Integrated Fluxgate Magnetometer for Use in Isolated Current Sensing
This paper presents two integrated magnetic sensor ICs for isolated current measurement that have a fluxgate magnetometer co-integrated along with circuitry on a die. The integrated fluxgate has a sensitivity of 250 V/T and a 500 ksps readout circuit and requires only 5.4 mW for fluxgate excitation,...
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| Veröffentlicht in: | IEEE journal of solid-state circuits 2016-07, Vol.51 (7), p.1684-1694 |
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| container_end_page | 1694 |
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| container_issue | 7 |
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| container_title | IEEE journal of solid-state circuits |
| container_volume | 51 |
| creator | Snoeij, Martijn F. Schaffer, Viola Udayashankar, Sudarshan Ivanov, Mikhail V. |
| description | This paper presents two integrated magnetic sensor ICs for isolated current measurement that have a fluxgate magnetometer co-integrated along with circuitry on a die. The integrated fluxgate has a sensitivity of 250 V/T and a 500 ksps readout circuit and requires only 5.4 mW for fluxgate excitation, which is 20x more power-efficient than the state of the art. The fluxgate magnetometer was used to realize the first fully integrated sensor IC for closed-loop current sensing. It achieves a dynamic range of 112 dB and a nonlinearity below 0.03%. A second realization provides a precision magnetic sensor IC that can be used for open-loop and differential-field current sensing. It features a sensor gain variation of 0.04% (1-sigma), a nonlinearity below 0.2%, a bandwidth of 47 kHz, and a dynamic range of 100 dB. |
| doi_str_mv | 10.1109/JSSC.2016.2554147 |
| format | Article |
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The integrated fluxgate has a sensitivity of 250 V/T and a 500 ksps readout circuit and requires only 5.4 mW for fluxgate excitation, which is 20x more power-efficient than the state of the art. The fluxgate magnetometer was used to realize the first fully integrated sensor IC for closed-loop current sensing. It achieves a dynamic range of 112 dB and a nonlinearity below 0.03%. A second realization provides a precision magnetic sensor IC that can be used for open-loop and differential-field current sensing. 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(IEEE) 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c326t-6d5c5d01e2f0c2076835875c54bcac87ba445862d82706af991cd2e907837a8a3</citedby><cites>FETCH-LOGICAL-c326t-6d5c5d01e2f0c2076835875c54bcac87ba445862d82706af991cd2e907837a8a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7465716$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>315,781,785,797,27926,27927,54760</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/7465716$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Snoeij, Martijn F.</creatorcontrib><creatorcontrib>Schaffer, Viola</creatorcontrib><creatorcontrib>Udayashankar, Sudarshan</creatorcontrib><creatorcontrib>Ivanov, Mikhail V.</creatorcontrib><title>Integrated Fluxgate Magnetometer for Use in Isolated Current Sensing</title><title>IEEE journal of solid-state circuits</title><addtitle>JSSC</addtitle><description>This paper presents two integrated magnetic sensor ICs for isolated current measurement that have a fluxgate magnetometer co-integrated along with circuitry on a die. The integrated fluxgate has a sensitivity of 250 V/T and a 500 ksps readout circuit and requires only 5.4 mW for fluxgate excitation, which is 20x more power-efficient than the state of the art. The fluxgate magnetometer was used to realize the first fully integrated sensor IC for closed-loop current sensing. It achieves a dynamic range of 112 dB and a nonlinearity below 0.03%. A second realization provides a precision magnetic sensor IC that can be used for open-loop and differential-field current sensing. It features a sensor gain variation of 0.04% (1-sigma), a nonlinearity below 0.2%, a bandwidth of 47 kHz, and a dynamic range of 100 dB.