What are the limiting factors of these op-amps?

Looks like you're trying to get a Q of around 20-40, just eyeballing it, so the GBW is going to have to be that much higher than the center frequency, and preferably 5-10x that, so more like 10-40MHz.

The "attenuation" that others are talking about is the resistor ratio that you need to get that high Q so I don't think you can avoid that.


I agree with Tim; don't attenuate the input signal unnecessarily much.

Then, your only choice is something with more gain at and around 100 kHz.

Luckily, all the opamps you've tested are pretty low-bandwidth (some of them are more than 40 years old). With 10 MHz gain-bandwidth-product alternatives, you should probably be pretty fine:

E.g. the TL972 should be OK for this application and can be had for (free shipping) $0.67 apiece at reputable distributors. But it's not a JFET input – my suspicion is that you don't actually care as long as the input current is low enough.