A Variable Bandwidth Amplifier for a Dual-Mode Low-Power ΔΣ Modulator in Cardiac Pacemaker System

被引：0
|
作者：
Yeknami, Ali Fazli [1 ]
Alvandpour, Atila [1 ]
机构：
[1] Linkoping Univ, Dept Elect Engn, Div Elect Devices, SE-58183 Linkoping, Sweden
来源：
2013 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) | 2013年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents the design and implementation of a variable bandwidth amplifier intended for ultra-lowpower biomedical implants in 65nm CMOS, providing tunable gain-bandwidth in three modes: 0.9 MHz, 1.7 MHz, and 2.3 MHz with consistent 56 dB DC gain. The amplifier consumes 180nW static power in the lowest bandwidth mode, and consumes 315 nW static power in the full bandwidth mode with an 8 pF load from a 0.9-V supply voltage. To illustrate the concept, the presented programmable bandwidth amplifier is applied in a dual-mode Delta Sigma modulator aiming for sensing/measuring stage of a cardiac pacemaker.
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页码：1918 / 1921
页数：4
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