NI USB-6000 User Guide
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© National Instruments
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11
Connecting Analog Input Signals
To connect voltage signals to the NI USB-6000, connect the positive voltage signal to an
AI terminal, and the ground signal to an AI GND terminal, as shown in Figure 6.
Figure 6.
Connecting a Referenced Single-Ended Voltage Signal
Signals of ±10 V at any analog input pin with respect to AI GND are accurately measured.
Beyond ±10 V, the input signal will begin clipping as shown in Figure 7. Typically, this clipping
begins at ±10.5 V.
Figure 7.
Exceeding
±
10 V on AI Returns Clipped Measurement Result
AI
NI U
S
B-6000
AI GND
Volt
a
ge
S
o
u
rce
20
–20
–15
–10
–5
0
Amplit
u
de (V)
5
10
15
AI 1
Re
su
lt
