**Part Number:**TIDA-010019

**Other Parts Discussed in Thread:**ADS112U04, LMT70

Hi Steffen,

Could you show how to estimate the effect of CJC component accuracy when doing TC measurement?

I found two transfer functions in below material

https://www.ti.com/lit/ug/tidu271/tidu271.pdf (equation 2)

https://www.tij.co.jp/jp/lit/ug/tiduba5/tiduba5.pdf (equation 1,2)

First one seems the simplest, and the second one using RTD.

The system I am considering is like the one on TIDA-010019, specifically ADS112U04+anagol temp IC.

The user guide has result of temp error of CJC, would it directly affect the result accuracy?

For example, LMT70 has 0.1 degree offset and 0.05 degree error. Without offset calibration, would the system accuracy have additional 0.1 degree offset and 0.05 degree error? Or, would it be more complicated than that?

Best regards,

Kurumi