{"id":"https://openalex.org/W3009054791","doi":"https://doi.org/10.1109/tcsii.2020.2977664","title":"Chopper-Stabilized Low-Noise Multipath Operational Amplifier With Dual Ripple Rejection Loops","display_name":"Chopper-Stabilized Low-Noise Multipath Operational Amplifier With Dual Ripple Rejection Loops","publication_year":2020,"publication_date":"2020-03-03","ids":{"openalex":"https://openalex.org/W3009054791","doi":"https://doi.org/10.1109/tcsii.2020.2977664","mag":"3009054791"},"language":"en","primary_location":{"id":"doi:10.1109/tcsii.2020.2977664","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsii.2020.2977664","pdf_url":null,"source":{"id":"https://openalex.org/S93916849","display_name":"IEEE Transactions on Circuits & Systems II Express Briefs","issn_l":"1549-7747","issn":["1549-7747","1558-3791"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Circuits and Systems II: Express Briefs","raw_type":"journal-article"},"type":"article","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/A5058611096","display_name":"Hyungseup Kim","orcid":"https://orcid.org/0000-0001-8428-9435"},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Hyungseup Kim","raw_affiliation_strings":["Chungnam National University, Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Chungnam National University, Daejeon, South Korea","institution_ids":["https://openalex.org/I196345858"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085114504","display_name":"Kwonsang Han","orcid":null},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Kwonsang Han","raw_affiliation_strings":["Chungnam National University, Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Chungnam National University, Daejeon, South Korea","institution_ids":["https://openalex.org/I196345858"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040505021","display_name":"Kim Js","orcid":"https://orcid.org/0000-0001-5348-9178"},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jaesung Kim","raw_affiliation_strings":["Chungnam National University, Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Chungnam National University, Daejeon, South Korea","institution_ids":["https://openalex.org/I196345858"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110658385","display_name":"Donggeun You","orcid":null},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Donggeun You","raw_affiliation_strings":["Chungnam National University, Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Chungnam National University, Daejeon, South Korea","institution_ids":["https://openalex.org/I196345858"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003247211","display_name":"Hyunwoo Heo","orcid":"https://orcid.org/0000-0002-9186-9582"},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyunwoo Heo","raw_affiliation_strings":["Chungnam National University, Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Chungnam National University, Daejeon, South Korea","institution_ids":["https://openalex.org/I196345858"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110725929","display_name":"Yongsu Kwon","orcid":null},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Yongsu Kwon","raw_affiliation_strings":["Chungnam National University, Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Chungnam National University, Daejeon, South Korea","institution_ids":["https://openalex.org/I196345858"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007798566","display_name":"Choul\u2010Young Kim","orcid":"https://orcid.org/0000-0002-5532-7399"},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Choul-Young Kim","raw_affiliation_strings":["Chungnam National University, Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Chungnam National University, Daejeon, South Korea","institution_ids":["https://openalex.org/I196345858"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091905190","display_name":"Hi\u2010Deok Lee","orcid":"https://orcid.org/0000-0002-4840-5336"},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hi-Deok Lee","raw_affiliation_strings":["Chungnam National University, Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Chungnam National University, Daejeon, South Korea","institution_ids":["https://openalex.org/I196345858"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5039327059","display_name":"Hyoungho Ko","orcid":"https://orcid.org/0000-0001-5348-3585"},"institutions":[{"id":"https://openalex.org/I196345858","display_name":"Chungnam National University","ror":"https://ror.org/0227as991","country_code":"KR","type":"education","lineage":["https://openalex.org/I196345858"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyoungho Ko","raw_affiliation_strings":["Chungnam National University, Daejeon, South Korea"],"affiliations":[{"raw_affiliation_string":"Chungnam National University, Daejeon, South Korea","institution_ids":["https://openalex.org/I196345858"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":9,"corresponding_author_ids":["https://openalex.org/A5058611096"],"corresponding_institution_ids":["https://openalex.org/I196345858"],"apc_list":null,"apc_paid":null,"fwci":1.03,"has_fulltext":false,"cited_by_count":27,"citation_normalized_percentile":{"value":0.73096315,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"67","issue":"11","first_page":"2427","last_page":"2431"},"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":1.0,"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":1.0,"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":0.9995999932289124,"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/T11417","display_name":"Advancements in PLL and VCO Technologies","score":0.9994999766349792,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/ripple","display_name":"Ripple","score":0.7095652222633362},{"id":"https://openalex.org/keywords/chopper","display_name":"Chopper","score":0.6534639000892639},{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.6072859168052673},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5069689750671387},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.4896555542945862},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.4297355115413666},{"id":"https://openalex.org/keywords/active-noise-control","display_name":"Active noise