National Instruments 6008 User Manual And Specifications

Contents

National Instruments 6008 User Manual And Specifications Manual pdf 12 page image

NI USB-6008/6009 User Guide and Specifications 12 ni.comLEDThe NI USB-6008/6009 device has a green LED next to the USBconnector. When the device is connected to a USB port, the LED blinkssteadily to indicate that the device is initialized and is receiving power fromthe connection.If the LED is not blinking, it may mean that the device is not initialized orthe computer is in standby mode. In order for the device to be recognized,the device must be connected to a computer that has NI-DAQmx installedon it. If your device is not blinking, make sure your computer has the latestversion of NI-DAQmx installed on it, and the computer is not in standbymode.Analog InputYou can connect analog input signals to the NI USB-6008/6009 throughthe I/O connector. Refer to Table 5 for more information about connectinganalog input signals.Analog Input CircuitryFigure 6 illustrates the analog input circuitry of the NI USB-6008/6009.Figure 6. Analog Input CircuitryMUXThe NI USB 6008/6009 has one analog-to-digital converter (ADC). Themultiplexer (MUX) routes one AI channel at a time to the PGA.AI+2.5 VREF39.2 kΩ127 kΩ30.9 kΩ PGAInput RangeSelectionAI FIFOADCMUX