The voltage suppliers: LT1085 is a 5V, the LT1084 a 3.3V, both high precision and very fast.
Details are here:
http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1040,C1055,P1278,D2603
Remenber the maximum input voltage of LT1084 is under the reference voltage of the CD66. A failure at wiring causes the damage of the LT1084 and the DAC! |