An improved front end design for bioelectrical signal acquisition

An improved front-end processing circuit for bioelectrical signal acquisition is proposed for high common mode rejection ratio. The proposed circuit consists of three parts, bias voltage divider, ADC process unit and virtual driven-right-leg circuit. Through partial public DC bias circuit and virtua...

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Bibliographic Details
Published in2017 IEEE SENSORS pp. 1 - 3
Main Authors Jianwen Ding, Limin Zhang, Feng Yan, Xiang Li, Jun Wang, Liangzhi Guo
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2017
Subjects
bioelectrical signal
Biomedical measurement
common mode rejection ratio
electrocardiogram watch
Electrocardiography
Electrodes
Frequency measurement
Frequency response
front-end
Legged locomotion
Semiconductor device measurement
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Summary:An improved front-end processing circuit for bioelectrical signal acquisition is proposed for high common mode rejection ratio. The proposed circuit consists of three parts, bias voltage divider, ADC process unit and virtual driven-right-leg circuit. Through partial public DC bias circuit and virtual right leg drive circuit, common mode rejection ratio of the circuit can be improved effectively, as well as the engineering simplification for wearable device development, one electrocardiogram watch is developed, which verifies the the feasibility of the proposed circuit for bioelectrical signal acquisition.
DOI:10.1109/ICSENS.2017.8234003