In the EC talbe, it says the 10uV/degree (typ).
1. is this for full temp range from -40degree to 85degree?
2. For example to calculate input offset voltage at the specific temp:
- If temp is 60degree, the temp coefficient will be 10uV x (60degree - 25degree) = 350uV
- if temp is 0degree, the temp coefficient will be 10uV x (0degree - 25degree) = -250uV
Are above examples right? if not, how come?
Thanks.
1. Full Range. See the sections in the red boxes below. For the MC3303, your full temperature range will be -40 C to +85 C.
2. Not quite. What you've calculated is the shift in offset voltage due to drift. Do not forget to include other sources of offset, such as the typical offset at room temperature. Your calculation should consider the drift due to temperature in addition to any other offset you expect to see.
This link has a video and slides we've put together to cover this subject. It includes an explanation of this spec, how to read the plots for offset drift over temperature, and a sample calculation. It should clarify your question and I think it will be well worth 5 to 10 minutes of your time.
Please let us know if you have any more questions.
Regards,
Daniel
