Connecting Referenced Single-Ended Voltage Signals to
the NI-9206
Refer to the following figure to connect referenced single-ended (RSE) signals to the
NI-9206.
Figure 4.
Connecting RSE Voltage Signals
NI-9206
MUX
PGIA
ADC
V
1
V
2
COM
AI1
AI0
–
–
+
+
In an RSE configuration, the NI-9206 measures each channel with respect to COM. To
connect RSE signals to the NI-9206, you must connect the voltage ground signal to
COM to keep the maximum working voltage in the specified range.
Note
If you leave COM unconnected, the signals float outside the working
input range of the NI-9206. This may result in unreliable measurements
because there is no way to ensure that the input signal is within 10 V of
COM.
Connecting Non-Referenced Single-Ended Voltage
Signals to the NI-9206
Refer to the following figure to connect non-referenced single-ended (NRSE) signals
to the NI-9206.
Figure 5.
Connecting an RSE Voltage Signal to the NI-9206
NI-9206
MUX
PGIA
ADC
V
1
V
2
COM
AI1
AISENSE
AI0
+
+
–
–
ni.com
6
NI-9206 Getting Started
