The design of ECG preamplifier for wearable device

Abstract

Electrocardiogram (ECG) has been more and more widely used over the past several decades. However, the commonly used ECG instrument has the disadvantages of large area occupation and heavy. Due to the strong sudden nature of heart disease, and the traditional electrocardiotic monitoring system has cumbersome operation and poor real-time electrocardiograms. Ordinary people cannot read the electrocardiogram correctly, and cannot meet the needs of individual and family electrocardiological supervision at any time and anywhere. Patients often lose valuable rescue time and even lose their lives because they cannot monitor ECG in time. Therefore, the design of a wireless ECG guardianship system is of great significance to home and personal electrocardiotic guardianship. In order to solve these limitations, a wearable ECG circuit was proposed here. The front part of the amplifier circuit was composed by the single-stage operation amplifier to minimize the number of electronic components. The wearable ECG was simulated by using Multisim simulation software to verify the feasibility of the design. The main reason for using Multisim is that it can well complete our simulation tasks in the experiment and its cost requirements are not very high. It can be experimented anytime, anywhere, without device damage and personal risk, so we chose Multisim to do the initial experiment, and conduct further experiments after the experimental results are feasible