期刊
SOLID-STATE ELECTRONICS
卷 54, 期 12, 页码 1606-1612出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.sse.2010.07.012
关键词
GMR; Spin valve; Electrical current sensors; Integrated circuits; Electric power measurement; Wattmeter
资金
- Ministry of Science and Technology Spain [HP2003/0123]
- Valencian Regional Government [GV05/150]
- Junta de Andalucia [P08-TIC-3580]
- Ministry of Science and Innovation Spain [ENE2008-06588-C04-04]
- European Regional Development Fund
An analytical compact model for giant magnetoresistance (GMR) based current sensors has been developed Different spin-valve based full Wheatstone bridge sensors with the current straps integrated in the chip have been considered These devices have been experimentally characterized in order to extract the model parameters In this respect we have focused on the sensors linear operation regime The model which allows the individual description of the magnetoresistive elements has been implemented in a circuit simulator by means of a behavioral description language Verilog-A We also propose the use of the devices in a direct power measurement application at the integrated circuit (IC) level by taking advantage of their multiplicative properties A simple circuit is suggested and analyzed in depth by means of the tested model showing promising results regarding the application range (C) 2010 Elsevier Ltd All rights reserved
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