OPA209 Gain band width per data sheet is 18 MHz. However, when I simulate it in a non-inverting amplifier for a gain of ~ 200, I get a 3 dB bandwidth of ~ 1 MHz.
This doesn't make sense. (If the gain is 200, then the BW is approximately 18 MHz /200 ~ 90 kHz). Either (i) I am wrong or, (ii) the spice model is wrong. Could some one out there tell me where the problem is ?.
Thanks
PS: Edited to correct error in gain calculations.
