{"id":"https://openalex.org/W2101394360","doi":"https://doi.org/10.1109/jssc.2009.2032710","title":"A Chopper Current-Feedback Instrumentation Amplifier With a 1 mHz <formula formulatype=\"inline\"><tex Notation=\"TeX\">$1/f$</tex> </formula> Noise Corner and an AC-Coupled Ripple Reduction Loop","display_name":"A Chopper Current-Feedback Instrumentation Amplifier With a 1 mHz <formula formulatype=\"inline\"><tex Notation=\"TeX\">$1/f$</tex> </formula> Noise Corner and an AC-Coupled Ripple Reduction Loop","publication_year":2009,"publication_date":"2009-12-01","ids":{"openalex":"https://openalex.org/W2101394360","doi":"https://doi.org/10.1109/jssc.2009.2032710","mag":"2101394360"},"language":"en","primary_location":{"id":"doi:10.1109/jssc.2009.2032710","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jssc.2009.2032710","pdf_url":null,"source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"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 Journal of Solid-State Circuits","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://resolver.tudelft.nl/uuid:f9743b10-a375-4425-bb28-d96d843e52f7","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101884152","display_name":"Rong Wu","orcid":"https://orcid.org/0000-0002-0485-2249"},"institutions":[{"id":"https://openalex.org/I98358874","display_name":"Delft University of Technology","ror":"https://ror.org/02e2c7k09","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Rong Wu","raw_affiliation_strings":["Electronic Instrumentation Laboratory, DIMES, Delft University of Technnology, Delft, Netherlands","Electron. Instrum. Lab., Delft Univ. of Technol., Delft, Netherlands"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Electronic Instrumentation Laboratory, DIMES, Delft University of Technnology, Delft, Netherlands","institution_ids":["https://openalex.org/I98358874"]},{"raw_affiliation_string":"Electron. Instrum. Lab., Delft Univ. of Technol., Delft, Netherlands","institution_ids":["https://openalex.org/I98358874"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029302924","display_name":"Kofi A. A. Makinwa","orcid":"https://orcid.org/0000-0002-2992-5467"},"institutions":[{"id":"https://openalex.org/I98358874","display_name":"Delft University of Technology","ror":"https://ror.org/02e2c7k09","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Kofi A. A. Makinwa","raw_affiliation_strings":["Electronic Instrumentation Laboratory, DIMES, Delft University of Technnology, Delft, Netherlands","Electron. Instrum. Lab., Delft Univ. of Technol., Delft, Netherlands"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Electronic Instrumentation Laboratory, DIMES, Delft University of Technnology, Delft, Netherlands","institution_ids":["https://openalex.org/I98358874"]},{"raw_affiliation_string":"Electron. Instrum. Lab., Delft Univ. of Technol., Delft, Netherlands","institution_ids":["https://openalex.org/I98358874"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091851429","display_name":"Johan H. Huijsing","orcid":null},"institutions":[{"id":"https://openalex.org/I98358874","display_name":"Delft University of Technology","ror":"https://ror.org/02e2c7k09","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Johan H. Huijsing","raw_affiliation_strings":["Electronic Instrumentation Laboratory, DIMES, Delft University of Technnology, Delft, Netherlands","Electron. Instrum. Lab., Delft Univ. of Technol., Delft, Netherlands"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Electronic Instrumentation Laboratory, DIMES, Delft University of Technnology, Delft, Netherlands","institution_ids":["https://openalex.org/I98358874"]},{"raw_affiliation_string":"Electron. Instrum. Lab., Delft Univ. of Technol., Delft, Netherlands","institution_ids":["https://openalex.org/I98358874"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I98358874"],"apc_list":null,"apc_paid":null,"fwci":10.0006,"has_fulltext":true,"cited_by_count":278,"citation_normalized_percentile":{"value":0.98732079,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"44","issue":"12","first_page":"3232","last_page":"3243"},"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":0.9998999834060669,"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":0.9998999834060669,"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/T12692","display_name":"Magnetic Field Sensors Techniques","score":0.9994000196456909,"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/T12564","display_name":"Sensor Technology and