Design of low-noise low-power ECG amplifier circuit with high integration level

Author:

Wang Wenzhao

Abstract

Abstract Electrocardiogram (ECG) is a common tool in medicine and is an important indicator for diagnosing many diseases. Nowadays, aspects such as low noise, low power, and high integration have become important indicators for ECG circuit design. Also, due to the low amplitude of ECG signals, ECG circuits need to have high gain to ensure accurate signal detection and analysis. Second, ECG signals are usually subject to interference from other parts of the body, so a high common mode rejection ratio (CMRR) is required to suppress these interfering signals. In this paper, we propose an ECG circuit composed of an amplifier with a drive right leg circuit (DRL) using pseudo-resistors as well as capacitors to improve the common instrumentation amplifier. The simulation using industrial-grade simulation software LTspice shows that the circuit has a voltage of 1.8 V, a bandwidth of 17 mHz-1 KHz, a gain of 55 dB, and an INR of 3.4 μVrms, and because the signal amplifier part of this circuit design consists of only pseudo-pseudo-resistors, capacitors, and mos tubes. Therefore, it has a smaller size and a higher degree of integration. In addition, the circuit has less power loss for the same amplification design. Overall, this design has excellent characteristics such as low noise, low power, and small size.

Publisher

IOP Publishing

Subject

Computer Science Applications,History,Education

Reference12 articles.

1. A survey on ECG analysis;Berkaya;Biomedical Signal Processing and Control,2018

2. A comprehensive survey on low-cost ECG acquisition systems: Advances on design specifications, challenges and future direction;Faruk;Biocybernetics and Biomedical Engineering,2021

3. An experimental reliability study of pseudo-resistors in biomedical applications;Reich,2022

4. Can driven-right-leg circuits increase interference in ECG amplifiers?;Gomez,2011

5. CMRR analysis of the 3-op-amp instrumentation amplifier;Smither;Electronics letters,1977

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3