A current-mode CMOS integrated microsystem for current spinning magnetic hall sensors

A magnetic Hall sensor working in the current-mode is presented. The proposed sensing device is composed by two Hall plates able to provide a differential current at the output nodes. The sensor, fabricated in a standard 0.18-μm CMOS technology, uses the spinning-current technique to compensate for...

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Bibliographic Details
Published in2014 IEEE International Symposium on Circuits and Systems (ISCAS) pp. 678 - 681
Main Authors Heidari, Hadi, Bonizzoni, Edoardo, Gatti, Umberto, Maloberti, Franco
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2014
Subjects
CMOS integrated circuits
CMOS technology
Current measurement
Magnetic sensors
Sensitivity
Spinning
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Summary:A magnetic Hall sensor working in the current-mode is presented. The proposed sensing device is composed by two Hall plates able to provide a differential current at the output nodes. The sensor, fabricated in a standard 0.18-μm CMOS technology, uses the spinning-current technique to compensate for the offset and obtains a sensitivity I Hall /(B⊥I bias ) better than 0.02 T -1 for magnetic fields ranging from 0 to 10 mT.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2014.6865226