At 06:15 PM 1/19/2006, you wrote:
>I am in need of a stand alone 16 bit
>A/D converter
Geoff,

One option worth considering is the 24-bit A/D made by Symetric 
Technology.  The owner is Kip Wyss and he's been designing A/D 
converters for 20 years.  He sells a 1-channel system that connects 
via the parallel port and the cost is only 
$150.  See:  http://www.symres.com/products/seldaq.htm

If you want very precise timing, then you can also get a GPS module, 
but that jumps the price up quite a bit.

I've only spent a little time trying out the sample program that 
comes with the 1-channel system.  You definitely have complete 
control over all aspects of the A/D, but I haven't gotten into any of 
the details.

Hope this helps,
John 


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