Ni usb-6001/6002/6003 User Guide National Instruments

Analog Input Range

Beyond ±10 V, the input signal begins clipping as shown in Figure 10. Typically, this clipping 

begins at ±10.5 V. 

Exceeding ±10 V on AI Returns Clipped Results

When no signals are connected to the analog input terminal, the input could be anywhere 

between +10.5 V and -10.5 V or may rail to ±10.5 V. This behavior is normal and does not affect 

the measurement when a signal is connected. For more information about field and wiring noise 

considerations for analog signals, go to 

ni.com/info

 and enter Info Code 

rdfwn3

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AI +

AI GND

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V

+

–

AI –

AI GND

diff

V

diff

+

–

CM

+

+

–

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Amplit

de (V)

10.5

–10.5

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ni.com

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NI USB-6001/6002/6003 User Guide

Multichannel Scanning Considerations

The NI DAQ device can scan multiple channels at high rates and digitize the signals accurately. 

However, you should consider several issues when designing your measurement system to 

ensure the high accuracy of your measurements.

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