[time-nuts] how to find low noise transistors

Alex Pummer alex at pcscons.com
Sat Jul 18 09:34:48 EDT 2015


noise figure, noise voltage, noise current: 
http://www.ti.com/lit/an/slyt094/slyt094.pdf


On 7/18/2015 2:16 AM, Attila Kinali wrote:
> On Fri, 17 Jul 2015 23:25:10 -0400
> Charles Steinmetz <csteinmetz at yandex.com> wrote:
>
>> A pair of Zetex (Diodes, Inc.)
>> ZTX849 or FZT849 actually have significantly lower voltage noise than
>> either the LM394 or MAT12.
> I always wonder how you figure out whether a transistor is low noise
> or not. What part of the datasheet hints at which transistors have low
> noise and which have not? Even if it's just try and measure, how
> do you find good candidates to measure?
>
> 			Attila Kinali
>



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