A CMOS magnetic sensor based on synchronous sampling function

Author

Liu, Tong ; Zhu, Da-Zhong ; Guo, Qing

Author_Institution

Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou

fYear

2006

fDate

23-26 Oct. 2006

Firstpage

655

Lastpage

657

Abstract

A CMOS magnetic sensor based on synchronous sampling function is presented in this paper. The integrated circuit is designed and fabricated with a 0.6 mum standard CMOS process, and the sector split-drain MAGFET is used as the sensing element to implement the correlated double sampling system. The sensor realizes the measurement of magnetic field as well as the noise-shaping through the synchronous sampling functioning modes: the measurement mode and the reference mode. The sensitivity of the magnetic sensor integrated circuit is 2.62V/T at the working frequency of 20 kHz

Keywords

CMOS integrated circuits; integrated circuit design; magnetic field measurement; magnetic sensors; 0.6 micron; 20 kHz; CMOS magnetic sensor; integrated circuit design; integrated circuit fabrication; magnetic field measurement; sector split-drain MAGFET; synchronous sampling function; CMOS integrated circuits; CMOS process; Coupling circuits; Integrated circuit measurements; Magnetic circuits; Magnetic field measurement; Magnetic sensors; Operational amplifiers; Sampling methods; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on

Conference_Location

Shanghai

Print_ISBN

1-4244-0160-7

Electronic_ISBN

1-4244-0161-5

Type

conf

DOI

10.1109/ICSICT.2006.306427

Filename

4098197