[sdiy] CD4051 working as Demux

[James Patchell]

You can only select one channel at a time with the 4051, so that is no 
problem, and when no channel is selected...well, all the switches are just 
open.  An example of using the 4051 as a demux can be seen in a lot of 
Midi->CV converter circuits.  The common terminal is driven by a DAC, and 
the 8 separate terminals will have sample/hold capacitors with a voltage 
follower.  Look at the circuit for the Paia Midi->CV converter and you will 
see how they did it.

At 11:18 AM 2/13/2005 -0800, you wrote:
>Hello List!!!
>
>How does the 4051 operate when being used as a Demux? Basically, my 
>concerns are about what does it do when more than one channel is selected 
>and when no channel is selected. Looking at the datasheet, it does not 
>seem to explain much about its functionallity as a demux.
>
>Thanks
>
>_____________________________________________________________
>www.deMadrid.com , el correo gratuito de Madrid. 25 Mb de espacio.

         -Jim
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