Other Parts Discussed in Thread: OPA365, OPA364, OPA325, OPA388, OPA320, OPA322
Hello,
There is a graph showing the variance of the common mode voltage Vs Offset voltage (see below copied from the datasheet). This is of concern to us as if we have a signal feeding into this amp as a unity gain buffer (for example) if that signal rises from 3V to 4.5V then according to this there will be a point where the offset voltage will step (if I am reading this right)
What are the different coloured lines for? I have assumed temperature but there is no key and I would be interested in which temperatures map to which lines.
Further I want to confirm I am reading this correctly, this means that there is a step in offset voltage when running as a unity gain buffer at ~4.1V – is that correct? (assuming V- = 0V and V+ = 5V). So in the situation where a signal is varying around this level there would be an extra 1.5mV of noise added to the signal?