Originally Posted by
mixedgas
If you feel you must do R2R, PM me, I'll donate you a few dac chips if we can get them through SA customs. Maxim and AD send me free samples because I work at a university, AD has limits but Maxim doesnt seem to care if they have it in stock. 16 bit resistor dacs get noisey fast from thermal noise . If you feel you must build a dac, I have better ways then simple r2r ladders. You really want to use small cheap current sources made from diodes and npns if you must build your own over 8 bits. I can scan in schematics if you MUST go that way.
Mixedgas