How to Measure ECG and PPG with +/- 5us Temporal Correlation Using the MAX30001/3 ECG and MAX86170/1 PPG

Abstract: Pulse Arrival Time (PAT) is a useful medical parameter which can be correlated to physical attributes like artery hardness and changes in blood presser. Accurate PAT measurements require good temporal correlation between Electrocardiography (ECG) and Photoplethysmography (PPG) data. This application note presents a two chip solution using the MAX30003 ECG analog front end and the MAX86171 PPG optical pulse oximeter.