LTspice Simulation

[sbhanot030]

I am simulating an op amp circuit for its stability, the bode plot has a -6dB slope per decade .
I have attached the both the circuit and the result, can someone please share where I was wrong and what changes could be made.

 

[FvM]

Why do you think the simulation is wrong? Looks like correct loop gain simulation setup.

--- Updated Sep 25, 2023 ---

In case you want to measure closed loop gain, the voltage source would be placed at the amplifier input.

--- Updated Sep 25, 2023 ---

You are measuring octave rather than decode gain slope.

 

[sbhanot030]

Why do you think the simulation is wrong? Looks like correct loop gain simulation setup.

The slope should ideally be -20dB per decade and since the setup is an ideal one should it not be -20dB

 

[sbhanot030]

Why do you think the simulation is wrong? Looks like correct loop gain simulation setup.

--- Updated Sep 25, 2023 ---

In case you want to measure closed loop gain, the voltage source would be placed at the amplifier input.

--- Updated Sep 25, 2023 ---

You are measuring octave rather than decode gain slope.

For decade slope as well the readings are same

 

[FvM]

Don't know what you mean. We see about 20 dB/decade in your plot, as expected.

 

[crutschow]

For decade slope as well the readings are same

6dB/octave is the same as 20dB/decade.
Do you understand the difference between octave and decade?