A Bioimpedance Sensing Interface IC With Current Matching and Common-Mode Suppressing Loop for Wearable Health Monitoring
This letter presents a bioimpedance (Bio-Z) sensing interface IC with a current matching and common-mode suppressing (CMCS) loop for long-term health monitoring applications. The CMCS loop eliminates the mismatch between the source and sink stimulation currents of the current generator (CG), while r...
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| Veröffentlicht in: | IEEE sensors letters 2024-10, Vol.8 (10), p.1-4 |
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| container_title | IEEE sensors letters |
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| creator | Su, Risheng Zhu, Longbin Wang, Wenjie Zhou, Yang Zheng, Jianan Zhu, Zhengtao Luo, Fan Xie, Siyuan Li, Jihong Zhou, Zhijun Meng, Fanyi Wang, Keping |
| description | This letter presents a bioimpedance (Bio-Z) sensing interface IC with a current matching and common-mode suppressing (CMCS) loop for long-term health monitoring applications. The CMCS loop eliminates the mismatch between the source and sink stimulation currents of the current generator (CG), while reducing the area of the CG by half. Furthermore, the CMCS loop reuses the common-mode feedback loop of the Bio-Z instrumentation amplifier to substantially enhance the common-mode rejection ratio (CMRR) of the interface with reduced power consumption and area overhead. The proposed Bio-Z interface is designed in 130-nm CMOS technology. By employing the CMCS loop, it achieves a CMRR of 127 dB, exhibits a 3.84-mΩ/√Hz input-referred impedance noise, occupies an area of 0.07 mm 2 , and consumes a power of 10.4 µW for the readout front end and 12.9-122.7 µW for the CG. |
| doi_str_mv | 10.1109/LSENS.2024.3457614 |
| format | Article |
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The CMCS loop eliminates the mismatch between the source and sink stimulation currents of the current generator (CG), while reducing the area of the CG by half. Furthermore, the CMCS loop reuses the common-mode feedback loop of the Bio-Z instrumentation amplifier to substantially enhance the common-mode rejection ratio (CMRR) of the interface with reduced power consumption and area overhead. The proposed Bio-Z interface is designed in 130-nm CMOS technology. By employing the CMCS loop, it achieves a CMRR of 127 dB, exhibits a 3.84-mΩ/√Hz input-referred impedance noise, occupies an area of 0.07 mm 2 , and consumes a power of 10.4 µW for the readout front end and 12.9-122.7 µW for the CG.</description><identifier>ISSN: 2475-1472</identifier><identifier>EISSN: 2475-1472</identifier><identifier>DOI: 10.1109/LSENS.2024.3457614</identifier><identifier>CODEN: ISLECD</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>bioimpedance (Bio-Z) sensing ; Chemical and biological sensors ; common-mode feedback (CMFB) ; common-mode rejection ratio (CMRR) ; current generator (CG) ; current matching and common-mode suppressing (CMCS) ; current mismatch ; Electrodes ; Feedback loops ; Generators ; Impedance ; instrumentation amplifier (IA) ; low power ; Matching ; Noise ; Power demand ; Resistors ; Sensors</subject><ispartof>IEEE sensors letters, 2024-10, Vol.8 (10), p.1-4</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2024</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c177t-79461d05e82a992335901a6f1cb8b569be3a29800ea722113ee52bdb1dd4a89d3</cites><orcidid>0000-0002-2549-6589 ; 0009-0003-2118-7986 ; 0000-0003-0989-3119 ; 0009-0005-4330-7736 ; 0009-0000-7821-6088 ; 0009-0000-3912-0868 ; 0009-0008-8571-9861 ; 0000-0003-3287-9147 ; 0009-0000-5659-7086</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/10670306$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,778,782,794,27907,27908,54741</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/10670306$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Su, Risheng</creatorcontrib><creatorcontrib>Zhu, Longbin</creatorcontrib><creatorcontrib>Wang, Wenjie</creatorcontrib><creatorcontrib>Zhou, Yang</creatorcontrib><creatorcontrib>Zheng, Jianan</creatorcontrib><creatorcontrib>Zhu, Zhengtao</creatorcontrib><creatorcontrib>Luo, Fan</creatorcontrib><creatorcontrib>Xie, Siyuan</creatorcontrib><creatorcontrib>Li, Jihong</creatorcontrib><creatorcontrib>Zhou, Zhijun</creatorcontrib><creatorcontrib>Meng, Fanyi</creatorcontrib><creatorcontrib>Wang, Keping</creatorcontrib><title>A