NDLI: A two-electrode 2.88nJ/conversion biopotential acquisition system for portable healthcare device

Content Provider	IEEE Xplore Digital Library
Author	Long Yan Namjun Cho Yoo, J. Binhee Kim Hoi-Jun Yoo
Copyright Year	2008
Description	Author affiliation: Dept. of EECS, Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon (Long Yan; Namjun Cho; Yoo, J.; Binhee Kim; Hoi-Jun Yoo)
Abstract	A 2.88 nJ/Conversion low energy biopotential acquisition system is designed for portable healthcare device. Two dry copper contact electrodes with 1.2-cm diameter are used to easily interface between skin and healthcare device. Chopping technique is adopted at readout front end to obtain thermal noise floor of 1.3 uVrms over 0.5~200 Hz and CMRR over 100 dB to mitigate common-mode body potential induced from AC power line. A 4-stage gain control and band selection blocks are integrated to digitally calibrate for different types of biomedical signal and an 8-bit synchronous successive approximation register (SAR) A/D is used to digitize sensed biopotentials. A test chip is implemented in 0.18 um, 1.8 V supply CMOS technology and successively verified by readout ECG signal with two electrodes contact at chest of body with separating 6 cm.
Starting Page	329
Ending Page	332
File Size	425316
Page Count	4
File Format	PDF
ISBN	9781424426041
DOI	10.1109/ASSCC.2008.4708794
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-03
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Medical services Copper Skin Biomedical electrodes Impedance Electromagnetic interference CMOS technology Electrocardiography Biomedical measurements Instruments
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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