[sdiy] On the CD4007 switch thing

[Barry Klein]

I asked National Semi if they
knew about the CD4007 article.
Now this makes me feel old...:

In response to your request:

Were sorry, we don't have any records or personnel going back that far?



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Customer Support Center
National Semiconductor Corporation
http://www.national.com

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Please provide a detailed explanation of your technical question?
Anyone remember a circuit in 1978 using a CD4007 in an Electonics magazine
design note that had the part in the negative input and feedback of an op
amp? It resulted in acceptance of signals beyond the part VCC and had very
little pop on switchovers with low distortion.