Chopper-stabilized Multipath Instrumentation Amplifier with Output Voltage Offset Compensation Using R-2R Digital-to-Analog Converter
This paper presents a 3-opamp resistive bridge sensor analog front-end (AFE) integrated circuit (IC) with offset voltage compensation using an R-2R digital-to-analog converter (DAC). The proposed IC is implemented with a 3-opamp instrumentation amplifier (IA) to achieve high gain, high input impedan...
Gespeichert in:
Veröffentlicht in: | Sensors and materials 2021-08, Vol.33 (8), p.2709 |
---|---|
Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | |
---|---|
container_issue | 8 |
container_start_page | 2709 |
container_title | Sensors and materials |
container_volume | 33 |
creator | Heo, Hyunwoo Kim, Hyungseup You, Donggeun Kwon, Yongsu Cho, Dong-il “Dan” Ko, Hyoungho |
description | This paper presents a 3-opamp resistive bridge sensor analog front-end (AFE) integrated circuit (IC) with offset voltage compensation using an R-2R digital-to-analog converter (DAC). The proposed IC is implemented with a 3-opamp instrumentation amplifier (IA) to achieve high gain, high input impedance, and linearity. The two amplifiers in the first stage are multipath amplifiers with a chopper stabilization technique and ripple reduction loop (RRL). The chopper stabilization technique reduces 1/f flicker noise and DC offset, and the RRL mitigates the output ripple voltage resulting from the chopper stabilization technique. The multipath amplifier scheme compensates the notch characteristic in the frequency response caused by the RRL. A fully differential amplifier with a class-AB output stage is used in the second stage to achieve power efficiency. The 12-bit R-2R DAC is implemented to compensate the offset of the second-stage output of the IA. The IA gain can be controlled from 12 to 48 dB using 2-bit and 3-bit programmable feedback resistor arrays in the first and second stages, respectively. The proposed IC is designed with a 0.18 μm complementary metal-oxide-semiconductor (CMOS) process and has an active area of 7.2 mm2. The simulated input-referred noise is 36.7 nV/√Hz at a frequency of 1 Hz and the simulated input offset voltage is 2.2 μV. |
doi_str_mv | 10.18494/SAM.2021.3351 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2565202788</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2565202788</sourcerecordid><originalsourceid>FETCH-LOGICAL-c328t-8a0abab435ce482a43410227469288a3fa95c6492c1f1786b20f5cd48bc5457a3</originalsourceid><addsrcrecordid>eNotkDtPwzAURi0EEhV0ZbbE7OBn4oxReFVqValQ1shJndRVEgfbAcHO_yalTHf4zr367gHghuCISJ7yu5dsFVFMScSYIGdgRjkTCMs4PQcznBKOeMrEJZh7f8AYEylwTOMZ-Mn3dhi0Qz6o0rTmW-_gamyDGVTYw0Xvgxs73QcVjO1h1g2tqY128NNM8XoMwxjgm22DajRc17XXAea2G3TvTxtbb_oGbhDdwHvTmKBaFCzKetXaZiL7D-2Cdtfgolat1_P_eQW2jw-v-TNarp8WebZEFaMyIKmwKlU5fVZpLqnijBNMacLjlEqpWK1SUcU8pRWpSSLjkuJaVDsuy0pwkSh2BW5Pdwdn30ftQ3Gwo5vK-IKKWEz-EiknKjpRlbPeO10XgzOdcl8FwcWf7WKyXRxtF0fb7Bf5FnN5</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2565202788</pqid></control><display><type>article</type><title>Chopper-stabilized Multipath Instrumentation Amplifier with Output Voltage Offset Compensation Using R-2R Digital-to-Analog Converter</title><source>DOAJ Directory of Open Access Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Alma/SFX Local Collection</source><creator>Heo, Hyunwoo ; Kim, Hyungseup ; You, Donggeun ; Kwon, Yongsu ; Cho, Dong-il “Dan” ; Ko, Hyoungho</creator><creatorcontrib>Heo, Hyunwoo ; Kim, Hyungseup ; You, Donggeun ; Kwon, Yongsu ; Cho, Dong-il “Dan” ; Ko, Hyoungho</creatorcontrib><description>This paper presents a 3-opamp resistive bridge sensor analog front-end (AFE) integrated circuit (IC) with offset voltage compensation using an R-2R digital-to-analog converter (DAC). The proposed IC is implemented with a 3-opamp instrumentation amplifier (IA) to achieve high gain, high input impedance, and linearity. The two amplifiers in the first stage are multipath amplifiers with a chopper stabilization technique and ripple reduction loop (RRL). The chopper stabilization technique reduces 1/f flicker noise and DC offset, and the RRL mitigates the output ripple voltage resulting from the chopper stabilization technique. The multipath amplifier scheme compensates the notch characteristic in the frequency response caused by the RRL. A fully differential amplifier with a class-AB output stage is used in the second stage to achieve power efficiency. The 12-bit R-2R DAC is implemented to compensate the offset of the second-stage output of the IA. The IA gain can be controlled from 12 to 48 dB using 2-bit and 3-bit programmable feedback resistor arrays in the first and second stages, respectively. The proposed IC is designed with a 0.18 μm complementary metal-oxide-semiconductor (CMOS) process and has an active area of 7.2 mm2. The simulated input-referred noise is 36.7 nV/√Hz at a frequency of 1 Hz and the simulated input offset voltage is 2.2 μV.