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Q&A ADuM1401 input

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ADuM1401 input

tonyhaywood on Nov 5, 2015

Input D is shown as schmidt in fig 2. I have slow input rise time input signal and ouput freq is not same as input.

What is the max rise time allowed on this input?

0 ADIApproved on Nov 5, 2015 11:56 PM over 5 years ago

Hello Tony,

The recommended maximum input rise time is 1 ms. Can you provide an oscilloscope plot showing the input and output signals you're observing?

DaveC
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0 tonyhaywood on Nov 6, 2015 4:10 AM over 5 years ago

Thanks Dave, that explains it. I assumed it being schmidt, any rise time would be tolerated.

I am filering a low freq square wave to get rid of noise so I'll try raing cutoo freq

Tony
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