gain bandwidth product at a particular fo?

[SArepairman]

What is Fo when dealing with gain bandwidth product?

http://cds.linear.com/docs/en/datasheet/100737fbs.pdf

if you look under gain bandwidth product it specifies the condition fo = xkhz.

What does this mean?
I want to know how much gain I can put on a certain signal... normally I would divide GBW by the gain... but how do I add the condition to the "formula"?

what does it matter? why is it specified? what are the nonidealities? how should it effect my decision to use a certain part?

[Galaxyrise]

Perhaps http://www.ti.com/lit/an/slyt383/slyt383.pdf will answer your question

[T3sl4co1l]

Referring to Voltage Gain vs. Frequency (pg. 6), note the prominent slope where gain is dropping with frequency over six or seven decades (it makes a very good integrator!).  This slope is guaranteed by design (as is the parameter itself..), so all that matters is measuring the gain at a particular frequency in that range.  From that, you know all points on that line, including where it intersects unity (G = 1).

Damn, that's a nice amp too, I'd pay ten bucks if I needed one.  And they aren't even that, more like five bucks.

Tim