> http://www.fairchildsemi.com/ds/MM/MM74HC4053.pdf
    > +/- 7.5 seems to be abs. max.

    I was looking at the TI version, this Fairchild part is considerably
    better, and in fact meets the specs for what I need.  A couple of these
    does the trick.  Thanks.

You may want to get CD4053B parts rather than the 74HC parts.  The 4000
series has always had a wider supply range than the 74HC part, and I expect
the analog multiplexor voltages go up accordingly...  (And since fairchild
makes a 4053, I'll bet there 74HC part is the same as that, where as TI's
part is perhaps true 74HC technology.)

BillW

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