Title :
A CMOS 2D Micro-Fluxgate Earth Magnetic Field Sensor with Digital Output
Author :
Baschirotto, Andrea ; Dallago, Enrico ; Ferragina, Vincenzo ; Ferri, Massimo ; Grassi, Marco ; Malcovati, Piero ; Marchesi, Marco ; Melissano, Enrico ; Morelli, Marco ; Rossini, Andrea ; Ruzza, Stefano ; Siciliano, Pietro ; Venchi, Giuseppe
Author_Institution :
Lecce Univ.
Abstract :
A complete CMOS integrated microsystem for detecting the direction of the Earth´s magnetic field (whose full-scale value is on the order of 60muT), realized with the micromodule approach, including both sensor and electronic interface circuit, achieves 4deg accuracy on the measured angle and provides a digital output. The system response is linear in the range of plusmn60muT with a maximum non-linearity error of about 3% of full-scale.
Keywords :
CMOS integrated circuits; fluxgate magnetometers; geomagnetism; magnetic field measurement; magnetic sensors; microsensors; 2D microfluxgate sensor; 60 muT; CMOS integrated microsystem; Earth magnetic field sensor; electronic interface circuit; micromodule approach; nonlinearity error; CMOS process; Coils; Earth; Intelligent sensors; Magnetic circuits; Magnetic cores; Magnetic field measurement; Magnetic fields; Magnetic sensors; Signal processing;
Conference_Titel :
Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0853-9
Electronic_ISBN :
0193-6530
DOI :
10.1109/ISSCC.2007.373458
