I have it on a prototype board with a DIP adapter. I have verified the current source is working with the method that you have described, I connected the resistor from the source to ground and it measures 825 mV on the scope. I have also verified the vref voltage is about 2V. If I connect ref0n to gnd and measure across ref0p to ref0n I measure 1.7V. Nothing else is connected to ref0. Ref1 does not appear to have any voltage on it, but once I connect it to the RTD and resistor the signal will start to fluctuate. The reference fluctuates more than the signal from the RTD.
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