Title :
Integrated Hall sensor array microsystem
Author :
Frounchi, J. ; Demierre, M. ; Randjelovic, Z. ; Popovic, R.S.
Author_Institution :
Swiss Federal Inst. of Technol., Lausanne, Switzerland
Abstract :
A CMOS microsystem consists of an array of miniature integrated Hall sensors and dynamic offset cancellation interface electronics. It has 86 V/Tesla magnetic sensitivity, 160 μTesla magnetic offset field, and 0.8 μTesla/√Hz noise density while consuming 2.3 mA from a single 5 V supply. It measures the Earth´s magnetic field with 5% precision.
Keywords :
CMOS integrated circuits; Hall effect transducers; arrays; magnetic field measurement; magnetic sensors; readout electronics; 2.3 mA; 5 V; CMOS microsystem; Earth magnetic field measurement; Hall magnetic sensors; SC synchronous demodulator; dynamic offset cancellation interface electronics; integrated Hall sensor array microsystem; offset voltages; CMOS technology; Circuits; Clocks; Frequency; Magnetic field measurement; Magnetic noise; Magnetic sensors; Preamplifiers; Sensor arrays; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2001. Digest of Technical Papers. ISSCC. 2001 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-6608-5
DOI :
10.1109/ISSCC.2001.912624
