MAX30003
Production
The MAX30003 is a complete, biopotential, analog front-end solution for wearable applications. It offers high performance for clinical and fitness applications...
Datasheet
MAX30003 on Analog.com
When using the MAX30003WING board with 3 leads, I get clean ECG data. However, just using two leads, all I seem to get is a lot of noise. Touch the ground lead and the signal is again very good.
I am powering it from a battery and sending the received data over a BLE link so the unit is galvanically isolated.
I've gone through the datasheet but I don't know why the ground lead should be needed for an isolated system. I was hoping to just need the two leads, but I cannot seem to get that working. Any pointers would be welcome!
