/diy/ - Do It Yourself

>>1892346
>op-amps have a gain-bandwidth limitation
I know, but the equation doesn't mention frequency or time at all, so I assumed that it was a low-frequency one. If I was anywhere near that cutoff frequency I'd replace G_n with the actual transfer function A_n, since it will matter for noise too. But I suppose it's conceivable.

I know that it's an example, but 1Meg GBP is low for an op-amp, right? Can't imagine being limited to a gain factor of 50 with audio signal bandwidth up to 20kHz. Pretty sure I saw 100Meg being more reasonable. At the very least, I don't think I've ever run into the GBP in my experiments, at least aside from testing the bode response of an op-amp.

>>1892350
Maybe he means something like this? Both transfer the signal from one end to the other, at least to some extent.