External Reference And Power Source; Where To Go From Here; Example Programs - National Instruments USB-6008 User Manual

requirements, refer to the NI USB-6008 Device Specifications and NI USB-6009 Device
Specifications documents available on .
ni.com/manuals

External Reference and Power Source

The NI USB-6008/6009 creates an external reference and supplies a power source. All
voltages are relative to ground (GND).
+2.5 V External Reference
The NI USB-6008/6009 creates a high-purity reference voltage supply for the ADC using a
multi-state regulator, amplifier, and filter circuit. You can use the resulting +2.5 V reference
voltage as a signal for self-test.
+5 V Power Source
The NI USB-6008/6009 supplies a 5 V, 200 mA output. You can use this source to power
external components.
Note When the device is in USB suspend, the output is disabled.

Where to Go from Here

This section lists where you can find example programs for the NI USB-6008/6009 and
relevant documentation.

Example Programs

NI-DAQmx and NI-DAQmx Base software include example programs to help you get started
programming with the NI USB-6008/6009. Modify example code and save it in an application,
or use examples to develop a new application, or add example code to an existing application.
NI-DAQmx
To locate NI software examples, go to and enter the Info Code .
ni.com/info daqmxexp
To run examples without the device installed, use an NI-DAQmx simulated device. For more
information, in Measurement & Automation Explorer (MAX), select Help»Help Topics»NI-
DAQmx»MAX Help for NI-DAQmx and search for simulated devices.
NI-DAQmx Base
NI-DAQmx Base examples are accessible from Start»All Programs»National Instruments»
NI-DAQmx Base Examples.
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