HEF4051B multiplexer protection

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edprog
Posts: 37
Joined: 27 Jan 2016 19:58

HEF4051B multiplexer protection

#1 Post by edprog » 23 Mar 2019 11:31

Hi

I am using the HEF4051B 8 channel analogue multiplexer as a switchable input to an ADC. The eight inputs goto a connector which then connects to the outside world. I was wondering about the protection you should provide for the HEF4051B? The HEF4051B does have internal protection circuit with clamping diodes. Is it ok to rely on this or should you use provide additional protection?
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petar.suknjaja
mikroElektronika team
Posts: 683
Joined: 05 Mar 2018 09:44
Location: Belgrade

Re: HEF4051B multiplexer protection

#2 Post by petar.suknjaja » 26 Mar 2019 08:41

Hi Ed,
I would always go with additional protection.
Also, on this link you can read about similar topic:
https://electronics.stackexchange.com/q ... ltage-foll
Kind regards,
Petar
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