> If you've not seen them Burr-Brown (now part of TI) do a range of
> touchscreen interfaces for 4 and 5 wire units. The 4-wire
> version is ADS7843
>
>
http://www.burr-brown.com/cgi-bin/WebObjects/BurrBrown.woa/wa/displayProduct
Folder?productName=ADS7843
>
> The other models are ADS7845 and 7846.

Looks a nice chip but the price is $3.95 in quantities of 1000 which is the
cost of another PIC chip.
This would add a large percentage to my component costs. O.K. for one offs
but not for higher volumes as I think you can do just as good with a PIC and
have control over it.

I may still buy one to see how good it really is.

Pete

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