> There are chips available to do just that and I am told by one of our > hardware engineers that the cost is about $100. I am sure there are > some odds and ends as far as support circuitry, but that would be > pennies compared to the converter chip. > > If you really want to know, I'll ask at work. > > Marv Marv, the last time I looked, it was $910.00 each for *one* 18 pin dip. g.