Title :
A current-mode CMOS integrated microsystem for current spinning magnetic hall sensors
Author :
Heidari, Hadi ; Bonizzoni, Edoardo ; Gatti, Umberto ; Maloberti, Franco
Author_Institution :
Dept. of Electr., Comput. & Biomed. Eng., Univ. of Pavia, Pavia, Italy
Abstract :
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 IHall/(B⊥Ibias) better than 0.02 T-1 for magnetic fields ranging from 0 to 10 mT.
Keywords :
CMOS integrated circuits; Hall effect transducers; current-mode circuits; detector circuits; magnetic sensors; Hall plate; current mode CMOS integrated microsystem; current spinning magnetic Hall sensors; magnetic Hall sensor working; magnetic flux density 0 mT to 10 mT; size 0.18 mum; spinning current technique; CMOS integrated circuits; CMOS technology; Current measurement; Magnetic sensors; Sensitivity; Spinning;
Conference_Titel :
Circuits and Systems (ISCAS), 2014 IEEE International Symposium on
Conference_Location :
Melbourne VIC
Print_ISBN :
978-1-4799-3431-7
DOI :
10.1109/ISCAS.2014.6865226
