National Instruments 6023E, 6024E, 6025E Analog Output Signal Connections

Chapter4 SignalConnections
©NationalInstruments Corporation 4-19 6023E/6024E/6025EUser Manual
Figure 4-8 showshow to connect a grounded signal source to a channel
configuredfor NRSE mode.
Figure 4-8. Single-EndedInput Connections for Ground-Referenced Signals
Common-Mode Signal Rejection Considerations
Figures 4-5 and 4-8 show connections for signal sources that are already
referencedto some ground point with respect to the device. In these cases,
the PGIA can reject any voltage caused by ground potential differences
between the signal source and the device. In addition, with DIFF input
connections,the PGIA canreject common-mode noise pickup in the leads
connectingthe signal sources to the device. The PGIA can reject
common-mode signals as long as V+in and V–in (input signals) are both
within ±11 V of AIGND.
Analog Output Signal Connections
♦6024E and 6025E
The analog output signals are DAC0OUT,DAC1OUT,and AOGND.
DAC0OUTand DAC1OUT are not available on the 6023E. DAC0OUTis
the voltageoutp ut signal for analog output channel 0. DAC1OUTis the
voltageoutput si gnal for analog output channel 1.
Vs
+
+
+
–
–
–
VmMeasured
Voltage
ACH<0..15>
AIGND
Instrumentation
Amplifier
I/OConnector
AISENSE
Vcm
+
–
SelectedChannel in NRSE Configuration
Common-
Mode
Noise
andGround
Potential
Ground-
Referenced
Signal
Source PGIA
InputMultiplexers