Bioimpedance Sensing Interface IC With Current Matching and Common-Mode Suppressing Loop for Wearable Health Monitoring</title><title>IEEE sensors letters</title><addtitle>LSENS</addtitle><description>This letter presents a bioimpedance (Bio-Z) sensing interface IC with a current matching and common-mode suppressing (CMCS) loop for long-term health monitoring applications. The CMCS loop eliminates the mismatch between the source and sink stimulation currents of the current generator (CG), while reducing the area of the CG by half. Furthermore, the CMCS loop reuses the common-mode feedback loop of the Bio-Z instrumentation amplifier to substantially enhance the common-mode rejection ratio (CMRR) of the interface with reduced power consumption and area overhead. The proposed Bio-Z interface is designed in 130-nm CMOS technology. By employing the CMCS loop, it achieves a CMRR of 127 dB, exhibits a 3.84-mΩ/√Hz input-referred impedance noise, occupies an area of 0.07 mm 2 , and consumes a power of 10.4 µW for the readout front end and 12.9-122.7 µW for the CG.</description><subject>bioimpedance (Bio-Z) sensing</subject><subject>Chemical and biological sensors</subject><subject>common-mode feedback (CMFB)</subject><subject>common-mode rejection ratio (CMRR)</subject><subject>current generator (CG)</subject><subject>current matching and common-mode suppressing (CMCS)</subject><subject>current mismatch</subject><subject>Electrodes</subject><subject>Feedback loops</subject><subject>Generators</subject><subject>Impedance</subject><subject>instrumentation amplifier (IA)</subject><subject>low power</subject><subject>Matching</subject><subject>Noise</subject><subject>Power demand</subject><subject>Resistors</subject><subject>Sensors</subject><issn>2475-1472</issn><issn>2475-1472</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkD1PwzAQhiMEEhX0DyAGS8wp_kocjyUqtFIKQ0EdLSe50FSNHZxk6L_HaTt0utPpfd6TniB4InhGCJav2WbxuZlRTPmM8UjEhN8EE8pFFBIu6O3Vfh9Mu26PMSYJFZjhSXCco7fa1k0LpTYFoA2Yrja_aGV6cJX2l1WKtnW_Q-ngHJgerXVf7MaINiVKbdNYE65t6dGhbR10JzyztkWVdWgL2un8AGgJ-uBb1tbUvXU-8xjcVfrQwfQyH4Kf98V3ugyzr49VOs_CggjRh0LymJQ4goRqKSljkcRExxUp8iSPYpkD01QmGIMWlBLCACKalzkpS64TWbKH4OXc2zr7N0DXq70dnPEvFfP6eMwoJj5Fz6nC2a5zUKnW1Y12R0WwGi2rk2U1WlYXyx56PkM1AFwB8eg2Zv9NOHiW</recordid><startdate>20241001</startdate><enddate>20241001</enddate><creator>Su, Risheng</creator><creator>Zhu, Longbin</creator><creator>Wang, Wenjie</creator><creator>Zhou, Yang</creator><creator>Zheng, Jianan</creator><creator>Zhu, Zhengtao</creator><creator>Luo, Fan</creator><creator>Xie, Siyuan</creator><creator>Li, Jihong</creator><creator>Zhou, Zhijun</creator><creator>Meng, Fanyi</creator><creator>Wang, Keping</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-2549-6589</orcidid><orcidid>https://orcid.org/0009-0003-2118-7986</orcidid><orcidid>https://orcid.org/0000-0003-0989-3119</orcidid><orcidid>https://orcid.org/0009-0005-4330-7736</orcidid><orcidid>https://orcid.org/0009-0000-7821-6088</orcidid><orcidid>https://orcid.org/0009-0000-3912-0868</orcidid><orcidid>https://orcid.org/0009-0008-8571-9861</orcidid><orcidid>https://orcid.org/0000-0003-3287-9147</orcidid><orcidid>https://orcid.org/0009-0000-5659-7086</orcidid></search><sort><creationdate>20241001</creationdate><title>A Bioimpedance Sensing Interface IC With Current Matching and Common-Mode Suppressing Loop for Wearable Health Monitoring</title><author>Su, Risheng ; Zhu, Longbin ; Wang, Wenjie ; Zhou, Yang ; Zheng, Jianan ; Zhu, Zhengtao ; Luo, Fan ; Xie, Siyuan ; Li, Jihong ; Zhou, Zhijun ; Meng, Fanyi ; Wang, Keping</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c177t-79461d05e82a992335901a6f1cb8b569be3a29800ea722113ee52bdb1dd4a89d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>bioimpedance (Bio-Z) sensing</topic><topic>Chemical and biological sensors</topic><topic>common-mode feedback (CMFB)</topic><topic>common-mode rejection ratio (CMRR)</topic><topic>current generator (CG)</topic><topic>current matching and common-mode suppressing (CMCS)</topic><topic>current mismatch</topic><topic>Electrodes</topic><topic>Feedback loops</topic><topic>Generators</topic><topic>Impedance</topic><topic>instrumentation amplifier (IA)</topic><topic>low power</topic><topic>Matching</topic><topic>Noise</topic><topic>Power demand</topic><topic>Resistors</topic><topic>Sensors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Su, Risheng</creatorcontrib><creatorcontrib>Zhu, Longbin</creatorcontrib><creatorcontrib>Wang, Wenjie</creatorcontrib><creatorcontrib>Zhou, Yang</creatorcontrib><creatorcontrib>Zheng, Jianan</creatorcontrib><creatorcontrib>Zhu, Zhengtao</creatorcontrib><creatorcontrib>Luo, Fan</creatorcontrib><creatorcontrib>Xie, Siyuan</creatorcontrib><creatorcontrib>Li, Jihong</creatorcontrib><creatorcontrib>Zhou, Zhijun</creatorcontrib><creatorcontrib>Meng, Fanyi</creatorcontrib><creatorcontrib>Wang, Keping</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE sensors letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Su, Risheng</au><au>Zhu, Longbin</au><au>Wang, Wenjie</au><au>Zhou, Yang</au><au>Zheng, Jianan</au><au>Zhu, Zhengtao</au><au>Luo, Fan</au><au>Xie, Siyuan</au><au>Li, Jihong</au><au>Zhou, Zhijun</au><au>Meng, Fanyi</au><au>Wang, Keping</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Bioimpedance Sensing Interface IC With Current Matching and Common-Mode Suppressing Loop for Wearable Health Monitoring</atitle><jtitle>IEEE sensors letters</jtitle><stitle>LSENS</stitle><date>2024-10-01</date><risdate>2024</risdate><volume>8</volume><issue>10</issue><spage>1</spage><epage>4</epage><pages>1-4</pages><issn>2475-1472</issn><eissn>2475-1472</eissn><coden>ISLECD</coden><abstract>This letter presents a bioimpedance (Bio-Z) sensing interface IC with a current matching and common-mode suppressing (CMCS) loop for long-term health monitoring applications. The CMCS loop eliminates the mismatch between the source and sink stimulation currents of the current generator (CG), while reducing the area of the CG by half. Furthermore, the CMCS loop reuses the common-mode feedback loop of the Bio-Z instrumentation amplifier to substantially enhance the common-mode rejection ratio (CMRR) of the interface with reduced power consumption and area overhead. The proposed Bio-Z interface is designed in 130-nm CMOS technology. By employing the CMCS loop, it achieves a CMRR of 127 dB, exhibits a 3.84-mΩ/√Hz input-referred impedance noise, occupies an area of 0.07 mm 2 , and consumes a power of 10.4 µW for the readout front end and 12.9-122.7 µW for the CG.</abstract><cop>Piscataway</cop><pub>IEEE</pub><doi>10.1109/LSENS.2024.3457614</doi><tpages>4</tpages><orcidid>https://orcid.org/0000-0002-2549-6589</orcidid><orcidid>https://orcid.org/0009-0003-2118-7986</orcidid><orcidid>https://orcid.org/0000-0003-0989-3119</orcidid><orcidid>https://orcid.org/0009-0005-4330-7736</orcidid><orcidid>https://orcid.org/0009-0000-7821-6088</orcidid><orcidid>https://orcid.org/0009-0000-3912-0868</orcidid><orcidid>https://orcid.org/0009-0008-8571-9861</orcidid><orcidid>https://orcid.org/0000-0003-3287-9147</orcidid><orcidid>https://orcid.org/0009-0000-5659-7086</orcidid></addata></record> |
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| subjects | bioimpedance (Bio-Z) sensing Chemical and biological sensors common-mode feedback (CMFB) common-mode rejection ratio (CMRR) current generator (CG) current matching and common-mode suppressing (CMCS) current mismatch Electrodes Feedback loops Generators Impedance instrumentation amplifier (IA) low power Matching Noise Power demand Resistors Sensors |
| title | A Bioimpedance Sensing Interface IC With Current Matching and Common-Mode Suppressing Loop for Wearable Health Monitoring |
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