Measurement Systems","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/chopper","display_name":"Chopper","score":0.7355416417121887},{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.6313138008117676},{"id":"https://openalex.org/keywords/ripple","display_name":"Ripple","score":0.614658534526825},{"id":"https://openalex.org/keywords/instrumentation-amplifier","display_name":"Instrumentation amplifier","score":0.6006118655204773},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.5214316844940186},{"id":"https://openalex.org/keywords/effective-input-noise-temperature","display_name":"Effective input noise temperature","score":0.5057854652404785},{"id":"https://openalex.org/keywords/operational-amplifier","display_name":"Operational amplifier","score":0.48604661226272583},{"id":"https://openalex.org/keywords/direct-coupled-amplifier","display_name":"Direct-coupled amplifier","score":0.465481698513031},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4523698389530182},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.4445621967315674},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.41096729040145874},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.35688912868499756},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.34891200065612793},{"id":"https://openalex.org/keywords/low-noise-amplifier","display_name":"Low-noise amplifier","score":0.3122071921825409},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3110355734825134},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.16196629405021667},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.07151380181312561}],"concepts":[{"id":"https://openalex.org/C2780191706","wikidata":"https://www.wikidata.org/wiki/Q191658","display_name":"Chopper","level":3,"score":0.7355416417121887},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.6313138008117676},{"id":"https://openalex.org/C2779599953","wikidata":"https://www.wikidata.org/wiki/Q1776117","display_name":"Ripple","level":3,"score":0.614658534526825},{"id":"https://openalex.org/C89123640","wikidata":"https://www.wikidata.org/wiki/Q1523756","display_name":"Instrumentation amplifier","level":5,"score":0.6006118655204773},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.5214316844940186},{"id":"https://openalex.org/C12252657","wikidata":"https://www.wikidata.org/wiki/Q5347266","display_name":"Effective input noise temperature","level":5,"score":0.5057854652404785},{"id":"https://openalex.org/C145366948","wikidata":"https://www.wikidata.org/wiki/Q178947","display_name":"Operational amplifier","level":4,"score":0.48604661226272583},{"id":"https://openalex.org/C172218469","wikidata":"https://www.wikidata.org/wiki/Q4477697","display_name":"Direct-coupled amplifier","level":5,"score":0.465481698513031},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4523698389530182},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.4445621967315674},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.41096729040145874},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.35688912868499756},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.34891200065612793},{"id":"https://openalex.org/C155332784","wikidata":"https://www.wikidata.org/wiki/Q1151304","display_name":"Low-noise amplifier","level":4,"score":0.3122071921825409},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3110355734825134},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.16196629405021667},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.07151380181312561},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/jssc.2009.2032710","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jssc.2009.2032710","pdf_url":null,"source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"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 Journal of Solid-State Circuits","raw_type":"journal-article"},{"id":"pmh:tud:oai:tudelft.nl:uuid:f9743b10-a375-4425-bb28-d96d843e52f7","is_oa":true,"landing_page_url":"http://resolver.tudelft.nl/uuid:f9743b10-a375-4425-bb28-d96d843e52f7","pdf_url":"http://resolver.tudelft.nl/uuid:f9743b10-a375-4425-bb28-d96d843e52f7","source":{"id":"https://openalex.org/S4306401843","display_name":"Data Archiving and Networked Services (DANS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1322597698","host_organization_name":"Royal Netherlands Academy of Arts and Sciences","host_organization_lineage":["https://openalex.org/I1322597698"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Journal of Solid-State