I have some general questions on electrodes for measuring BIA and ECG.
Signal chain for BIA and ECG is this,
AD8233 + ADuCM350 for ECG, AD8226 + ADuCM350 for BIA(4-wire bio-isolated measurement)
Q1) How much the resistance of the electronde impact the BIA and ECG ?
Q2) What scope should the resistance of the electrode be controlled in ?
Q3) Except resistance, Is there other parameter I sholud notice ?
It will be really appreciated, when I get reply on these.
Thanks a lot.