I just came about an op-amp spec where they say, "the Op-amp X is unity-gain stable with a small-signal unity gain bandwidth of 105MHz.." As you continue to read, it then says, "with a gain-bandwidth product of 70MHz, ...."
What is the difference between these specs? How can its unity gain be specified for two different bandwidths (I understand it says small signal, but I still don't know how I'd use the information). It seems to me the meaningful spec is the 70MHz GBP and the 105MHz is just "specmanship". But, if anyone can explain what they mean by that small signal BW, and how that info is useful, I'd appreciate it. Thank you.
Edit: I didn’t want to malign it, but at your requests, here’s a link to the OPA2810 data sheet. https://www.ti.com/lit/ds/sbos789c/sbos789c.pdf?ts=1605745386167&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FOPA2810