Help me on Noise analysys in Spectre

[ramesh441]

I am simulating a differential amplifier circuit in Cadence Spectre.

Can any one say how to do noise analsys of a circuit in spectre.

Thanking you
RamesH

 

[mengcy]

construct a test bench which is closed loop and gain=1.add a vdc =0 as the input of the opamp.
Spectre provide noise analysis. you could choose the differential output as the output pair. and input source as the noise source.
After simulation you could print noise summary to see the total noise and the noise contribution of every transistor.
Good luck!