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ADUM5400 EMI reduction

Question asked by FalkB on May 11, 2015
Latest reply on May 12, 2015 by bkennedy

Hello AD-Team,


I have a card with 4 isolated output ports. Every port uses two ADUM5400 with 8 channels in total. I read AN-0971 and I think I got the point. But to further reduce radiation and noise, I would like to disable the ISO-Power Converter of one of the two ADUM5400 on each port. Is this possible? As far as I understand from the datasheet, the ISO-power converter ist completely independent from the  logic part. So I can power down the ISO-Converter (connect VDD1/pin1 to GND, leave VISO/pin16 open) and power the second IC from the first one.

Is this feasable?