A low-voltage low-power front-end for wearable EEG systems

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Title:	A low-voltage low-power front-end for wearable EEG systems
Authors:	Yates, D Lopez-Morillo, E Carvajal, RG Ramirez-Angulo, J Rodriguez-Villegas, E
Item Type:	Conference Paper
Abstract:	A low-voltage and low-power front-end for miniaturized, wearable EEG systems is presented. The instrumentation amplifier, which removes the electrode drift and conditions the signal for a 10-bit A/D converter, combines a chopping strategy with quasi-FGMOS (QFG) transistors to minimize low frequency noise whilst enabling operation at 1 V supply. QFG devices are also key to the A/D converter operating at 1.2 V with 70dB of SNR and an oversampling ratio of 64. The whole system consumes less than 2uW at 1.2V.
Content Version:	Published version
Issue Date:	31-Dec-2007
URI:	http://hdl.handle.net/10044/1/6110
Publisher Link:	http://dx.doi.org/10.1109/IEMBS.2007.4353533
ISBN:	9781424407873
ISSN:	1557-170X
Presented At:	29th Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society
Start Page:	5282
End Page:	5285
Copyright Statement:	© 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Conference Location:	Lyon, France
Appears in Collections:	Circuits and Systems