Working Voltage Range - National Instruments DAQ X Series User Manual

Choose an input range that matches the expected input range of your signal.
A large input range can accommodate a large signal variation, but reduces
the voltage resolution. Choosing a smaller input range improves the voltage
resolution, but may result in the input signal going out of range.
For more information about setting ranges, refer to the NI-DAQmx Help or
the LabVIEW Help.
Table 4-5 shows the input ranges and resolutions supported by the
Simultaneous MIO X Series device family.
Table 4-5. Simultaneous MIO X Series Device Input Range and Nominal Resolution
Simultaneous MIO
X Series Device
NI 6356/6358/6366/6368

Working Voltage Range

On most Simultaneous MIO X Series devices, the PGIA operates normally
by amplifying signals of interest while rejecting common-mode signals
under the following three conditions:
•
•
•
If any of these conditions are exceeded, the input voltage is clamped until
the fault condition is removed.
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Input Range
–10 V to 10 V
–5 V to 5 V
–2 V to 2 V
–1 V to 1 V
The common-mode voltage (V
AI <0..x> GND from AI <0..x>–, must be less than ±10 V. This V
a constant for all range selections.
The signal voltage (V ), which is equivalent to subtracting AI <0..x>+
s
from AI <0..x>–, must be less than or equal to the range selection of
the given channel. If V is greater than the range selected, the signal
s
clips and information are lost.
The total working voltage of the positive input, which is equivalent to
(V + V ), or subtracting AI <0..x> GND from AI <0..x>+, must be
cm s
less than ±11 V.
4-43
Chapter 4
Nominal Resolution Assuming
5% Over Range
320 μV
160 μV
64 μV
32 μV
), which is equivalent to subtracting
cm
X Series User Manual
Analog Input
is
cm