how can I simulate Bode plot in cadence?

[katrin]

bode plot cadence

I want to study the stability of my feedback transimpedance amplifier, therefore, I think I should take a look at its open-loop gain and phase response VS frequency, just Bode plot

But I have not figured out how can I do this simulation in cadence. Basically, I know I should use AC analysis. I tried to use a sinusoidal current source at the input, and set its frequency as a variable "freq", its AC magnitude as a contant current value, and running AC analysis to sweep the freq. But it seemed not to work.

Meanwhile, when I disconnect the feedback resistor to the circuit input, at this time, the open terminal of this feedback resistor should be the output of open-loop gain. At this time, can I just select this open terminal as the output or should I connect a large terminal resistor from this feedback resistor to ground? in other words, how can I break the loop?

could someone help me to clarify how can i do this simulations?

thanks

 

[Fom]

cadence bode plot

To breake a loop I just insert into loop Vdc source and set DC voltage to 0V and AC voltage 1mV.
One terminal of DC source is input another is output.