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???

Parents Reply
  • 0
    •  Analog Employees 
    on Jul 31, 2019 8:30 AM in reply to ManseungYoo

    Hi,

    Yes, you do not usually measure a floating inputs as the inputs are floating you do not know exactly what value are you trying to measure since it could float to any value. Why do you have to measure it anyway? May I know what is your application? If you are bothered with floating inputs, It would be best to connect it to GND when unused to ensure that it will stay at a known level and within specified input range.  

    Thanks,

    Jellenie

Children