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 |