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Q&A AD8420 port surge protection

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AD8420 port surge protection

lijie on Jul 23, 2020

Dear team.
For AD8420 port surge protection, what is the appropriate protection voltage for TVS?

0 Fdelaram

on Jul 27, 2020 1:22 AM
Hi,

The differential input voltage range of AD8420 is +/-1V.
The 50 Ohms resistor converts the sense current which is specified to 4mA to 20mA.

Hence, 20mA * 50 Ohms = 1V.

Thanks and regards.
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