I'm designing an op amp circuit to amplify 20mV, 18kHz square wave up to measurable levels (~2-3V). Why is the output signal:
- Biased at ~400mV
- Triangular (high output capacitance? is that a thing?) ?
Op amp is chosen to have maximum slew rate (1V/uS).
As suggested, I've tried a couple of higher-GBWP op amps and none of them work for some reason. Why is that?