</description><identifier>ISSN: 0914-4935</identifier><identifier>EISSN: 2435-0869</identifier><identifier>DOI: 10.18494/SAM.2021.3351</identifier><language>eng</language><publisher>Tokyo: MYU Scientific Publishing Division</publisher><subject>Amplification ; Analog circuits ; CMOS ; Compensation ; Differential amplifiers ; Digital to analog conversion ; Digital to analog converters ; Electric potential ; Flicker ; Frequency response ; High gain ; Input impedance ; Instruments ; Integrated circuits ; Power efficiency ; Ripples ; Stabilization ; Voltage</subject><ispartof>Sensors and materials, 2021-08, Vol.33 (8), p.2709</ispartof><rights>Copyright MYU Scientific Publishing Division 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,861,27905,27906</link.rule.ids></links><search><creatorcontrib>Heo, Hyunwoo</creatorcontrib><creatorcontrib>Kim, Hyungseup</creatorcontrib><creatorcontrib>You, Donggeun</creatorcontrib><creatorcontrib>Kwon, Yongsu</creatorcontrib><creatorcontrib>Cho, Dong-il “Dan”</creatorcontrib><creatorcontrib>Ko, Hyoungho</creatorcontrib><title>Chopper-stabilized Multipath Instrumentation Amplifier with Output Voltage Offset Compensation Using R-2R Digital-to-Analog Converter</title><title>Sensors and materials</title><description>This paper presents a 3-opamp resistive bridge sensor analog front-end (AFE) integrated circuit (IC) with offset voltage compensation using an R-2R digital-to-analog converter (DAC). The proposed IC is implemented with a 3-opamp instrumentation amplifier (IA) to achieve high gain, high input impedance, and linearity. The two amplifiers in the first stage are multipath amplifiers with a chopper stabilization technique and ripple reduction loop (RRL). The chopper stabilization technique reduces 1/f flicker noise and DC offset, and the RRL mitigates the output ripple voltage resulting from the chopper stabilization technique. The multipath amplifier scheme compensates the notch characteristic in the frequency response caused by the RRL. A fully differential amplifier with a class-AB output stage is used in the second stage to achieve power efficiency. The 12-bit R-2R DAC is implemented to compensate the offset of the second-stage output of the IA. The IA gain can be controlled from 12 to 48 dB using 2-bit and 3-bit programmable feedback resistor arrays in the first and second stages, respectively. The proposed IC is designed with a 0.18 μm complementary metal-oxide-semiconductor (CMOS) process and has an active area of 7.2 mm2. The simulated input-referred noise is 36.7 nV/√Hz at a frequency of 1 Hz and the simulated input offset voltage is 2.2 μV.</description><subject>Amplification</subject><subject>Analog circuits</subject><subject>CMOS</subject><subject>Compensation</subject><subject>Differential amplifiers</subject><subject>Digital to analog conversion</subject><subject>Digital to analog converters</subject><subject>Electric potential</subject><subject>Flicker</subject><subject>Frequency response</subject><subject>High gain</subject><subject>Input impedance</subject><subject>Instruments</subject><subject>Integrated circuits</subject><subject>Power efficiency</subject><subject>Ripples</subject><subject>Stabilization</subject><subject>Voltage</subject><issn>0914-4935</issn><issn>2435-0869</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNotkDtPwzAURi0EEhV0ZbbE7OBn4oxReFVqValQ1shJndRVEgfbAcHO_yalTHf4zr367gHghuCISJ7yu5dsFVFMScSYIGdgRjkTCMs4PQcznBKOeMrEJZh7f8AYEylwTOMZ-Mn3dhi0Qz6o0rTmW-_gamyDGVTYw0Xvgxs73QcVjO1h1g2tqY128NNM8XoMwxjgm22DajRc17XXAea2G3TvTxtbb_oGbhDdwHvTmKBaFCzKetXaZiL7D-2Cdtfgolat1_P_eQW2jw-v-TNarp8WebZEFaMyIKmwKlU5fVZpLqnijBNMacLjlEqpWK1SUcU8pRWpSSLjkuJaVDsuy0pwkSh2BW5Pdwdn30ftQ3Gwo5vK-IKKWEz-EiknKjpRlbPeO10XgzOdcl8FwcWf7WKyXRxtF0fb7Bf5FnN5</recordid><startdate>20210817</startdate><enddate>20210817</enddate><creator>Heo, Hyunwoo</creator><creator>Kim, Hyungseup</creator><creator>You, Donggeun</creator><creator>Kwon, Yongsu</creator><creator>Cho, Dong-il “Dan”</creator><creator>Ko, Hyoungho</creator><general>MYU Scientific Publishing Division</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20210817</creationdate><title>Chopper-stabilized Multipath Instrumentation Amplifier with Output Voltage Offset Compensation Using R-2R Digital-to-Analog