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ADuM1100 vs ADuM110N

Question asked by psaltarelli on Jul 4, 2017
Latest reply on Jul 6, 2017 by psaltarelli

Hello,

 

ADuM110N is suggested as a pin2pin replacement for ADuM1100.

The first one seems to have a feature which is not mentioned in the second's DS: fail-safe output.

 

Does ADuM1100 provides any mechanism of setting the outputs to a certain value, when inputs are disabled or power is not applied?

 

Concerning ADuM110N, two versions exist, '0' and '1' with different fail-safe behaviour, represented in

Figure 9 - Figure 10 - ADuM110N datasheet

How is this related to the fail-safe output? I just see that the carrier signal is activated on the high or low value of the input, but the signal transmitted does not change from one device to the other. How does this affect the final user?

 

Finally, assuming there's not fail-safe output mode in ADuM1100, what's the 'drop-in' replacement for it? ADuM110N0 or ADuM110N1?

 

Thanks,

Pietro Saltarelli,

FAE - Arrow Electronics

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