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Topic: 74LS138 Mux with two potentiometers (AD5206) (Read 1 time) previous topic - next topic


Can you post a schematic please. My concern is that a 74LS138 is a digital chip and I would not expect it to be used in this situation.


Hi Admins,

Actually, I figured it out. I am now using a "hex Inverter" to switch between the potentiometers. It does work because I only have two pots.

Thanks for your help



Jul 14, 2010, 12:39 am Last Edit: Jul 14, 2010, 12:41 am by fdufnews Reason: 1
To switch between potentiometers that are analog pieces, you should use an analog multiplexer like 4051 for example.
Look here for an explanation http://www.arduino.cc/playground/Learning/4051

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