A novel bandgap reference for minimizing current-mirror mismatch
A novel bandgap reference for minimizing current-mirror mismatch is presented. In the proposed circuit, the small-signal current variations in the two current paths are self-compensated while in the conventional bandgap core they are multiplied. As a result, error caused by current-mirror mismatch h...
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| creator | Li, Sizhen Zou, Xuecheng Yu, Kai Zhang, Hao Lin, Shuangxi |
| description | A novel bandgap reference for minimizing current-mirror mismatch is presented. In the proposed circuit, the small-signal current variations in the two current paths are self-compensated while in the conventional bandgap core they are multiplied. As a result, error caused by current-mirror mismatch has been much reduced in the proposed circuit. Moreover, the voltage variations caused by temperature and supply voltage changes which make the small-signal current in the bandgap core vary can also be minimized. Based on the 0.6 um BiCMOS process technology, the error caused by current-mirror mismatch has been reduced by about 50 times in the proposed bandgap core and the complete circuit achieves a low temperature coefficient of 2.3 ppm/°C and a high power supply rejection ratio (PSRR) of 72 db without any PSRR boosting technique. On typical working conditions, the proposed circuit consumes only a supply current of 3.6 uA. |
| doi_str_mv | 10.1109/ICSICT.2008.4734901 |
| format | Conference Proceeding |
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In the proposed circuit, the small-signal current variations in the two current paths are self-compensated while in the conventional bandgap core they are multiplied. As a result, error caused by current-mirror mismatch has been much reduced in the proposed circuit. Moreover, the voltage variations caused by temperature and supply voltage changes which make the small-signal current in the bandgap core vary can also be minimized. Based on the 0.6 um BiCMOS process technology, the error caused by current-mirror mismatch has been reduced by about 50 times in the proposed bandgap core and the complete circuit achieves a low temperature coefficient of 2.3 ppm/°C and a high power supply rejection ratio (PSRR) of 72 db without any PSRR boosting technique. On typical working conditions, the proposed circuit consumes only a supply current of 3.6 uA.</description><identifier>ISBN: 9781424421855</identifier><identifier>ISBN: 1424421853</identifier><identifier>EISBN: 9781424421862</identifier><identifier>EISBN: 1424421861</identifier><identifier>DOI: 10.1109/ICSICT.2008.4734901</identifier><identifier>LCCN: 2008901172</identifier><language>eng</language><publisher>IEEE</publisher><subject>BiCMOS integrated circuits ; Boosting ; Integrated circuit modeling ; Mirrors ; Operational amplifiers ; Photonic band gap ; Power supplies ; Resistors ; Temperature ; Voltage</subject><ispartof>2008 9th International Conference on Solid-State and Integrated-Circuit Technology, 2008, p.1781-1784</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/4734901$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,780,784,789,790,2058,27925,54920</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/4734901$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Li, Sizhen</creatorcontrib><creatorcontrib>Zou, Xuecheng</creatorcontrib><creatorcontrib>Yu, Kai</creatorcontrib><creatorcontrib>Zhang, Hao</creatorcontrib><creatorcontrib>Lin, Shuangxi</creatorcontrib><title>A novel bandgap reference for minimizing current-mirror mismatch</title><title>2008 9th International Conference on Solid-State and Integrated-Circuit Technology</title><addtitle>ICSICT</addtitle><description>A novel bandgap reference for minimizing current-mirror mismatch is presented. In the proposed circuit, the small-signal current variations in the two current paths are self-compensated while in the conventional bandgap core they are multiplied. As a result, error caused by current-mirror mismatch has been much reduced in the proposed circuit. Moreover, the voltage variations caused by temperature and supply voltage changes which make the small-signal current in the bandgap core vary can also be minimized. Based on the 0.6 um BiCMOS process technology, the error caused by current-mirror mismatch has been reduced by about 50 times in the proposed bandgap core and the complete circuit achieves a low temperature coefficient of 2.3 ppm/°C and a high power supply rejection ratio (PSRR) of 72 db without any PSRR boosting technique. On typical working conditions, the proposed circuit consumes only a supply current of 3.6 uA.