Improvements of ECG design for portable monitors based on classic 3-amplifier model

Yuan Wei; Lingtong Yang; Zhenyuan Yang

doi:10.1117/12.2628645

14 March 2022 Improvements of ECG design for portable monitors based on classic 3-amplifier model

Yuan Wei, Lingtong Yang, Zhenyuan Yang

Proceedings Volume 12165, International Conference on Intelligent Traffic Systems and Smart City (ITSSC 2021); 121651R (2022) https://doi.org/10.1117/12.2628645
Event: 2021 International Conference on Intelligent Traffic Systems and Smart City, 2021, Zhengzhou, China

Abstract

With increasing attention to cardiovascular diseases in recent years, various portable electrocardiograph (ECG) monitoring devices have been designed and manufactured. As a mature design, the three operational amplifiers (3 op-amps) structure has high input impedance and a high common-mode rejection ratio; therefore, it is widely used in the circuit design of portable ECG equipment. In the actual circuit design, in addition to the 3 op-amp structure, some extra improvements are always needed to meet the measurement requirements of ECG signals. This paper first presents the technical specs and common structures of instrument amplifiers. It then expands the topic to portable ECG monitors, providing not only technical requirements of the portable ECG equipment but also a summary of the existing improvements, including drivenright-leg circuit, notch circuit, self-calibration circuit, electrode design and 5 op-amp model, which are helpful to the designers of portable ECG detection devices.

Citation Download Citation

Yuan Wei, Lingtong Yang, and Zhenyuan Yang "Improvements of ECG design for portable monitors based on classic 3-amplifier model", Proc. SPIE 12165, International Conference on Intelligent Traffic Systems and Smart City (ITSSC 2021), 121651R (14 March 2022); https://doi.org/10.1117/12.2628645

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