AD4112's VIN0~VIN7 measured voltage 200mV~500mV when no input signal.

AD4112's VIN0~VIN7 measured voltage 200mV~500mV when no input signal.
It's serious problem...
I don't know what's the problem.
my schematic is following :


what's wrong???

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  • 0
    •  Analog Employees 
    on Jul 31, 2019 6:55 AM

    Hi,

    What do you mean by no input signal? Is that mean you have a floating inputs? If you are measuring a floating inputs, well that's the problem. Or do you mean you have a differential input voltage of 0V and see this offset value? May I know how exactly did you measured this value? 

    Thanks,

    Jellenie 

Reply
  • 0
    •  Analog Employees 
    on Jul 31, 2019 6:55 AM

    Hi,

    What do you mean by no input signal? Is that mean you have a floating inputs? If you are measuring a floating inputs, well that's the problem. Or do you mean you have a differential input voltage of 0V and see this offset value? May I know how exactly did you measured this value? 

    Thanks,

    Jellenie 

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