A 1V Low Power Second-Order Delta-Sigma Modulator for Biomedical Signal Applicaion

被引:0
|
作者
Hsu, Chih-Han
Tang, Kea-Tiong
机构
来源
2013 35TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC) | 2013年
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中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
This paper presents the design and implementation of a low-power delta-sigma modulator for biomedical application with a standard 90nm CMOS technology. The delta-sigma architecture is implemented as 2nd order feedforward architecture. A low quiescent current operational transconductance amplifier (OTA) is utilized to reduce power consumption. This delta-sigma modulator operated in 1V power supply, and achieved 64.87 dB signal to noise distortion ratio (SNDR) at 10 KHz bandwidth with an oversampling ratio (OSR) of 64. The power consumption is 17.14 mu W, and the figure-of-merit (FOM) is 0.60 pJ/conv.
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页码:2008 / 2011
页数:4
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