Title :
A sigma-delta modulator for bio-applications
Author :
Gong, Cihun-Siyong Alex ; Kai-Wen Yao ; Muh-Tian Shiue ; Yu-Ying Lin ; Yi-Feng Luo ; Long-Xi Chang
Author_Institution :
Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
This paper presents a new concept of sigma-delta modulator (SDM) for biomedical applications. It combines switched-capacitor (SC) and switched-opamp (SOP) techniques. To Avoid signal distortion and nonlinear resistance in implementing the CMOS resistor of the SDM, an approach, replacing SC modulator with SOP modulator and reducing power consumption of the second-stage modulator, is utilized.
Keywords :
CMOS digital integrated circuits; biomedical electronics; biomedical equipment; resistors; sigma-delta modulation; switched current circuits; SDM CMOS resistor; biomedical application; power consumption reduction; second-stage modulator; sigma-delta modulator; switched-capacitor modulator; switched-opamp modulator; CMOS integrated circuits; Immune system; Modulation; Noise; Power demand; Sigma-delta modulation; Switches;
Conference_Titel :
Consumer Electronics (ISCE), 2013 IEEE 17th International Symposium on
Conference_Location :
Hsinchu
Print_ISBN :
978-1-4673-6198-9
DOI :
10.1109/ISCE.2013.6570145
