It could be stated like this depending on how "GND" is defined in the particular ckt. Some communication protocols (i.e. RS-232) state +5 - 12VDC = logic High
0 - -12VDC = Logic low.
Does anyone know some good sources for some digital pot devices?? IC's with very small form factors (SMA)??
Also, what would be the ideal methods in controlling the digital pot to read/adjust voltage at a certain test point of a ckt design?? Do you need a processor interface?? Can you just...
