Hello,
I'm currently trying to get respirations off the ADS1292R using the circuit described in page 58 of the spec sheet. I tried it with a 0-3.3V analog supply, and it worked fine. However, when I set the analog supply to -2.5V to 2.5V, and changed the capacitor for PGA1N and PGA1P to 47 nF, as described on page 61 of the spec sheet, I can no longer get respirations. Is there any configuration that I should be using? I tried all the permutations of the phase delay, 32 Khz, 64 Khz, and gain.
Thanks for any help,
George