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ADuM7640 keeps Hi-Z

Question asked by Osamu on Jun 26, 2015
Latest reply on Jul 24, 2015 by Osamu

Hello.

 

In Datasheet P18 table 19 : Truth table.

When VDDO is Unpowered, Vox Output is Hi-Z.

So I want to know that If VDDO voltage is slowly increasing or decrease, how much voltage dose it keep Hi-Z?

Because same voltage source and line device has UVLO at 2.5V. I don't want to input signal to the device at power off.

 

And  Dose it have a hysteresis?

 

Best  regard.

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