FADC progress? (fwd)

[Elton Smith <elton@jlab.org>]

---------- Forwarded message ----------
Date: Wed, 31 Jul 2002 16:21:50 -0400
From: Elliott Wolin <wolin@jlab.org>
To: Paul Smith <ptsmith@indiana.edu>
Cc: Elton Smith <elton@jlab.org>
Subject: FADC progress

Hi Paul,

A few questions came up at our Hall D mtg this morning.

What do you see as your near-term game plan for FADC development?  E.g. is
removing the noise ripple the top priority, or getting a DSP on board?  Where
does making a multi-channel board fit in?

Some of us think a multi-channel board should not be too far down the list due
to unexpected problems related to having many adc chips and associated circuitry
close together.  Most agree that eliminating the noise should be near the top.

Other issues were possible fadc chip improvements.  What is pushing the
technology these days?  What will be pushing it in say two years?  Will future
chips have more bits, or a faster sampling rate (i.e. for the same cost).   Will
it be possible to get more bits or faster sampling if you're willing to pay a
lot more per chip (e.g. if a group needs a small number of boards for some expt
they may be willing to pay more per channel)?

				Sincerely,
					Elliott
 

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Elliott Wolin
Stalag 602-11
Gulag ARC-ipelago

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