Op-amp Oscillation

Prodigy 70 points

Replies: 14

Views: 145


I have used the THS4151 op-amp to create a circuit that takes two inputs and subtract them to give an output. Below is the schematic for the circuit:

R1 is where I will input a 1 MHz, 2V sinusoidal signal, and R6 is where the other input signal should come from. In this case, I grounded that input. Below is a picture of the input signal:

My problem is when I try to power the op-amp, It will oscillate, and the input signal will look like: 

and the output look like this:

any suggestions? 

Thank you

14 Replies