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AD7858, voltage on analog input while powered down

Question asked by lmirkin on May 2, 2018
Latest reply on May 4, 2018 by Daryl_05

Hello,

 

According to the absolute maximum ratings, the analog input voltage must be in the range -0.3 V to AVDD + 0.3 V. Is a positive voltage on one of the analog inputs before the AD7858 is powered up likely to cause a problem? What is the input impedance of analog inputs when the device is powered down?

 

Thank you,

Leo

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