Noise spectral density of an amplifier

Hi Subhajit,

Generally you'd ensure that your amplifier is DC biased in its correct operating region, and then perform a noise analysis, specifying the output of the amplifier, and the output frequency range of interest. Then plot the output noise. Am I missing something here? This seems pretty basic to me - so I'm assuming your question must be more complicated than this (or you've got absolutely nobody with experience to learn from that you can ask?)

Regards,

Andrew.

Thank You for your response Sir. I am attaching a screenshot for what I want to know exactly..

Thank You for your response Sir. I am attaching a screenshot for what I want to know exactly..

Well, if you're going to ask questions on these forums, I suggest:

1. You post them in the right place. This had nothing to do with the SKILL programming language, so I moved it into Custom IC Design
2. You didn't think that it might be quite important to mention the fact that you had switches in the feedback loop. Are these regularly reset (e.g. with a clock) providing some kind of auto-zero approach? If so, PSS and pnoise would be sensible - you might want to look at Simulating switched-capacitor filters with SpectreRF
3. Reading the forum guidelines as they tell you that in order to get an answer, you'll need to ask a clear question with sufficient information (a few random screenshots, missing from your original post, are not really enough).
4. I suggest you start with talking to your supervisor.

Thanks,

Andrew.