I'm investigating whether or not to use this chip for a particular project.
I want to use it to measure an impedance that can vary from 1k to 10M.
Can I achieve very accurate readings when using a constant value of Rfb or will I have to make a number of measurements refining Rfb with each one to achieve high accuracy. Accurate to with in 1 Ohm we shall say.
Has there been many other projects using this chip to investigate impedance values or is it more designed for observing impedance change.