ADS1294: We would like to know the difinition of Comparator Threshold for the Lead-Off Detection

Hi Amano-san,

The percentage could be relative to the AVDD and AVSS you are supplying.

E.g. if AVDD is 3V and 95% is selected, then it would be 3V * 0.95 = 2.85V.

To help troubleshooting, 

Have you tried this Lead-Off detection method using the ADS1298 evaluation kit/board(EVM) with an ECG simulator?

Also, do you use the RLD drive/electrode?

In addition to the the current magnitude and frequency settings and RLD, electrodes/patches materials, gels, skin conditions, wires/cables are also very important that could affect the Lead-off detection stability.

It's suggested to try/test the registers settings using ADS1298 evaluation kit/board(EVM) with an ECG simulator first for find the working combinations.

Thanks

Will do !　Thanks ! We might have another question after tweaking the setting and check the signal. 

No problem.

Again, It's suggested to do enough tests&validations and note down the settings on EVM first.

Thanks