Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I can not understand what you want to mean at all.One issue is that the output of the integrator is vdd or 0,
since there is no dc feedback to control it,
which gives a wrong simulation data.
I can not understand what you want to mean at all.
"noise analysis" is same as "ac analysis".
So there is no problem even if there is no dc feedback to control output.