National Instruments NI USB-6008 User Manual And Specifications

National Instruments NI USB-6008 User Manual And Specifications

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USER GUIDE AND SPECIFICATIONS
NI USB-6008/6009
Bus-Powered Multifunction DAQ USB Device
This user guide describes how to use the National Instruments USB-6008 and National Instruments
USB-6009 data acquisition (DAQ) devices and lists specifications.
The NI USB-6008/6009 provides connection to eight single-ended analog input (AI) channels, two
analog output (AO) channels, 12 digital input/output (DIO) channels, and a 32-bit counter with a
full-speed USB interface. Table 1 compares the devices.
Feature
AI resolution
Maximum AI sample rate,
*
single channel
Maximum AI sample rate,
multiple channels (aggregate)
DIO configuration
* System-dependent.
† This document uses NI-DAQmx naming conventions. Open-drain is called open collector and push-pull is called
active drive.
Français
Deutsch
ni.com/manuals
Table 1. NI USB-6008 and NI USB-6009 Comparison
NI USB-6008
12 bits differential,
11 bits single-ended
10 kS/s
10 kS/s
*
Open collector
NI USB-6009
14 bits differential,
13 bits single-ended
Each channel individually
programmable as open collector
or active drive
48 kS/s
48 kS/s

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  • Page 1 Français Deutsch ni.com/manuals This user guide describes how to use the National Instruments USB-6008 and National Instruments USB-6009 data acquisition (DAQ) devices and lists specifications. The NI USB-6008/6009 provides connection to eight single-ended analog input (AI) channels, two analog output (AO) channels, 12 digital input/output (DIO) channels, and a 32-bit counter with a full-speed USB interface.
  • Page 2: Table Of Contents

    Figure 1 shows key functional components of the NI USB-6008/6009. External Vbus +5 V/200 mA Power Supply PFI 0 USB Microcontroller P1.<0..3> P0.<0..7> +2.5 V/CAL 8 Channel 12/14b ADC AI <0..7> 12b DAC AO 0 12b DAC AO 1 Figure 1. NI USB-6008/6009 Block Diagram Contents Safety Guidelines..........................
  • Page 3: Safety Guidelines

    Do not operate the NI USB-6008/6009 in a manner not specified in this document. Misuse of the device can result in a hazard. You can compromise the safety protection built into the device if the device is damaged in any way. If the device is damaged, contact National Instruments for repair. Caution Do not substitute parts or modify the device except as described in this document.
  • Page 4: Unpacking

    Changes or modifications not expressly approved by National Instruments could void the user’s authority to operate the hardware under the local regulatory rules. Unpacking The NI USB-6008/6009 device ships in an antistatic package to prevent electrostatic discharge (ESD). ESD can damage several components on the device. Caution Never touch the exposed pins of connectors.
  • Page 5 After you label the screw terminal connector plugs, you must only insert them into the matching connector jack, as indicated by the overlay label on the device. Plug one end of the USB cable into the NI USB-6008/6009 and the other end into an available USB port on the computer.
  • Page 6: Using The Ni Usb-6008/6009 In An Application

    Double-click the Measurement & Automation icon, shown at left, on the desktop to open Measurement & Automation Explorer (MAX). Expand My System»Devices and Interfaces and verify that the NI USB-6008/6009 is listed. If your device does not appear, press <F5> to refresh the view in MAX. If your device is still not recognized, refer to for troubleshooting information.
  • Page 7: Features

    USB Connector and USB Cable Strain Relief The NI USB-6008/6009 features a USB connector for full-speed USB interface. You can provide strain relief for the USB cable by threading a zip tie through the USB cable strain relief ring and tightening around a looped USB cable, as shown in Figure 5.
  • Page 8: Led Indicator

    LED Indicator The NI USB-6008/6009 device has a green LED indicator that indicates device status, as listed in Table 3. When the device is connected to a USB port, the LED blinks steadily to indicate that the device is initialized and is receiving power from the connection.
  • Page 9: Cables And Accessories

