ADuM2401 output driving 2m cable

Document created by analog-archivist Employee on Feb 23, 2016
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I have to drive a long cable (about 2m) with the ADuM2401 output  signals,
synchronuos transmission and low speed (1Kb/s); any driving problems (cable
capacitance, current, ringing,...) ? Any suggestions  ?


The maximum recommended output capacitance is 15 pF  (a typical 2m cable might
have a capacitance of 200 pF). The part can actually source a decent DC load,
so higher capacitance at very low data rates might be OK. However the output
edge rates are relatively fast (2-3 ns) so there would likely be reflections.

You may want to consider an interface device specifically designed to drive

Please also have a look into the following documentation :