Circuits, 44 (12), 2009","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"pmh:tud:oai:tudelft.nl:uuid:f9743b10-a375-4425-bb28-d96d843e52f7","is_oa":true,"landing_page_url":"http://resolver.tudelft.nl/uuid:f9743b10-a375-4425-bb28-d96d843e52f7","pdf_url":"http://resolver.tudelft.nl/uuid:f9743b10-a375-4425-bb28-d96d843e52f7","source":{"id":"https://openalex.org/S4306401843","display_name":"Data Archiving and Networked Services (DANS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1322597698","host_organization_name":"Royal Netherlands Academy of Arts and Sciences","host_organization_lineage":["https://openalex.org/I1322597698"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Journal of Solid-State Circuits, 44 (12), 2009","raw_type":"info:eu-repo/semantics/article"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.7099999785423279,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2101394360.pdf","grobid_xml":"https://content.openalex.org/works/W2101394360.grobid-xml"},"referenced_works_count":25,"referenced_works":["https://openalex.org/W277059554","https://openalex.org/W1524392922","https://openalex.org/W1530605177","https://openalex.org/W1546726434","https://openalex.org/W1563260327","https://openalex.org/W1571554264","https://openalex.org/W1595856916","https://openalex.org/W1991303160","https://openalex.org/W2111146447","https://openalex.org/W2112611349","https://openalex.org/W2119517556","https://openalex.org/W2122617960","https://openalex.org/W2154788794","https://openalex.org/W2156209188","https://openalex.org/W2158142805","https://openalex.org/W2159318368","https://openalex.org/W2159371590","https://openalex.org/W2162875967","https://openalex.org/W2168674552","https://openalex.org/W2177721770","https://openalex.org/W2180601862","https://openalex.org/W3148150315","https://openalex.org/W4243867153","https://openalex.org/W6631539453","https://openalex.org/W6682283079"],"related_works":["https://openalex.org/W2382878252","https://openalex.org/W2361054548","https://openalex.org/W2156754658","https://openalex.org/W2300279758","https://openalex.org/W2461385857","https://openalex.org/W2161026580","https://openalex.org/W1975129856","https://openalex.org/W1984254090","https://openalex.org/W2246359509","https://openalex.org/W2361602966"],"abstract_inverted_index":{"This":[0],"paper":[1],"presents":[2],"a":[3,21,39,64,111,121,130],"chopper":[4,59,95],"instrumentation":[5],"amplifier":[6,19,62],"for":[7],"interfacing":[8],"precision":[9],"thermistor":[10],"bridges.":[11],"For":[12],"high":[13],"CMRR":[14,122],"and":[15,33,83,120],"DC":[16,82],"gain,":[17],"the":[18,31,37,61,75,105],"employs":[20,63],"three-stage":[22],"current-feedback":[23],"topology":[24],"with":[25],"nested-Miller":[26],"compensation.":[27],"By":[28],"chopping":[29],"both":[30],"input":[32,113],"intermediate":[34],"stages":[35],"of":[36,54,116,133],"amplifier,":[38],"1":[40],"mHz":[41],"1/fnoise":[42],"corner":[43],"was":[44],"achieved":[45],"at":[46,129,136],"an":[47],"input-referred":[48,108],"noise":[49,79,87],"power":[50],"spectral":[51],"density":[52],"(PSD)":[53],"15":[55],"nV/\u00bfHz.":[56],"To":[57],"reduce":[58],"ripple,":[60],"continuous-time":[65,73],"AC-coupled":[66],"ripple":[67,96],"reduction":[68],"loop.":[69],"Due":[70],"to":[71,81,102],"its":[72],"nature,":[74],"loop":[76,93],"causes":[77],"no":[78],"folding":[80],"hence":[84],"offers":[85],"improved":[86],"performance":[88],"over":[89],"auto-zeroed":[90],"amplifiers.":[91],"The":[92],"reduces":[94],"by":[97],"more":[98],"than":[99,124],"60":[100],"dB,":[101],"levels":[103],"below":[104],"amplifier's":[106],"own":[107],"noise.":[109],"Furthermore,":[110],"maximum":[112],"referred":[114],"offset":[115],"5":[117,137],"\u00bf":[118],"V":[119],"greater":[123],"120":[125],"dB":[126],"were":[127],"measured":[128],"supply":[131],"current":[132],"230":[134],"\u00bfA":[135],"V.":[138]},"counts_by_year":[{"year":2026,"cited_by_count":8},{"year":2025,"cited_by_count":23},{"year":2024,"cited_by_count":20},{"year":2023,"cited_by_count":16},{"year":2022,"cited_by_count":13},{"year":2021,"cited_by_count":14},{"year":2020,"cited_by_count":14},{"year":2019,"cited_by_count":25},{"year":2018,"cited_by_count":16},{"year":2017,"cited_by_count":19},{"year":2016,"cited_by_count":16},{"year":2015,"cited_by_count":15},{"year":2014,"cited_by_count":17},{"year":2013,"cited_by_count":11},{"year":2012,"cited_by_count":19}],"updated_date":"2026-07-29T09:40:50.615796","created_date":"2016-06-24T00:00:00"}