hyleeinhit
Member level 3

Hi,
I have a question about SNR (signal-noise-ratio) change. If a current with SNR=x passes a noiseless current mirror. The current mirror scale factor is A (A can be larger or lower than 1). How's the current mirror output SNR? maintain the same or change by A. More specific question: what is the change factor of input noise?
I think the same question can be extended to a broad one: A input signal with SNR =x passes a gain A noiseless circuit. At the output, how's the noise change and how does the SNR change? Thanks.
I have a question about SNR (signal-noise-ratio) change. If a current with SNR=x passes a noiseless current mirror. The current mirror scale factor is A (A can be larger or lower than 1). How's the current mirror output SNR? maintain the same or change by A. More specific question: what is the change factor of input noise?
I think the same question can be extended to a broad one: A input signal with SNR =x passes a gain A noiseless circuit. At the output, how's the noise change and how does the SNR change? Thanks.