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Replacement for Fluke 700013 IC (quad SPST analog switch)

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JoergR:
Just got recommended this on eBay - seems like someone is already going to production with this ;-)
It uses a DG212 and an unidentified second chip - likely a uC?

Kleinstein:
The task for the logic is not really suited for a µC (needs to react quite fast, e.g. some 300-1000 ns for the latch pulse). Possible, but I would more expect some PLD / CPLD - though here the 5 V compatibility could be tricky.

JoergR:
Something like an ATF16V8, maybe? Those are 5V.

Kleinstein:
The PLD looks plausible and should work.

Dakkahun:
Hello.
I found some information about the development process of that clone:
https://groups.io/g/Fluke-DMM/topic/8840a_project_130007_clone/80985930?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,80985930
and
https://groups.io/g/Fluke-DMM/topic/fluke_8840a_8842a_8840af/83314606?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,83314606

The final solution uses a "Custom preprogrammed CMOS logic."

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