Converter</title><author>Heo, Hyunwoo ; Kim, Hyungseup ; You, Donggeun ; Kwon, Yongsu ; Cho, Dong-il “Dan” ; Ko, Hyoungho</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-8a0abab435ce482a43410227469288a3fa95c6492c1f1786b20f5cd48bc5457a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Amplification</topic><topic>Analog circuits</topic><topic>CMOS</topic><topic>Compensation</topic><topic>Differential amplifiers</topic><topic>Digital to analog conversion</topic><topic>Digital to analog converters</topic><topic>Electric potential</topic><topic>Flicker</topic><topic>Frequency response</topic><topic>High gain</topic><topic>Input impedance</topic><topic>Instruments</topic><topic>Integrated circuits</topic><topic>Power efficiency</topic><topic>Ripples</topic><topic>Stabilization</topic><topic>Voltage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Heo, Hyunwoo</creatorcontrib><creatorcontrib>Kim, Hyungseup</creatorcontrib><creatorcontrib>You, Donggeun</creatorcontrib><creatorcontrib>Kwon, Yongsu</creatorcontrib><creatorcontrib>Cho, Dong-il “Dan”</creatorcontrib><creatorcontrib>Ko, Hyoungho</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Sensors and materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Heo, Hyunwoo</au><au>Kim, Hyungseup</au><au>You, Donggeun</au><au>Kwon, Yongsu</au><au>Cho, Dong-il “Dan”</au><au>Ko, Hyoungho</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Chopper-stabilized Multipath Instrumentation Amplifier with Output Voltage Offset Compensation Using R-2R Digital-to-Analog Converter</atitle><jtitle>Sensors and materials</jtitle><date>2021-08-17</date><risdate>2021</risdate><volume>33</volume><issue>8</issue><spage>2709</spage><pages>2709-</pages><issn>0914-4935</issn><eissn>2435-0869</eissn><abstract>This paper presents a 3-opamp resistive bridge sensor analog front-end (AFE) integrated circuit (IC) with offset voltage compensation using an R-2R digital-to-analog converter (DAC). The proposed IC is implemented with a 3-opamp instrumentation amplifier (IA) to achieve high gain, high input impedance, and linearity. The two amplifiers in the first stage are multipath amplifiers with a chopper stabilization technique and ripple reduction loop (RRL). The chopper stabilization technique reduces 1/f flicker noise and DC offset, and the RRL mitigates the output ripple voltage resulting from the chopper stabilization technique. The multipath amplifier scheme compensates the notch characteristic in the frequency response caused by the RRL. A fully differential amplifier with a class-AB output stage is used in the second stage to achieve power efficiency. The 12-bit R-2R DAC is implemented to compensate the offset of the second-stage output of the IA. The IA gain can be controlled from 12 to 48 dB using 2-bit and 3-bit programmable feedback resistor arrays in the first and second stages, respectively. The proposed IC is designed with a 0.18 μm complementary metal-oxide-semiconductor (CMOS) process and has an active area of 7.2 mm2. The simulated input-referred noise is 36.7 nV/√Hz at a frequency of 1 Hz and the simulated input offset voltage is 2.2 μV.</abstract><cop>Tokyo</cop><pub>MYU Scientific Publishing Division</pub><doi>10.18494/SAM.2021.3351</doi><oa>free_for_read</oa></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0914-4935 |
ispartof | Sensors and materials, 2021-08, Vol.33 (8), p.2709 |
issn | 0914-4935 2435-0869 |
language | eng |
recordid | cdi_proquest_journals_2565202788 |
source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
subjects | Amplification Analog circuits CMOS Compensation Differential amplifiers Digital to analog conversion Digital to analog converters Electric potential Flicker Frequency response High gain Input impedance Instruments Integrated circuits Power efficiency Ripples Stabilization Voltage |
title | Chopper-stabilized Multipath Instrumentation Amplifier with Output Voltage Offset Compensation Using R-2R Digital-to-Analog Converter |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-18T22%3A00%3A05IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Chopper-stabilized%20Multipath%20Instrumentation%20Amplifier%20with%20Output%20Voltage%20Offset%20Compensation%20Using%20R-2R%20Digital-to-Analog%20Converter&rft.jtitle=Sensors%20and%20materials&rft.au=Heo,%20Hyunwoo&rft.date=2021-08-17&rft.volume=33&rft.issue=8&rft.spage=2709&rft.pages=2709-&rft.issn=0914-4935&rft.eissn=2435-0869&rft_id=info:doi/10.18494/SAM.2021.3351&rft_dat=%3Cproquest_cross%3E2565202788%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2565202788&rft_id=info:pmid/&rfr_iscdi=true |