Adafruit produces an operational amplifier and ADC in one board for RTD sensors called the MAX31865. They have a library on GitHub that is written for Arduino but as far as I can tell no one has translated the library to usable form for Windows IoT. Presumably it should work on a Raspberry Pi 3 with Windows IoT since you have the option of using the SPI bus or SPI over software on both platforms. If anyone knows how to translate the following code to C# I would be greatly appreciative.
Link to Adafruit GitHub: https://github.com/adafruit/Adafruit_MAX31865