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From: jcdrisc on 18 Feb 2010 23:04
On Feb 19, 1:26 am, John Fields <jfie...(a)austininstruments.com> wrote:
> On Wed, 17 Feb 2010 17:46:01 -0600, "Jon Slaughter"
>
> <Jon_Slaugh...(a)Hotmail.com> wrote:
> >Are there devices that are fet based and have optical isolation? e.g., maybe
> >something that uses a transformer to isolate the gate? I remember seeing, I
> >think from TI, some very small transformer isolation IC's and I imagine one
> >could combine this with a fet to get some pretty responsive isolation like
> >behavior(obviously in this cause it's not optics involved).
>
> ---http://www.fairchildsemi.com/ds/H1%2FH11F1M.pdf
>
> JF

I have used the H11F1 and H11F3 when it was first released by GE
The fet resistance depends on the diode current, so it can be used as
a
modulated resistance.

JCD
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