Tech reference:
"If the PGA output is routed to other circuitry, a 20-kΩ series resistance must be added in the path near the CFILTER capacitor. The routing should be matched to maintain the CMRR performance." (p. 22)
Not sure what is intended here re location of 20K resistor - is it possible to sketch this pls?
[My config is unipolar supply. I'm accessing the PGA out put to feed a second ADC (single-ended) which will sample the signal at a different sampling rate.]
tks, bruce
