Other Parts Discussed in Thread: TL081
Hello
I have studied some papers. I found some useful topics and would like to share it below. But I couldn't manage this technique with OPA659 unity gain! could you please help me?
the power supply is +-5V
I calculated the Ft of the unity gain Amp (I think Ft is the unity gain frequency, frequency where the open loop gain is equal to one) and depends on the situations it was approximately between 100MHz to 200Mhz.
so I choose Rb=7.5K and Cb=10pF. but due to using +-5V power supply I couldn't calculate Rv and Cv!
anyhow I need an effective way to reduce the input capacitances.
Regrds