</description><subject>BiCMOS integrated circuits</subject><subject>Boosting</subject><subject>Integrated circuit modeling</subject><subject>Mirrors</subject><subject>Operational amplifiers</subject><subject>Photonic band gap</subject><subject>Power supplies</subject><subject>Resistors</subject><subject>Temperature</subject><subject>Voltage</subject><isbn>9781424421855</isbn><isbn>1424421853</isbn><isbn>9781424421862</isbn><isbn>1424421861</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2008</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNpVUEtLw0AYXJGCWvMLetk_kLjvzd4sQW2g4MHcyz6-rStNWjZR0F9v1F6cyzAP5jAIrSipKCXmrm1e2qarGCF1JTQXhtALVBhdU8GEYLRW7PKflnKBbn7qc5NqdoWKcXwjM4TkqpbX6H6Nh-MHHLCzQ9jbE84QIcPgAcdjxn0aUp--0rDH_j3P_lT2KeffZOzt5F9v0SLawwjFmZeoe3zomk25fX5qm_W2TIZMZeDCMkNszawyTvLAIGpnlPM8gArCGsEj1T46w6VQzOsgNVBXe-mZopQv0epvNgHA7pRTb_Pn7vwB_wZeYU31</recordid><startdate>200810</startdate><enddate>200810</enddate><creator>Li, Sizhen</creator><creator>Zou, Xuecheng</creator><creator>Yu, Kai</creator><creator>Zhang, Hao</creator><creator>Lin, Shuangxi</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>200810</creationdate><title>A novel bandgap reference for minimizing current-mirror mismatch</title><author>Li, Sizhen ; Zou, Xuecheng ; Yu, Kai ; Zhang, Hao ; Lin, Shuangxi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i90t-d34a290a82a69b53d2ef7b96bc3de6d4a943f17cfb935462c7d57e1b8c5c26113</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2008</creationdate><topic>BiCMOS integrated circuits</topic><topic>Boosting</topic><topic>Integrated circuit modeling</topic><topic>Mirrors</topic><topic>Operational amplifiers</topic><topic>Photonic band gap</topic><topic>Power supplies</topic><topic>Resistors</topic><topic>Temperature</topic><topic>Voltage</topic><toplevel>online_resources</toplevel><creatorcontrib>Li, Sizhen</creatorcontrib><creatorcontrib>Zou, Xuecheng</creatorcontrib><creatorcontrib>Yu, Kai</creatorcontrib><creatorcontrib>Zhang, Hao</creatorcontrib><creatorcontrib>Lin, Shuangxi</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Li, Sizhen</au><au>Zou, Xuecheng</au><au>Yu, Kai</au><au>Zhang, Hao</au><au>Lin, Shuangxi</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>A novel bandgap reference for minimizing current-mirror mismatch</atitle><btitle>2008 9th International Conference on Solid-State and Integrated-Circuit Technology</btitle><stitle>ICSICT</stitle><date>2008-10</date><risdate>2008</risdate><spage>1781</spage><epage>1784</epage><pages>1781-1784</pages><isbn>9781424421855</isbn><isbn>1424421853</isbn><eisbn>9781424421862</eisbn><eisbn>1424421861</eisbn><abstract>A novel bandgap reference for minimizing current-mirror mismatch is presented. In the proposed circuit, the small-signal current variations in the two current paths are self-compensated while in the conventional bandgap core they are multiplied. As a result, error caused by current-mirror mismatch has been much reduced in the proposed circuit. Moreover, the voltage variations caused by temperature and supply voltage changes which make the small-signal current in the bandgap core vary can also be minimized. Based on the 0.6 um BiCMOS process technology, the error caused by current-mirror mismatch has been reduced by about 50 times in the proposed bandgap core and the complete circuit achieves a low temperature coefficient of 2.3 ppm/°C and a high power supply rejection ratio (PSRR) of 72 db without any PSRR boosting technique. On typical working conditions, the proposed circuit consumes only a supply current of 3.6 uA.</abstract><pub>IEEE</pub><doi>10.1109/ICSICT.2008.4734901</doi><tpages>4</tpages></addata></record> |
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| ispartof | 2008 9th International Conference on Solid-State and Integrated-Circuit Technology, 2008, p.1781-1784 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | BiCMOS integrated circuits Boosting Integrated circuit modeling Mirrors Operational amplifiers Photonic band gap Power supplies Resistors Temperature Voltage |
| title | A novel bandgap reference for minimizing current-mirror mismatch |
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