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ADS1299EEGFE-PDK: ECG noise problem. RLD is not working.

Part Number: ADS1299EEGFE-PDK

Hi

I am evaluating ADS1299EEG-FE Performance Demonstration Kit. Trying to find a proper configuration for my ECG application. I have 1 electrode connected to CH1+, 1 electrode connected to CH1- and 1 electrode connected to BIAS_ELEC (JP25-2). CH1 electrodes are on the wrists and the bias electrode is on my right leg.

This is my setup:

Registers configuration is follows:

This is the waveform captured using the ADS1299EEG-FE analysis-scope tab:

After applying LPF processing it looks like this:

 

What could be the cause of such noise and how to get rid of it?

Also it seems like applying the RLD does not make any change. I tried with different combination of BIASSENSP/BIASSENSN and without bias at all, and it does not affect the signal.

Looking forward to your support!

Thanks.