Live demonstration: The implementation of CMOS biopotential signal recording systems

Wei Ming Chen*, Chung-Yu Wu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this demonstration, a CMOS biopotential signal recording system for electrocardiogram (ECG) and electroencephalogram (EEG) is presented. The system includes two individual chip modules of a multi-channel analog frond-end amplifier (AFEA) and a low-power successive approximation register analog-to-digital converter (SAR ADC). The AFEA consists of eight chopper-stabilized pre-amplifiers, an 8-to-1 analog multiplexer, and a programmable gain amplifier (PGA). The two chips are designed and fabricated by TSMC 0.18-um CMOS technology. The fabricated AFEA chip provides 40 to 74.1-dB tunable gain with 1-kHz to 7-kHz tunable low-pass cutoff frequency and 0.9-μVrm input referred noise. The measured SNDR of the SAR ADC is 56.68dB (53.89 dB) for Fin=10 Hz (7 kHz) with a power dissipation per channel of 2.95μW (5.82μW). The proposed system will be applied to different applications and demonstrated through internet monitoring and on-site demonstration.

Original languageEnglish
Title of host publication2012 IEEE Biomedical Circuits and Systems Conference
Subtitle of host publicationIntelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Conference Publications
Pages83-83
Number of pages1
DOIs
StatePublished - 1 Dec 2012
Event2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Hsinchu, Taiwan
Duration: 28 Nov 201230 Nov 2012

Publication series

Name2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Conference Publications

Conference

Conference2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012
CountryTaiwan
CityHsinchu
Period28/11/1230/11/12

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