re the Gain Resistor (for the differential amp):
What is the maximum possible gain (ie, lowest R_gain value) ?
The datasheet example p8 says 11.11kΩ = gain 20V/V (26dB), and the Electrical Characteristics p2 gives 1.01kΩ = 200 (46dB).
I have set R_gain as 330R (56dB), can it go lower to give higher gain or have I hit a ceiling ?