**Part Number:**OPA4277-SP

In the OPA4277-SP datasheet there are multiple entrees for Vos.

Is the first entry (Spec=Max +/-65uV) at 25C and post rad? To add temperature would I add Vos(Temp_Drift)=0.15uV/C x (Hot_Temp - 25C)?

Vos(Max)=+/-65uV +/- 0.15uV/C x (Hot_Temp -25C)

What is the 2nd Vos(Max)=+/-140uV in the table? Is this for -55C to 125C and no radiation? It does not seem to matchup with the 1st entry and the Vos(Temp_drift) of 0.15uV/C over that temp range. The temp_drift slope is quit a bit larger than 0.15uV/C to satisfy the Vos of +/-140uV. If I used this entry would I need to scale it to my temp range and also add radiation variation from the TID report?

Thanks, Brian