control","score":0.4258894622325897},{"id":"https://openalex.org/keywords/low-pass-filter","display_name":"Low-pass filter","score":0.4236159026622772},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.42183718085289},{"id":"https://openalex.org/keywords/multipath-propagation","display_name":"Multipath propagation","score":0.41624850034713745},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.41582056879997253},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.37937256693840027},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.33793503046035767},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.29522913694381714},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.22593891620635986},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.08604779839515686},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.07938271760940552}],"concepts":[{"id":"https://openalex.org/C2779599953","wikidata":"https://www.wikidata.org/wiki/Q1776117","display_name":"Ripple","level":3,"score":0.7095652222633362},{"id":"https://openalex.org/C2780191706","wikidata":"https://www.wikidata.org/wiki/Q191658","display_name":"Chopper","level":3,"score":0.6534639000892639},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.6072859168052673},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5069689750671387},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.4896555542945862},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.4297355115413666},{"id":"https://openalex.org/C100342000","wikidata":"https://www.wikidata.org/wiki/Q583234","display_name":"Active noise control","level":3,"score":0.4258894622325897},{"id":"https://openalex.org/C44682112","wikidata":"https://www.wikidata.org/wiki/Q918242","display_name":"Low-pass filter","level":3,"score":0.4236159026622772},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.42183718085289},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.41624850034713745},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.41582056879997253},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.37937256693840027},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.33793503046035767},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.29522913694381714},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.22593891620635986},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.08604779839515686},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.07938271760940552}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcsii.2020.2977664","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsii.2020.2977664","pdf_url":null,"source":{"id":"https://openalex.org/S93916849","display_name":"IEEE Transactions on Circuits & Systems II Express Briefs","issn_l":"1549-7747","issn":["1549-7747","1558-3791"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Circuits and Systems II: Express Briefs","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.8899999856948853,"display_name":"Affordable and clean energy"}],"awards":[{"id":"https://openalex.org/G5256445905","display_name":null,"funder_award_id":"HI19C0642","funder_id":"https://openalex.org/F4320322034","funder_display_name":"Ministry of Health and Welfare"}],"funders":[{"id":"https://openalex.org/F4320322034","display_name":"Ministry of Health and Welfare","ror":"https://ror.org/00vxgjw72"},{"id":"https://openalex.org/F4320322107","display_name":"Korea Health Industry Development Institute","ror":"https://ror.org/00fdzyk40"},{"id":"https://openalex.org/F4320332195","display_name":"Samsung","ror":"https://ror.org/04w3jy968"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W43577712","https://openalex.org/W67842732","https://openalex.org/W1592605254","https://openalex.org/W1710216139","https://openalex.org/W1997668338","https://openalex.org/W2054295738","https://openalex.org/W2072986608","https://openalex.org/W2075135661","https://openalex.org/W2101394360","https://openalex.org/W2104609839","https://openalex.org/W2112611349","https://openalex.org/W2119517556","https://openalex.org/W2149539923","https://openalex.org/W2150213294","https://openalex.org/W2155863352","https://openalex.org/W2166139819","https://openalex.org/W2177721770","https://openalex.org/W2309936867","https://openalex.org/W2565951988","https://openalex.org/W2772362462","https://openalex.org/W2794148014","https://openalex.org/W2945102974","https://openalex.org/W2955739968","https://openalex.org/W6637510835"],"related_works":["https://openalex.org/W2376014514","https://openalex.org/W2391645806","https://openalex.org/W2080606327","https://openalex.org/W4229441739","https://openalex.org/W2387338363","https://openalex.org/W4303411445","https://openalex.org/W20937862","https://openalex.org/W4207040089","https://openalex.org/W2181931672","https://openalex.org/W1649851888"],"abstract_inverted_index":{"This":[0],"brief":[1],"presents":[2],"a":[3,19,23,55,64,74,84,116],"chopper-stabilized":[4],"low-noise":[5],"multipath":[6,15],"operational":[7],"amplifier":[8,16,80],"with":[9,73,88,115],"dual":[10,32,48],"ripple":[11,33,49],"rejection":[12,34,50,72],"loops.":[13],"The":[14,31,47,79,99],"scheme":[17],"has":[18],"lower":[20],"noise":[21,45,102],"and":[22,43,63,107],"wider":[24],"bandwidth":[25],"than":[26],"the":[27,41,108],"conventional":[28],"chopper":[29],"amplifiers.":[30],"loops":[35,51],"are":[36,52],"proposed":[37],"to":[38],"effectively":[39],"attenuate":[40],"offset":[42],"low-frequency":[44,71],"components.":[46],"implemented":[53],"using":[54,83],"feedback":[56],"low-pass":[57],"filter":[58,67],"(LPF)":[59],"for":[60,69],"AC":[61],"coupling":[62],"floating":[65],"high-pass":[66],"(HPF)":[68],"additional":[70],"fast":[75],"common":[76],"mode":[77],"response.":[78],"is":[81,104,112],"fabricated":[82],"0.18-\u03bcm":[85],"CMOS":[86],"process":[87],"an":[89],"active":[90],"area":[91],"of":[92],"4.92":[93],"mm":[94],"<sup":[95],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[96],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>":[97],".":[98],"input":[100],"referred":[101],"level":[103],"6.62":[105],"nV/\u221aHz,":[106],"total":[109],"current":[110],"consumption":[111],"117.2":[113],"\u03bcA":[114],"1.8":[117],"V":[118],"power":[119],"supply.":[120]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
