Thank you tzg6sa!
Quote:Otherwise the settling requirement depends on the applciation and the circuitry connected to the bandgap
Could you elaborate on some of the applications based on your experiences? Let's say that you have a bandgap reference - now do you directly connect bandgap output to current mirrors? And if so, do you have to worry about sink/source circuit's impedance (and that impedance affecting start-up response of bandgap)?