AD42020-1 Datasheet? - diyAudio
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Old 2nd November 2014, 03:26 PM   #1
RJM1 is offline RJM1  United States
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Join Date: Jan 2010
Location: Titusville, Fl.
Default AD42020-1 Datasheet?

I was looking for some parts in my garage today and I found a bag of 50 AD42020-1 IC's. I can't find a datasheet ( about 30 years old ). Does anyone know what they are, or have a datasheet?

See pic.

I wonder why I kept them.

I think that they were 175 to 200MHZ vfb opamps that ran from +-6V supplies.
I still am looking for a datasheet.
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File Type: jpg AD42020-1.JPG (116.9 KB, 25 views)

Last edited by RJM1; 2nd November 2014 at 07:18 PM. Reason: memory comming back
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Old 4th November 2014, 02:48 PM   #2
oshifis is offline oshifis  Hungary
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Join Date: Mar 2004
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I found this part in the Fluke 6080A Service Manual, it is an Analog Multiplier.

and

FS: AD42020-1 for Counterpoint SA-220 output board

Last edited by oshifis; 4th November 2014 at 02:50 PM.
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Old 4th November 2014, 04:52 PM   #3
RJM1 is offline RJM1  United States
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Location: Titusville, Fl.
Thanks, now I remembered why I kept them, I was working for a video projector manufacturer back in the 80's and they were using these on the registration board. These had too much dc offset to use in their application but the offset was well within spec, So I kept them.
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