Re: The Larkin front end
- From: Eeyore <rabbitsfriendsandrelations@xxxxxxxxxxx>
- Date: Wed, 08 Nov 2006 15:55:59 +0000
SioL wrote:
"Eeyore" <rabbitsfriendsandrelations@xxxxxxxxxxx> wrote
Consider the inherent rejection of common mode signals in a differential front end. It
doesn't work so well if the signals are different sizes ( rather obviously ).
I'll use 1% caps here too.
Graham
I think I understand John.
If the first stage is a balanced opamp input, its a biq question how "balanced" its function
is as a rf detector, the interference signals are likely way out of the operational range
of that opamp. Thermocouple sounds like a very slow device. Pretty much killing
anything even remotely RF should work pretty well.
A ferrite bead won't do that.
Graham
.
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