Table 16. Filter Component Reference Designators
GPIC Input
R2
C1
C2
AI0±
R195, R207
C122
C121
AI1±
R219, R227
C142
C141
AI2±
R219, R226
C140
C139
AI3±
R194, R206
C120
C119
AI4±
R183, R170
C105
C104
AI5±
R138, R153
C88
C87
AI6±
R169, R182
C103
C102
AI7±
R137, R152
C86
C85
AI8±
R68, R75
C47
C46
AI9±
R107, R118
C70
C69
AI10±
R99, R116
C66
C65
AI11±
R80, R66
C50
C49
AI12±
R38, R50
C31
C30
AI13±
R12, R24
C14
C13
AI14±
R49, R37
C29
C28
AI15±
R23, R11
C12
C11
Note
For a different cut-off frequency, change only the filter capacitors while
keeping C1 and C2 of equal value.
Gain Stage
Each analog input channel has a gain stage immediately after the low pass filter. Gain can be
set as x1, x2, x3, and x4. The output of the gain stage will work correctly only if the input
voltage at the simultaneous AI connector is within the common mode and differential range
listed in the
sbRIO-9687 Specifications
for each selected gain.
The gain should be set to use as much of the GPIC input range as possible. When current
signals are converted to voltage with onboard current-sensing resistors, it is preferable to set
the gain to the maximum value so that power dissipation from resistors is minimized.
Refer to the following tables for information regarding simultaneous sampled AI gain
configuration and related DIP switch reference designators and contact assignments.
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sbRIO-9687 User Manual