[sdiy] Sample and holds

[mark verbos]

try a DG442. It's a telecommunications analog switch. It is powered from +/- 15
and switches from 2 volts. The switching time is 250 ns worst case.

good luck!

mark

Paul Maddox wrote:

> Dear all,
>
> Im after a quick sample and hold,
> I need to aquire and sample in about 340nS (yes I did type NANOSECONDS)
> and hold for about 25 uS before drooping any..
> Im guessing a normal FET (4066,4067,4051) type of S&H probably wont be quick
> enough..
> any suggestions?
>
> I also need a one of 4 mux that will react well within this time (50nS
> 'ish), I guess Im going to be pushing a 4051
> to run this fast, though this isnt as major an issue as the S&H...
>
> Paul Maddox
> _______________________________________
> Wavesynth home page;-
>     Http://www.wavesynth.com
> Modulus synthesizers home page;-
>     Http://www.wavesynth.com/modulus

--
mark verbos

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