ADS112C04: Please help to check the setting for PT100 3-wire RTD

Hi Wayne,

These settings should be okay, depending on your circuit.

Do you have a schematic you can share?

Please reference our application note for additional information on 3-wire RTD configurations:  A Basic Guide to RTD Measurements (Rev. A) (ti.com)

The following circuit examples show how to interface different 3-wire RTD configurations with our ADC's and are a good reference point for your design.

For a 3-wire RTD configuration using a single IDAC, you can follow the example from Figure 2-4.

Make sure to select an Rbias resistance that will not violate the IDAC compliance voltage for your selected excitation current value.

Best Regards,

Angel

Hi Jerry,

The schematic and parameters should be okay.

Let me know if any additional questions/concerns arise. 

Best Regards,

Angel