In the circuit this circuit I want to know the cut of frequency, knowing that the GBW is constant (1.9Mhz) and R1=8.2kOhm and R2=114.6KOhm. So I did 19e6/2*pi*R2 (since doesn't have a capacitor) but my calculation aren't right. What I am doing wrong[![?][1]][1]


  [1]: https://i.sstatic.net/bxlZJ.png