Hej Folks,
I have a little bit a problem interpreting the TUE. I calculated my Error depending on the accuracy of my voltage ref. and all the other characteristics. Now I have some value and I dont know what to do with it.
For example :(with some fake numbers):
My DAC can Output 0V to 5V. 16Bit, I calculated an TUE of 688LSB ( maximal Characteristics) . So 5V/(2^16 - 1 ) = LSB = ~76,3 mV and therefor the TUE_max = 0.0525 V.
So how do I use the Values now? Can I add this to every Outputvoltage as an Offset? For example I want to give out 3.2 V with my DAC. Is the Outputvoltage I have to expect 3.2V+0.0525V? Is it the same if I give an Output voltage of 5V? So i need to expect an Votlage of 5V+0.0525V?
Another question is, I used only the max values from the datasheet. Do they now refer TA =105°C or Tjunction = 105°C?
What if I want to know the room temp value? Do I have to calculate the value backwards?
maxGain_err - (GainDrift*deltaT(K)) = typGain_err
thank you very much for your help Im a Student and Im doing this for my Bachelorthesis!
BR
DK