Part Number: OPA140
Hi there
I am new at anlog electronic.
I purchased a DIYAMP -SOIC-EVM to train myself with op amps but I did not test the real circuit yet.
I started with OPA140 and my question is regarding the simulation of the circuit you will find inthe attached file.
I cannot understand the result of the simulation, I mean I cannot see a of Gain =2 over some frecuency range.
Considering the components values in the circuit: and doing the math the poles an zero are : Fp=1.59 Mhz & Fz =0.796 Mhz, Fc =0.589Mhz ( 1/ (6.28 * 270E-12*1000)
Ther are a pole an zero very close each other.
Basically I do not understand which is the high limit of the BW and which is the utility of such circuit.
Thank you very much for any help
Alex
