{"id":"https://openalex.org/W1531706543","doi":"https://doi.org/10.1109/tcsii.2012.2213361","title":"An Ultralow-Power Low-Voltage Class-AB Fully Differential OpAmp for Long-Life Autonomous Portable Equipment","display_name":"An Ultralow-Power Low-Voltage Class-AB Fully Differential OpAmp for Long-Life Autonomous Portable Equipment","publication_year":2012,"publication_date":"2012-09-04","ids":{"openalex":"https://openalex.org/W1531706543","doi":"https://doi.org/10.1109/tcsii.2012.2213361","mag":"1531706543"},"language":"en","primary_location":{"id":"doi:10.1109/tcsii.2012.2213361","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsii.2012.2213361","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/A5007752714","display_name":"M. R. Valero","orcid":"https://orcid.org/0000-0002-9416-7092"},"institutions":[{"id":"https://openalex.org/I255234318","display_name":"Universidad de Zaragoza","ror":"https://ror.org/012a91z28","country_code":"ES","type":"education","lineage":["https://openalex.org/I255234318"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Mar\u00eda Rodanas Valero Bernal","raw_affiliation_strings":["Group of Electronic Design (I3A), University of Zaragoza, Zaragoza, Spain","Group of Electron. Design (I3A), Univ. of Zaragoza, Zaragoza, Spain"],"affiliations":[{"raw_affiliation_string":"Group of Electronic Design (I3A), University of Zaragoza, Zaragoza, Spain","institution_ids":["https://openalex.org/I255234318"]},{"raw_affiliation_string":"Group of Electron. Design (I3A), Univ. of Zaragoza, Zaragoza, Spain","institution_ids":["https://openalex.org/I255234318"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075718351","display_name":"S. Celma","orcid":"https://orcid.org/0000-0003-0182-7723"},"institutions":[{"id":"https://openalex.org/I255234318","display_name":"Universidad de Zaragoza","ror":"https://ror.org/012a91z28","country_code":"ES","type":"education","lineage":["https://openalex.org/I255234318"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"S. Celma","raw_affiliation_strings":["Group of Electronic Design (I3A), University of Zaragoza, Zaragoza, Spain","Group of Electron. Design (I3A), Univ. of Zaragoza, Zaragoza, Spain"],"affiliations":[{"raw_affiliation_string":"Group of Electronic Design (I3A), University of Zaragoza, Zaragoza, Spain","institution_ids":["https://openalex.org/I255234318"]},{"raw_affiliation_string":"Group of Electron. Design (I3A), Univ. of Zaragoza, Zaragoza, Spain","institution_ids":["https://openalex.org/I255234318"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045657781","display_name":"N. Medrano","orcid":"https://orcid.org/0000-0002-5380-3013"},"institutions":[{"id":"https://openalex.org/I255234318","display_name":"Universidad de Zaragoza","ror":"https://ror.org/012a91z28","country_code":"ES","type":"education","lineage":["https://openalex.org/I255234318"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"N. Medrano","raw_affiliation_strings":["Group of Electronic Design (I3A), University of Zaragoza, Zaragoza, Spain","Group of Electron. Design (I3A), Univ. of Zaragoza, Zaragoza, Spain"],"affiliations":[{"raw_affiliation_string":"Group of Electronic Design (I3A), University of Zaragoza, Zaragoza, Spain","institution_ids":["https://openalex.org/I255234318"]},{"raw_affiliation_string":"Group of Electron. Design (I3A), Univ. of Zaragoza, Zaragoza, Spain","institution_ids":["https://openalex.org/I255234318"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5009944115","display_name":"B. Calvo","orcid":"https://orcid.org/0000-0003-2361-1077"},"institutions":[{"id":"https://openalex.org/I255234318","display_name":"Universidad de Zaragoza","ror":"https://ror.org/012a91z28","country_code":"ES","type":"education","lineage":["https://openalex.org/I255234318"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"B. Calvo","raw_affiliation_strings":["Group of Electronic Design (I3A), University of Zaragoza, Zaragoza, Spain","Group of Electron. Design (I3A), Univ. of Zaragoza, Zaragoza, Spain"],"affiliations":[{"raw_affiliation_string":"Group of Electronic Design (I3A), University of Zaragoza, Zaragoza, Spain","institution_ids":["https://openalex.org/I255234318"]},{"raw_affiliation_string":"Group of Electron. Design (I3A), Univ. of Zaragoza, Zaragoza, Spain","institution_ids":["https://openalex.org/I255234318"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5007752714"],"corresponding_institution_ids":["https://openalex.org/I255234318"],"apc_list":null,"apc_paid":null,"fwci":4.3392,"has_fulltext":false,"cited_by_count":75,"citation_normalized_percentile":{"value":0.941673,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"59","issue":"10","first_page":"643","last_page":"647"},"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":0.9998000264167786,"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/T10558","display_name":"Advancements in Semiconductor Devices and Circuit Design","score":0.9998000264167786,"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/slew-rate","display_name":"Slew rate","score":0.6191067695617676},{"id":"https://openalex.org/keywords/operational-amplifier","display_name":"Operational