reference filter can be found in application report RTD Ratiometric Measurements and Filtering Using the ADS1148 and ADS1248 (SBAA201). The reference resistor R REF not only serves to generate the reference voltage for the device, but also sets the common-mode voltage of the RTD to within the specified common-mode
matching the input and reference filter, see the RTD Ratiometric Measurements and Filtering Using the ADS1148 and ADS1248 application report. The reference resistor R REF not only serves to generate the reference voltage for the device, but also sets the voltages at the leads of the RTD to within the specified
