Sumangala, I'm glad that you were able to debug the noise problem with the board. Working with RTDs requires a lot of attention to detail to get precision measurements. With Kelvin connections (we also often call them four-wire or force-sense measurements), you need to get a measurement close to the terminals of the resistor itself. I'm guessing that the filtering probably helped the most in your application. There really shouldn't be too much difference in the RTD and resistor measurement if you can keep the RTD temperature from fluctuating too much. Regardless, good luck on your application. If you have more questions, post back. Joseph Wu
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