I've done everything that is in "SBAA188–July 2011" = "Improving Common-Mode Rejection Using the Right-Leg Drive Amplifier" and my CMRR is the same 74 dB. what Can I do ?
2 - In the above Application report "SBAA188–July 2011", said that the input R-C-R-C network on page 7, C=47nF and in the Demostration board said c=47pF. What value is correct ????