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N6733B, N6761A vs 6626A residual current

Question asked by jeffturp on Jul 31, 2013
Latest reply on Jan 17, 2014 by MattC
When measuring leakage current through a 34401 DMM using 6626A power supply the setup shows less than 1uA open circuit @ 4.2V. When using the same setup with N6733B or N6761A power supply modules the open circuit current is 92uA and 42uA respectively when power supply voltage is 4.2V.

Is this to be expected? The setup is sensed to the DUT using 18 gauge wire less than 2 meters in length.