標題: A Low-Power Current-Mode Front-End Acquisition System for Biopotential Signal Recording
作者: Chen, Wei-Ming
Kuo, Liang-Ting
Wu, Chung-Yu
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 2012
摘要: In this paper, a new current-mode front-end amplifier for biopotential signal recording system is proposed. A current-mode preamplifier incorporates with an active feedback loop to bypass any dc current generated by tissues is designed as the first stage. A programmable gain stage and a current-mode filter are designed to adjust both gain and the low-pass cutoff frequency, respectively. The current-mode front-end amplifier is designed and fabricated in 0.18-mu m CMOS technology. The measured maximum current gain is 55.9 dB. The high-pass cutoff frequency can achieve as low as 0.3Hz and the low-pass cutoff frequency can be adjusted from 1 KHz to 10 KHz. The measured input-referred noise is 153 fA/ root Hz, and the power consumption is 13 mu W at 1-V power supply.
URI: http://hdl.handle.net/11536/21558
ISBN: 978-1-4673-0219-7
ISSN: 0271-4302
期刊: 2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012)
起始頁: 842
結束頁: 845
顯示於類別:會議論文