The Designer's Guide Community
Forum
Welcome, Guest. Please Login or Register. Please follow the Forum guidelines.
Mar 28th, 2024, 11:26am
Pages: 1
Send Topic Print
Noise characterization of transistors (Read 2010 times)
vivkr
Community Fellow
*****
Offline



Posts: 780

Noise characterization of transistors
May 07th, 2007, 5:18am
 
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
Back to top
 
 
View Profile   IP Logged
Pages: 1
Send Topic Print
Copyright 2002-2024 Designer’s Guide Consulting, Inc. Designer’s Guide® is a registered trademark of Designer’s Guide Consulting, Inc. All rights reserved. Send comments or questions to editor@designers-guide.org. Consider submitting a paper or model.