Energy-efficient low-noise 16-channel analog-front-end circuit for bio-potential acquisition

Shang Lin Wu, Po-Tsang Huang, Teng Chieh Huang, Kuan-Neng Chen, Jin-Chern Chiou, Kuo Hua Chen, Chi Tsung Chiu, Ho Ming Tong, Ching Te Chuang, Wei Hwang

研究成果: Conference contribution同行評審

4 引文 斯高帕斯(Scopus)

摘要

In this paper, an energy-efficient and low-noise 16-channel analog front-end (AFE) circuitry is proposed for acquisition of electrophysiological signals. This fully integrated front-end circuit comprises two differential difference amplifiers (DDAs) and DC offset rejection components. Additionally, the DDA is designed using a double input Gm-stage and a class-AB output for achieving high common-mode rejection ratio (CMRR), low-noise and energy efficiency. The 16-channel AFE with analog-to-digital converters (ADCs) is implemented in TSMC 0.18μm CMOS process. The measurement results show that the AFE can realize 60.3dB gain with only 20.67μW for each channel. The bandwidth of the AFE is from 2.32Hz to 6.61kHz. Furthermore, the total input referred noise and noise efficiency factor (NEF) are 0.826μVrms and 2.78 only within the target frequency range of 0.1Hz to kHz, respectively.

原文English
主出版物標題Technical Papers of 2014 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2014
發行者IEEE Computer Society
ISBN(列印)9781479927760
DOIs
出版狀態Published - 1 1月 2014
事件2014 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2014 - Hsinchu, Taiwan
持續時間: 28 4月 201430 4月 2014

出版系列

名字Technical Papers of 2014 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2014

Conference

Conference2014 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2014
國家/地區Taiwan
城市Hsinchu
期間28/04/1430/04/14

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