Other Parts Discussed in Thread: ADS124S08
This is a simplified diagram of the similar configuration shown in the main question but with two RTD in series, each pair used with one IDAC and REF inputs. A similar configuration is shown in TechNotes SBAA235.
My question here is if this is possible? if yes, then please comment on the accuracy of such implementation considering we provide the recommended filtering and drive the ADC at sub 30 SPS speed. I am trying to get < ±0.6°C accuracy with the maximum number of RTD possible.
Regards,
Yash RK