</description><subject>Circuits</subject><subject>Current measurement</subject><subject>Current sensing</subject><subject>Detection</subject><subject>Dynamic range</subject><subject>fluxgate</subject><subject>Fluxgate magnetometers</subject><subject>Gain</subject><subject>Magnetic circuits</subject><subject>Magnetic hysteresis</subject><subject>magnetic sensor</subject><subject>Magnetic sensors</subject><subject>magnetometer</subject><subject>Magnetometers</subject><subject>Nonlinearity</subject><subject>Saturation magnetization</subject><subject>sensor readout</subject><subject>Sensors</subject><subject>State of the art</subject><issn>0018-9200</issn><issn>1558-173X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkEtLAzEQgIMoWKs_QLwsePGyNcnmeZRqtVLxUAveQpqdXbZsszXZBf33plY8eJoH3wwzH0KXBE8Iwfr2ebmcTigmYkI5Z4TJIzQinKucyOL9GI0wJirXFONTdBbjJpWMKTJC93PfQx1sD2U2a4fPOmXZi6099N0WeghZ1YVsFSFrfDaPXftDTocQwPfZEnxsfH2OTirbRrj4jWO0mj28TZ_yxevjfHq3yF1BRZ-LkjteYgK0wo5iKVTBlUw9tnbWKbm2jHElaKmoxMJWWhNXUtBYqkJaZYsxujns3YXuY4DYm20THbSt9dAN0RCVni90ohN6_Q_ddEPw6TpDpNZa4SQpUeRAudDFGKAyu9BsbfgyBJu9V7P3avZeza_XNHN1mGkA4I-XTHBJRPENtylyVg</recordid><startdate>201607</startdate><enddate>201607</enddate><creator>Snoeij, Martijn F.</creator><creator>Schaffer, Viola</creator><creator>Udayashankar, Sudarshan</creator><creator>Ivanov, Mikhail V.</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><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>201607</creationdate><title>Integrated Fluxgate Magnetometer for Use in Isolated Current Sensing</title><author>Snoeij, Martijn F. ; Schaffer, Viola ; Udayashankar, Sudarshan ; Ivanov, Mikhail V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c326t-6d5c5d01e2f0c2076835875c54bcac87ba445862d82706af991cd2e907837a8a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Circuits</topic><topic>Current measurement</topic><topic>Current sensing</topic><topic>Detection</topic><topic>Dynamic range</topic><topic>fluxgate</topic><topic>Fluxgate magnetometers</topic><topic>Gain</topic><topic>Magnetic circuits</topic><topic>Magnetic hysteresis</topic><topic>magnetic sensor</topic><topic>Magnetic sensors</topic><topic>magnetometer</topic><topic>Magnetometers</topic><topic>Nonlinearity</topic><topic>Saturation magnetization</topic><topic>sensor readout</topic><topic>Sensors</topic><topic>State of the art</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Snoeij, Martijn F.</creatorcontrib><creatorcontrib>Schaffer, Viola</creatorcontrib><creatorcontrib>Udayashankar, Sudarshan</creatorcontrib><creatorcontrib>Ivanov, Mikhail V.</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 Online</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE journal of solid-state circuits</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Snoeij, Martijn F.</au><au>Schaffer, Viola</au><au>Udayashankar, Sudarshan</au><au>Ivanov, Mikhail V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Integrated Fluxgate Magnetometer for Use in Isolated Current Sensing</atitle><jtitle>IEEE journal of solid-state circuits</jtitle><stitle>JSSC</stitle><date>2016-07</date><risdate>2016</risdate><volume>51</volume><issue>7</issue><spage>1684</spage><epage>1694</epage><pages>1684-1694</pages><issn>0018-9200</issn><eissn>1558-173X</eissn><coden>IJSCBC</coden><abstract>This paper presents two integrated magnetic sensor ICs for isolated current measurement that have a fluxgate magnetometer co-integrated along with circuitry on a die. The integrated fluxgate has a sensitivity of 250 V/T and a 500 ksps readout circuit and requires only 5.4 mW for fluxgate excitation, which is 20x more power-efficient than the state of the art. The fluxgate magnetometer was used to realize the first fully integrated sensor IC for closed-loop current sensing. It achieves a dynamic range of 112 dB and a nonlinearity below 0.03%. A second realization provides a precision magnetic sensor IC that can be used for open-loop and differential-field current sensing. It features a sensor gain variation of 0.04% (1-sigma), a nonlinearity below 0.2%, a bandwidth of 47 kHz, and a dynamic range of 100 dB.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/JSSC.2016.2554147</doi><tpages>11</tpages></addata></record> |
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| ispartof | IEEE journal of solid-state circuits, 2016-07, Vol.51 (7), p.1684-1694 |
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| language | eng |
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| source | IEEE Electronic Library Online |
| subjects | Circuits Current measurement Current sensing Detection Dynamic range fluxgate Fluxgate magnetometers Gain Magnetic circuits Magnetic hysteresis magnetic sensor Magnetic sensors magnetometer Magnetometers Nonlinearity Saturation magnetization sensor readout Sensors State of the art |
| title | Integrated Fluxgate Magnetometer for Use in Isolated Current Sensing |
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