This 9-bit DAC circuit was found in the RCA CMOS integrated circuits manual of the 1970s. The circuit operates at 15 V and consumes between 70 and 200 mW. The currents at each outlet are approximately 400 uA.
This circuit was suggested by Popular Elecronics from the 90's. The circuit has high input...
Figure 1 shows a circuit than can be used as time stage in timers, and other applications....
This circuit is from a Popular Electronics from 1993. The magazine is no longer printed, but the...