I am trying to estimate what is the temperature coefficient of the gain for AD8021 used as a voltage follower. I suspect this coefficient will be small by I would like to know what to expect: 100 ppm/*C or maybe 10000ppm/*C? Does anybody has got a clue? In the datasheet figure 12 shows some dependence for different temperatures but no explanations is given about conditions (does the measurement includes tempco of the resistors?).