I want to know the cut off frequency of this circuit, given that the GBW is constant (1.9MHz) and R1=8.2kOhm and R2=114.6KOhm. I did 19e6/2piR22*\$\pi\$*R2 (since itdoesn'tit doesn't have a capacitor) but my calculations aren't right.
What I am doing wrong?