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Noise performance analysis

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bageduke

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I posted this on analog circuit design section, but didn't get too many replies. Can someone help me out of this?

I'd like to compare noise performance of following two circuits. With comparable parameters, which one has better noise performance at Vout?

Thanks a lot

Added after 2 minutes:

forgot the link of it
 

I don't know why, but system didn't allow me to re-post diagrams.
 

Noise comes from the source so the left circuit will be more noise than right circuit.
 

Can you explain why noise comes from source will be more noisy?
 

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