amplifier","score":0.5805357694625854},{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.477426141500473},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.4598385691642761},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.43484774231910706},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.40266552567481995},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3723500967025757},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.36088883876800537},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.23197084665298462},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1678156852722168}],"concepts":[{"id":"https://openalex.org/C82517063","wikidata":"https://www.wikidata.org/wiki/Q1591315","display_name":"Slew rate","level":3,"score":0.6191067695617676},{"id":"https://openalex.org/C145366948","wikidata":"https://www.wikidata.org/wiki/Q178947","display_name":"Operational amplifier","level":4,"score":0.5805357694625854},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.477426141500473},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.4598385691642761},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.43484774231910706},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.40266552567481995},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3723500967025757},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.36088883876800537},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.23197084665298462},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1678156852722168}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tcsii.2012.2213361","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsii.2012.2213361","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"},{"id":"pmh:oai:research-information.bris.ac.uk:openaire_cris_publications/60501bea-cb52-4ebc-acc3-1fea5d7211c8","is_oa":false,"landing_page_url":"https://research-information.bris.ac.uk/en/publications/60501bea-cb52-4ebc-acc3-1fea5d7211c8","pdf_url":null,"source":{"id":"https://openalex.org/S7407055359","display_name":"Explore Bristol Research","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Valero, M R, Celma, S, Medrano, N & Calvo, B 2012, 'An ultralow-power low-voltage class-AB fully differential opamp for long-life autonomous portable equipment', IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 59, no. 10, 6294513, pp. 643-647. https://doi.org/10.1109/TCSII.2012.2213361","raw_type":"info:eu-repo/semantics/publishedVersion"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W649475307","https://openalex.org/W1510852139","https://openalex.org/W2024489801","https://openalex.org/W2074029859","https://openalex.org/W2125337150","https://openalex.org/W2127623898","https://openalex.org/W2129471658","https://openalex.org/W2138289226","https://openalex.org/W2140049759","https://openalex.org/W2532604255"],"related_works":["https://openalex.org/W101534108","https://openalex.org/W1500249877","https://openalex.org/W2425085424","https://openalex.org/W1972136484","https://openalex.org/W1946609993","https://openalex.org/W2035092043","https://openalex.org/W2023392285","https://openalex.org/W2167303105","https://openalex.org/W1980029443","https://openalex.org/W2789447181"],"abstract_inverted_index":{"This":[0],"brief":[1],"presents":[2],"an":[3],"ultralow-power":[4],"class-AB":[5],"operational":[6],"amplifier":[7],"(OpAmp)":[8],"designed":[9],"in":[10,27],"a":[11,36,67,85,95],"low-cost":[12],"0.18-":[13],"<formula":[14,50,73,87],"formulatype=\"inline\"":[15,51,74,88],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[16,52,75,89],"xmlns:xlink=\"http://www.w3.org/1999/xlink\"><tex":[17,53,76,90],"Notation=\"TeX\">$\\mu\\hbox{m}$</tex></formula>":[18],"CMOS":[19],"technology.":[20],"The":[21],"proposed":[22],"circuit":[23],"uses":[24],"transistors":[25],"biased":[26],"the":[28],"subthreshold":[29],"region":[30],"for":[31,63],"low-voltage":[32],"low-power":[33],"operation.":[34],"For":[35],"0.8-V":[37],"single":[38],"supply,":[39],"this":[40],"OpAmp":[41],"has":[42],"51-dB":[43],"open-loop":[44],"gain,":[45],"57-kHz":[46],"unity-gain":[47],"frequency,":[48],"60":[49],"Notation=\"TeX\">$^{\\circ}$</tex>":[54],"</formula>":[55],"phase":[56],"margin,":[57],"and":[58,94],"65-dB":[59],"common-mode":[60],"rejection":[61],"ratio":[62],"8-pF":[64],"loads":[65],"with":[66],"power":[68],"consumption":[69],"of":[70],"only":[71],"1.2":[72],"Notation=\"TeX\">$\\mu\\hbox{W}$</tex></formula>":[77],".":[78],"Experimental":[79],"results":[80],"illustrate":[81],"performances":[82],"such":[83],"as":[84],"0.14-":[86],"Notation=\"TeX\">$\\hbox{V}/\\mu\\hbox{s}$</tex></formula>":[91],"slew":[92],"rate":[93],"750-mV":[96],"linear":[97],"output":[98],"swing,":[99],"demonstrating":[100],"its":[101],"correct":[102],"functionality.":[103]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":8},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":9},{"year":2018,"cited_by_count":8},{"year":2017,"cited_by_count":6},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":9},{"year":2014,"cited_by_count":8},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":1}],"updated_date":"2026-03-16T09:10:04.655348","created_date":"2025-10-10T00:00:00"}