This chip seems to fulfil all of my needs, but providing +-15V is turning out to require a lot of redesign on the rest of my system which I would rather not do. From the datasheet, I can see min +-Vs=+-8V. I can also see that the output swing at +-Vs=+-15V is only +-11V, so perhaps one might lose some output swing (to +-8V?).
If this is the only thing that happens, then I am fine with it, but I want to check to make sure that
1. the "reference" in the block diagram still functions at +-Vs=+-12V. i.e. that the accuracy will be roughly similar.
2. the thermal accuracy coefficient remains roughly the same. I do not really care about the absolute accuracy. I only care about the thermal stability. I would like the divider to give a consistent result over time, given the same inputs.