AD7960 analog inputs current

Data sheet, on absolute maximum ratings table, states maximum input current to any pin except supplies is 10mA. However, on page 15 on the section on analog inputs, it says the protection diodes at each input can handle 130mA if the voltage inputs exceed their forward conduction threshold.

So, is it safe to infer the analog inputs can stand a current higher than the 10mA of the aforementioned table?



added question mark
[edited by: EVC at 10:04 PM (GMT 0) on 6 May 2020]
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    •  Analog Employees 
    on May 6, 2020 11:17 PM 11 months ago

    EVC,

    As noted below the absolute maximum ratings table the transient level of current supported is approximately 100mA.  Thus I would suspect that the ratings quoted for the input diodes are for a transient (short duration) current spike.   However, to be certain I will check with the design team to see if this assumption is incorrect and that the datasheet needs to be clarified.

    Regards

    Sean

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  • 0
    •  Analog Employees 
    on May 6, 2020 11:17 PM 11 months ago

    EVC,

    As noted below the absolute maximum ratings table the transient level of current supported is approximately 100mA.  Thus I would suspect that the ratings quoted for the input diodes are for a transient (short duration) current spike.   However, to be certain I will check with the design team to see if this assumption is incorrect and that the datasheet needs to be clarified.

    Regards

    Sean

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