of Science and Technology,Ulsan,Korea","Ulsan National Institute of Science and Technology, Ulsan, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ulsan National Institute of Science and Technology,Ulsan,Korea","institution_ids":["https://openalex.org/I48566637"]},{"raw_affiliation_string":"Ulsan National Institute of Science and Technology, Ulsan, Korea","institution_ids":["https://openalex.org/I48566637"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019379727","display_name":"Jee-Ho Park","orcid":"https://orcid.org/0000-0001-9198-9157"},"institutions":[{"id":"https://openalex.org/I48566637","display_name":"Ulsan National Institute of Science and Technology","ror":"https://ror.org/017cjz748","country_code":"KR","type":"education","lineage":["https://openalex.org/I48566637"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jee-Ho Park","raw_affiliation_strings":["Ulsan National Institute of Science and Technology,Ulsan,Korea","Ulsan National Institute of Science and Technology, Ulsan, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ulsan National Institute of Science and Technology,Ulsan,Korea","institution_ids":["https://openalex.org/I48566637"]},{"raw_affiliation_string":"Ulsan National Institute of Science and Technology, Ulsan, Korea","institution_ids":["https://openalex.org/I48566637"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100321810","display_name":"Seong\u2010Jin Kim","orcid":"https://orcid.org/0000-0002-9353-5148"},"institutions":[{"id":"https://openalex.org/I48566637","display_name":"Ulsan National Institute of Science and Technology","ror":"https://ror.org/017cjz748","country_code":"KR","type":"education","lineage":["https://openalex.org/I48566637"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Seong-Jin Kim","raw_affiliation_strings":["Ulsan National Institute of Science and Technology,Ulsan,Korea","Ulsan National Institute of Science and Technology, Ulsan, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Ulsan National Institute of Science and Technology,Ulsan,Korea","institution_ids":["https://openalex.org/I48566637"]},{"raw_affiliation_string":"Ulsan National Institute of Science and Technology, Ulsan, Korea","institution_ids":["https://openalex.org/I48566637"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I48566637"],"apc_list":null,"apc_paid":null,"fwci":0.9666,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.70305439,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"2"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10323","display_name":"Analog and Mixed-Signal Circuit Design","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10323","display_name":"Analog and Mixed-Signal Circuit Design","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10187","display_name":"Radio Frequency Integrated Circuit Design","score":0.9975000023841858,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11160","display_name":"Acoustic Wave Resonator Technologies","score":0.996399998664856,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/chopper","display_name":"Chopper","score":0.6046937108039856},{"id":"https://openalex.org/keywords/capacitor","display_name":"Capacitor","score":0.5798072814941406},{"id":"https://openalex.org/keywords/calibration","display_name":"Calibration","score":0.4942024052143097},{"id":"https://openalex.org/keywords/electrical-impedance","display_name":"Electrical impedance","score":0.440653532743454},{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.43913912773132324},{"id":"https://openalex.org/keywords/capacitance","display_name":"Capacitance","score":0.41899311542510986},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.3892871141433716},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.33862388134002686},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.338126003742218},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.2470046877861023},{"id":"https://openalex.org/keywords/optoelectronics","display_name":"Optoelectronics","score":0.15394997596740723},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1309722661972046},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.12549260258674622}],"concepts":[{"id":"https://openalex.org/C2780191706","wikidata":"https://www.wikidata.org/wiki/Q191658","display_name":"Chopper","level":3,"score":0.6046937108039856},{"id":"https://openalex.org/C52192207","wikidata":"https://www.wikidata.org/wiki/Q5322","display_name":"Capacitor","level":3,"score":0.5798072814941406},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.4942024052143097},{"id":"https://openalex.org/C17829176","wikidata":"https://www.wikidata.org/wiki/Q179043","display_name":"Electrical impedance","level":2,"score":0.440653532743454},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.43913912773132324},{"id":"https://openalex.org/C30066665","wikidata":"https://www.wikidata.org/wiki/Q164399","display_name":"Capacitance","level":3,"score":0.41899311542510986},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.3892871141433716},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.33862388134002686},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.338126003742218},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.2470046877861023},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.15394997596740723},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1309722661972046},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.12549260258674622},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0},{"id":"https://openalex.org/C17525397","wikidata":"https://www.wikidata.org/wiki/Q176140","display_name":"Electrode","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.23919/vlsicircuits52068.2021.9492508","is_oa":false,"landing_page_url":"https://doi.org/10.23919/vlsicircuits52068.2021.9492508","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 Symposium on VLSI Circuits","raw_type":"proceedings-article"},{"id":"pmh:oai:scholarworks.unist.ac.kr:201301/53097","is_oa":false,"landing_page_url":"https://scholarworks.unist.ac.kr/handle/201301/53097","pdf_url":null,"source":{"id":"https://openalex.org/S4306401118","display_name":"Scholarworks@UNIST (Ulsan National Institute of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I48566637","host_organization_name":"Ulsan National Institute of Science and Technology","host_organization_lineage":["https://openalex.org/I48566637"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"CONFERENCE"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.6600000262260437}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2899084033","https://openalex.org/W2376014514","https://openalex.org/W2391645806","https://openalex.org/W2387338363","https://openalex.org/W20937862","https://openalex.org/W2080773395","https://openalex.org/W2099626417","https://openalex.org/W2019514496","https://openalex.org/W2085450379","https://openalex.org/W2354552488"],"abstract_inverted_index":{"A":[0],"capacitively-coupled":[1],"chopper":[2,49],"instrument":[3],"amplifier":[4],"(CCIA)":[5],"with":[6,77,93,108],"dual":[7],"positive":[8,34,41],"feedback":[9,35,42,70],"loops":[10],"(DPFL)":[11],"is":[12,64],"proposed":[13,27,66],"to":[14,67,75,90],"achieve":[15],"excellent":[16],"noise":[17],"efficiency":[18],"and":[19,38,98],"high":[20,99],"total":[21],"input":[22,48,100],"impedance":[23],"(T-ZIN)":[24],"simultaneously.":[25],"The":[26,81],"DPFL":[28,74],"consists":[29],"of":[30,46,72,86,96,102],"a":[31,52],"conventional":[32],"internal":[33],"loop":[36,43],"(IPFL)":[37],"an":[39],"external":[40,54],"(EPFL)":[44],"outside":[45],"the":[47,69,73,84,94],"for":[50],"compensating":[51],"large":[53],"parasitic":[55,79],"capacitance":[56],"(CP-EXT)":[57],"improving":[58],"T-ZINsignificantly.":[59],"An":[60],"on-chip":[61],"background":[62],"calibration":[63],"also":[65],"determine":[68],"factor":[71],"deal":[76],"variable":[78],"capacitors.":[80],"prototype":[82],"shows":[83],"IRN":[85],"0.36":[87],"\u03bcVrmsfrom":[88],"0.5":[89],"300":[91],"Hz":[92,107],"NEF":[95],"1.5":[97],"impedances":[101],"15":[103],"G\u03a9":[104],"at":[105],"10":[106],"additional":[109],"CP-EXTof":[110],"82":[111],"pF.":[112]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2022,"cited_by_count":2}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}