AD5413 - series resistance

Do I need to add some series resistance to each voltage sense input to provide some extra protection to the AD5413?

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  • +1
    •  Analog Employees 
    on May 6, 2020 11:20 AM

    There are 2MΩ resistors from each sense line to the VIOUT line to allow operation if the VSENSE+ or VSENSE- wires fall off. There are line protectors on the sense lines that clamp if the voltage exceeds the supply rails.

    ADI recommends addition of extra series resistance for the SenseN and SenseP pins. The purpose is to enhance the Robustness of the sense pins (in particular to Surge where the on-PCB TVS may walk out > 60V). Currently 1K is a recommended number.

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  • +1
    •  Analog Employees 
    on May 6, 2020 11:20 AM

    There are 2MΩ resistors from each sense line to the VIOUT line to allow operation if the VSENSE+ or VSENSE- wires fall off. There are line protectors on the sense lines that clamp if the voltage exceeds the supply rails.

    ADI recommends addition of extra series resistance for the SenseN and SenseP pins. The purpose is to enhance the Robustness of the sense pins (in particular to Surge where the on-PCB TVS may walk out > 60V). Currently 1K is a recommended number.

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