AD2S1210 cites component grades in the datasheet. However, I couldn't find a clear explanation of the component grade based on the component datasheet.
I assumed the following:
1. If the PN specification says that the temperature range is from -40 to + 125 it is C or D grade.
2. The D in the WDSTZ means that it grade is D.
Is my assumption correct? Can you clarify this or indicate a document that does so?