[sdiy] CD405x series power supply question

[Dave Manley]

Doesn't Prophet-5 do this so the analog switches can be on an opamp virtual ground?  I seem to remember a slightly negative supply generated and used for this purpose.

-Dave  

-------- Original Message --------
 From: The Old Crow <oldcrow at oldcrows.net>
 Sent: Tue, Apr 30, 2013 04:45 PM
 To: synth-diy at dropmix.xs4all.nl
 CC: 
 Subject: [sdiy] CD405x series power supply question

>   Hey folks, Crow here.  The specs for the 4052 state an supply voltage 
>range of 20V for Vee=Vss=0V, and 18V for Vee=-Vdd using split dual 
>supplies (+/-9V).  I have a case where I need to bias the Vee down about 
>1V, creating a 16V supply interval.  While I think this is safe, I have 
>blown these parts up before with supply voltage games and wanted to ask 
>if anyone has tinkered with small negative values for Vee on the 
>4051/4052/4053.  I usually use the DG508/509 for this sort of thing, but 
>those parts are 8 times as pricey as a 4052 and I am using 2 of them on 
>a project as part of two VC ADSR circuits.
>
>Crow
>/**/
>
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