| 心电信号采集的模拟前端集成电路设计 |
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| 引用本文： | 周前能,陈飞,上官培阳,庞宇,李红娟,罗伟.心电信号采集的模拟前端集成电路设计[J].重庆邮电大学学报(自然科学版),2016,28(1):66-71. |
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| 作者姓名： | 周前能 陈飞 上官培阳 庞宇 李红娟 罗伟 |
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| 作者单位： | 1. 重庆邮电大学 光电工程学院,重庆,400065;2. 四川理工学院,四川 自贡,643000 |
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| 基金项目： | 国家自然科学基金(61102075,61301124,61471075);国家物联网发展专项基金;重庆市教委科学技术研究项目(KJ120503);重庆高校创新团队建设计划(智慧医疗系统与核心技术创新团队);重庆创新青年人才培养项目(cstc2013kjrc-qnrc10001);重庆“121”科技支撑示范工程(cstc2014jcsfglyjsX0028,cstc2014zktjccxyyBX009) |
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| 摘 要： | 基于 SMIC 0．18μm 1 P6MCMOS 混合工艺设计了一种适用于心电信号采集的模拟前端集成电路，主要由前置放大器、带通滤波器、工频滤波器及后级放大器等组成。通过采用低噪声前置放大器技术，有效地改善了模拟前端集成电路的信噪特性；通过采用陷波器技术，有效地抑制了50 Hz 工频干扰信号。模拟前端集成电路获得了43．44 dB的中频增益以及通带为0．0956—107．3 Hz；在0．1 Hz 与 100 Hz 频率处，模拟前端集成电路分别获得15．1μ槡V ／ Hz与745 nV ／ Hz的等效输入噪声电压；在1．8 V 电源电压条件下，模拟前端集成电路的静态功耗仅为槡912．5 nW。仿真结果表明，所设计的模拟前端集成电路适合于心电信号采集要求。
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| 关 键 词： | 无线体局域网 心电信号 模拟前端集成电路 陷波器 |
| 收稿时间： | 2015/3/19 0:00:00 |
| 修稿时间： | 2015/10/24 0:00:00 |
Design of analog front-end IC for ECG signal acquisition |
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| ZHOU Qianneng,CHEN Fei,SHANGGUAN Peiyang,PANG Yu,LI Hongjuan and LUO Wei.Design of analog front-end IC for ECG signal acquisition[J].Journal of Chongqing University of Posts and Telecommunications,2016,28(1):66-71. |
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| Authors: | ZHOU Qianneng CHEN Fei SHANGGUAN Peiyang PANG Yu LI Hongjuan and LUO Wei |
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| Institution: | College of Electronic Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,P.R.China;,College of Electronic Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,P.R.China,College of Electronic Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,P.R.China,College of Electronic Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,P.R.China,College of Electronic Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,P.R.China and Sichuan University of Science and Engineering,Zigong 643000,P.R.China |
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| Abstract: | A kind of analog front-end IC for Electrocardiogram (ECG)signal acquisition is designed in SMIC 0.1 8μm 1 P6MCMOS mixed-signal process,which includes pre-amplifier,band-pass filter,notch filter of power frequency and post-amplifier.Performance of signal to noise is effectively improved by adopting low noise preamplifier in the analog front-end IC.50 Hz power interference can be effectively rejected by adopting the technique of notch filter.The analog front-end IC achieves an IF gain of 43.44 dB and a passband ranging from 0.0956Hz to 1 07.3 Hz.The analog front-end IC at 0.1 Hz and 1 00Hz achieves the equivalent input noise voltage of 1 5.1 μ V / Hz and 745 nV / Hz respectively.The standby power consumption of the designed analog front-end IC is only 91 2.5 nW with 1 .8 V power supply voltage.Simulation re-sults show that the designed analog front-end IC is suitable for the requirement of ECG signal acquisition. |
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| Keywords: | wireless body area network electrocardiogram signal analog front-end IC notch filter |
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