Simulate input referred noise using Cadence noise analysis?

If I want to simulate input referred noise of an op amp using "Noise"
analysis in Analog Artist, is the configuration (unity-gain) below a
good way?
Vsin here is the independent source from analogLib. Since vsin itself
is noiseless, then all the noise should come from the amplifier itself,
in this case, onoise = input referred noise, right? Or Vsin can be
replaced with vdc with AC amplitude set to 0... ? Thank you for your
comments/corrections!

_________________
| |
| |
|________|\ |
| \ |
| \____|
________ |Amp/
| | /
| | /
(Vsin) |/
|
-------
---

 

Sorry, I meant AC magnitude "1".

wjcndyd@yahoo.com wrote:

If I want to simulate input referred noise of an op amp using "Noise"
analysis in Analog Artist, is the configuration (unity-gain) below a
good way?
Vsin here is the independent source from analogLib. Since vsin itself
is noiseless, then all the noise should come from the amplifier itself,
in this case, onoise = input referred noise, right? Or Vsin can be
replaced with vdc with AC amplitude set to 0... ? Thank you for your
comments/corrections!

_________________
| |
| |
|________|\ |
| \ |
| \____|
________ |Amp/
| | /
| | /
(Vsin) |/
|
-------
---

 

So putting a source there (vsin or whatever) is just to let the
simulator know where the input is? Did I understand this correctly?
Thank you very much!