vivkr
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Hi,
Is there an easy method of measuring/extracting the noise of a single device, or a small circuit built with a single transistor, and maybe resistors?
The typical problem is that noise is so small that one needs an elaborate amplifier which adds very little noise of its own, and this becomes a big design challenge. Also, the bandwidth of any amplifier used to boost up the noise of the DUT will then limit the ability to measure white noise of the DUT at high frequencies.
Typically, the parameters of interest in any noise measurement are the noise and gM of the device, so that one may correlate the observed noise vs. Gm and get a good idea of the way the real device noise correlates with the ideal expected noise (after noise from all other sources is somehow removed).
Any comments will be appreciated.
Thanks Vivek
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