The Spec tells :
Note To ensure proper device operation, DC-coupled channels on the NI 5761 must see 50Ω at DC
looking back at their source. If you are connecting a to source with an output impedance less than 50 Ω,
you can add series resistance close to the source to properly bias the NI 5761 input terminals.
You can also use the NI 5761 input channel bias DACs
to remove DC offset
present in the system.
For more information about progr
amming the bias DACs, refer to
the NI 5761 CLIP topics in the
NI FlexRIO Help
Sorry for the formatting ....
Greetings from Germany
Henrik
LV since v3.1
“ground” is a convenient fantasy
'˙˙˙˙uıɐƃɐ lɐıp puɐ °06 ǝuoɥd ɹnoʎ uɹnʇ ǝsɐǝld 'ʎɹɐuıƃɐɯı sı pǝlɐıp ǝʌɐɥ noʎ ɹǝqɯnu ǝɥʇ'