Medical Electronics

摘要

Electrocardiogram (ECG) system analog front-end (AFE) devices are typically designed with discrete off-the-shelf components from various semiconductor vendors. The primary components of a traditional discrete ECG AFE include instrumentation amplifiers, operational amplifiers that implement active filters, and analog-to-digital converters (ADCs). This article discusses the characteristics of electrocardiogram (ECG) signals and different front-end approaches for ECG signal acquisition; the tradeoffs between different approaches and the effects on overall system design; and it includes a description of potential implementations of the optimal front-end architecture.