Using a 16 bit ADC chip with arduino I need to measure voltage between 0-10 volts using my Arduino Due.  I have an ADS7805p chip, which I believe will work, but am not sure how to wire it on my breadboard.  I'm used to just using the chip on the arduino, but that only goes 0-5 volts and I can't loose the resolution by converting.  Can someone, please, point me to or instruct me on how to wire something like this to my arduino?
The ADS7805 is old but still a pretty good ADC. I could imagine that you just have a few lying around that you want to use. I would simply wire it to two parallel in / serial out chips like the 74HC589 or CD4021 as used in this example:
http://www.arduino.cc/en/Tutorial/ShiftIn  

Start the conversion as described in Duncan C's answer and then simply clock in all 16 bits. I think you could then probably get away with 4 or 5 control lines.