Sean Breheny wrote:
> In this case, that is probably what I will do. However, it just got me
> thinking about how this could be handled in situations where the noise
> levels were lower (for example, imagine that somehow you had a signal
> source with only 0.1uV noise - it is then challenging to design an
> audio amplifier which has a lower noise, especially at the low end of
> the spectrum.
>
> Sean
>   

Rockwell has a new amplifier that can do that. It's similar to this 
device they use for motion control:
<http://youtube.com/watch?v=TuhYd9L_d7w>

-
Martin
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