gouzou
Junior Member level 1
As said, I want to measure the input and output referred noise of an amplifier in practice.
I have some thoughts and want to share them to see if they hold true.
Assume a single ended input, single ended output amplifier.
Should i do it like,
1) short the input
2) measure the power spectral density (which is actually noise) vs freq at output with a signal analyzer (units dbm/hz), which gives the output referred noise
3) translate (2) into nV/rootHz, divide by gain and take the input referred noise?
Thanks
I have some thoughts and want to share them to see if they hold true.
Assume a single ended input, single ended output amplifier.
Should i do it like,
1) short the input
2) measure the power spectral density (which is actually noise) vs freq at output with a signal analyzer (units dbm/hz), which gives the output referred noise
3) translate (2) into nV/rootHz, divide by gain and take the input referred noise?
Thanks