Theoretical and Natural Science
- The Open Access Proceedings Series for Conferences
Theoretical and Natural Science
Vol. 25, 20 December 2023
Open
Access | Article
Design of a high bandwidth ECG signal low noise amplifier circuit for wearable devices
* Author to whom correspondence should be addressed.
Abstract
Nowadays, more than one million people die due to heart problems annually. Detecting the Electrocardiogram curve is an effective way to evaluate heart condition. Compared with large devices in the hospital, wearable devices are showing their advantage in detecting people’s Electrocardiogram whenever and wherever possible. However, in traditional amplifier circuit design, there is less attention to the bandwidth. The noise is negatively correlated with the current while the power consumption is positively correlated with the current, so it is challenging to balance the noise and power. Therefore, a design of a high bandwidth Electrocardiogram signal low noise amplifier circuit for wearable devices is proposed in this paper. The improved circuit is based on a conventional instrumentation amplifier and consists of two stages. The op-amps were replaced with Operational Transconductance Amplifier. The circuit also has a Driven-Right-Leg circuit part, which can tremendously reduce the effect of common-mode noise. The simulation result shows that the circuit has a high bandwidth and stable gain. Meanwhile, the circuit consumes less power and has a low integrated input-referred noise. This study is extremely helpful in expanding the application of wearable Electrocardiogram signal-detecting devices.
Keywords
Wearable Devices, ECG Amplifier Circuit, High Bandwidth, Low Noise, Low Power
References
1. Sufi F, Fang Q, Khalil I and Mahmoud S 2009 Novel methods of faster cardiovascular diagnosis in wireless telecardiology IEEE J. Sel. Areas Commun. 27 537
2. Winokur E, Delano M and Sodini C 2013 A wearable cardiac monitor for long-term data acquisition and analysis IEEE Trans. Biomed. Eng. 60 189
3. Wang N, Zhou J, Dai G, Huang J and Xie Y 2019 Energy-efficient intelligent ECG monitoring for wearable devices IEEE Trans. Biomed. Circuits Syst. 13 1112
4. Yin S, Li G, Luo Y, Yang S, Tain H and Lin L 2020 A single-channel amplifier for simultaneously monitoring impedance respiration signal and ECG signal Circuits Syst. Signal Process. 40 559
5. Ha S, Kim C, Chi Y, Akinin A, Maier C, Ueno A and Cauwenberghs G 2014 Integrated circuits and electrode interfaces for noninvasive physiological monitoring IEEE Trans. Biomed. Eng. 61 1522
6. Mazur A, Wang L, Anderson M, Yee R, Theres H, Pearson A, Olson W and Wathen M 2001 Functional similarity between electrograms recorded from an implantable cardioverter defibrillator emulator and the surface electrocardiogram Pacing Clin. Electrophysiol. 24 34
7. Black B, Stromberg K, Balen G, Ghanem R, Breedveld R and Tieleman R 2010 Is surface ECG a useful surrogate for subcutaneous ECG? Pacing Clin. Electrophysiol. 33 135
8. Himmrich E, Zellerhoff C, Nebeling D, Rosocha S, Przibille O, Nowak B and Liebrich A 2000 An welcher Stelle soll ein implantierbarer EKG-Event-Recorder plaziert werden? Zeitschrift für Kardiologie 89 289
9. David P and Michael N 2004 Design and Development of Medical Electronic Instrumentation:A Practical Perspective of the Design, Construction, and Test of Medical Devices John Wiley & Sons Inc 65
10. Zhang Y, Wang J, Xiong D and Guo L 2021 Design of wearable wireless bioelectric feedback control system Transducer Microsyst. Technol. 40 73
11. Wei C 2020 Analog front-end circuit design for ECG signal acquisition Anhui University doi: 10.26917/d.cnki.ganhu.2020.001280
12. Chen Y et al 2015 An Injectable 64 nW ECG Mixed-Signal SoC in 65 nm for Arrhythmia Monitoring IEEE J. Solid-State Circuits 50 375
13. Steyaert M and Sansen W 1987 A micropower low-noise monolithic instrumentation amplifier for medical purposes IEEE J. Solid-State Circuits 22 1163
Data Availability
The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.
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- Volume Title
- Proceedings of the 3rd International Conference on Computing Innovation and Applied Physics
- ISBN (Print)
- 978-1-83558-233-6
- ISBN (Online)
- 978-1-83558-234-3
- Published Date
- 20 December 2023
- Series
- Theoretical and Natural Science
- ISSN (Print)
- 2753-8818
- ISSN (Online)
- 2753-8826
- DOI
- 10.54254/2753-8818/25/20240834
- Copyright
- 20 December 2023
- Open Access
- This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited