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ADUM1441 DC Offset difference between Input and Output signals

Hello,

I am using a EVAL-ADUM1441EBZ evaluation board.

I powered the VDD1=3.3V and VDD2 = 2.5V

EN1 and EN2 are floated (not connected to vcc or GND)

Digital input (Via) 50KHz.

The digital input signal is between 0V to 3.3V

The output signal is looks as AC coupled  - between  (-~1V) to (~1V)

Is the DC offset correctness guaranteed in this state?

How can I correct a DC offset levels between input and output?

Are there EN1 and EN2 mast be tied to any level (GND or VCC) or can I stay it floated?

Stayind EN1 and EN floated, the device will function properly?

Thanks

Meir

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