Other Parts Discussed in Thread: TEST, OPA818
I want to setup an AC-coupled noninverting amplifier based on the OPA858 operating from a single 5V supply with an overall passband gain of 76V/V (37,6dB) and a minimum bandwidth of fCT = 30kHz. The schematic is shown below. Unfortunately the circuit is unstable and oscillates with a frequency of around 80MHz. I am quite unexperienced with such kind of circuits so any help would be much appriciated. How can i simulate the open loop in TINA to investigate the phase margin for that case?