The electrocardiogram (ECG) is one of the most essential tools in modern medicine, used to detect heart problems ranging from ...

A signal averaged ECG is a diagnostic test that averages multiple QRS complexes over a 10-minute time period, or at least 250 QRS complexes in order to see minute changes in the electrical ...

The differential signal then goes through a low-pass filter to remove high-frequency noise, after which it enters an ADS1291 ECG analog front-end chip. The ADS1291 contains a delta-sigma analog-to ...