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Your search keyword '"Laghi, Giacomo"' showing total 14 results
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14 results on '"Laghi, Giacomo"'

14. A Sub-400-nT/ \sqrt \text Hz , 775- \mu \textW , Multi-Loop MEMS Magnetometer With Integrated Readout Electronics.

Author

Minotti, Paolo, Brenna, Stefano, Laghi, Giacomo, Bonfanti, Andrea G., Langfelder, Giacomo, and Lacaita, Andrea L.

Subjects
MAGNETOMETERS, MICROELECTROMECHANICAL systems, INTEGRATED circuit design, LORENTZ force, DETECTORS, ELECTRONIC amplifiers, BANDWIDTHS
Abstract

This paper presents a novel z -axis Lorentz force magnetometer coupled with a low-power readout integrated circuit. The sensor is fabricated using an industrial process, and exploits an Al-on-polysilicon multi-loop architecture that gives a five-fold sensitivity and resolution improvement, useful for off-resonance operation. The integrated readout is based on a differential charge amplifier front-end, and designed to be balanced with the sensor in terms of noise and power consumption. The overall system, including demodulation and filtering stages, shows a programmable full-scale up to ±2.4 mT, limited by the electronics saturation. The bandwidth can be programmed up to 150 Hz for off-resonance operation where a sub-400-nT/ \sqrt \text Hz resolution at 775- \mu \textW power consumption is obtained, including the integrated readout and the Lorentz current. Perspectives on low-consumption driving oscillators for off-resonance mode are finally given. [2015-0139] [ABSTRACT FROM AUTHOR]

Published
2015
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