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ADuM144x Family intrinsic Safety Certification

I have found the intrinsic safety certifications for ATEX and IECEx.  Is there a certification pending for the US and Canadian certification (UL/cUL 60079-11 or CSA 22.2).  These are outside the scope of the ATEX and IECEx certifications.  Acceptance by UL or CSA for intrinsic safety is critical for my applications.  We use optocouplers for isolation because we can verify their construction for creepage and clearance spacings.  Based on my review of the datasheet I don't know if i could verify this without testing, or without a construction drawing, perhaps CF0001 mentioned in the ATEX report.

Additionally what are the differences in the following pairs




The pin outs on pages 14-16 do not indicate any difference between the pairs of parts.
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