art Number: ADS1293
Hi Sir
Please refer below picture. (schematics & waveform)
According application note SBAA188 (Improving Common-Mode Rejection Using the Right-Leg Drive Amplifier) figure 7 to add RP (50K) & CP.
According TI Precision Lab discussing OP AMP bandwidth part 1 page 10 calculate CP value = 1nf.
The waveform use ADS1293EVM to measure. Do you have any suggest to further reduce noise?