    Cables and Accessories Table 4 contains information about cables and accessories available for the NI USB-6008/6009. For a complete list of accessories and ordering information, refer to the pricing section of the NI USB-6008 or NI USB-6009 product page at ni.com...
  • Page 10 +2.5 V External Reference section for more information. +5 V Output +5 V Power Source—Provides +5 V power up to 200 mA. Refer to the +5 V Power Source section for more information. NI USB-6008/6009 User Guide and Specifications ni.com...
  • Page 11: Analog Input

    Analog Input The NI USB-6008/6009 has eight analog input channels that you can use for four differential analog input measurements or eight single-ended analog input measurements. Figure 7 shows the analog input circuitry of the NI USB-6008/6009. +2.5 V AI FIFO 30.9 kΩ...
  • Page 12: Floating Signal Sources

    The input signal is low level and requires greater accuracy. • The leads connecting the signal to the device are greater than 3 m (10 ft). • The input signal requires a separate ground-reference point or return signal. NI USB-6008/6009 User Guide and Specifications ni.com...
  • Page 13: Ground-Referenced Signal Sources

    The input signal requires a separate ground-reference point or return signal. • The signal leads travel through noisy environments. • Two analog input channels, AI+ and AI–, are available for the signal. © National Instruments Corporation NI USB-6008/6009 User Guide and Specifications...
  • Page 14: Taking Differential Measurements

    ±10 V with respect to GND. For example, if AI 1 is +10 V and AI 5 is –10 V, then the measurement returned from the device is +20 V. AI 1 AI 5 Result –5 –10 –15 –20 Figure 9. Example of a Differential 20 V Measurement NI USB-6008/6009 User Guide and Specifications ni.com...
  • Page 15: Taking Referenced Single-Ended Measurements

    Figure 10. Exceeding ±10 V on AI Returns Clipped Output Taking Referenced Single-Ended Measurements To connect referenced single-ended (RSE) voltage signals to the NI USB-6008/6009, connect the positive voltage signal to an AI terminal, and the ground signal to a GND terminal, as shown in Figure 11.
  • Page 16: Analog Output

    Connecting Analog Output Loads To connect loads to the NI USB-6008/6009, connect the positive lead of the load to the AO terminal, and connect the ground of the load to a GND terminal, as shown in Figure 13.
  • Page 17: Digital I/O

    Digital I/O The NI USB-6008/6009 has 12 digital lines on two ports, Port 0 has eight lines, P0.<0..7>, and Port 1 has four lines, P1.<0..3>. GND is the ground-reference signal for the digital I/O ports. You can individually program all lines as inputs or outputs.
  • Page 18: Source/Sink Information

    Source/Sink Information The default configuration of the NI USB-6008/6009 digital I/O ports is open collector, allowing 5 V operation, with an onboard 4.7 kΩ pull-up resistor. An external user-provided pull-up resistor can be added to increase the source current drive up to a 8.5 mA limit per line as shown in Figure 15.
  • Page 19: I/O Protection

    Static DIO Each of the NI USB-6008/6009 DIO lines can be used as a static DI or DO line. You can use static DIO lines to monitor or control digital signals. All samples of static DI lines and updates of DO lines are software-timed.
  • Page 20: External Reference And Power Source

    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.
  • Page 21 Output range ............0 to +5 V Output impedance ..........50 Ω Output current drive ..........5 mA Power-on state............0 V System noise measured at maximum sample rate. Input voltages may not exceed the working voltage range. © National Instruments Corporation NI USB-6008/6009 User Guide and Specifications...
  • Page 22 +2.5 V output (1 mA maximum) ......+2.5 V +2.5 V accuracy .............0.25% maximum Reference temperature drift ........50 ppm/°C maximum This document uses NI-DAQmx naming conventions. Open-drain is called open collector and push-pull is called active drive. NI USB-6008/6009 User Guide and Specifications ni.com...
  • Page 23 Without connectors ........63.5 mm × 85.1 mm × 23.2 mm (2.50 in. × 3.35 in. × 0.91 in.) With connectors ..........81.8 mm × 85.1 mm × 23.2 mm (3.22 in. × 3.35 in. × 0.91 in.) © National Instruments Corporation NI USB-6008/6009 User Guide and Specifications...
  • Page 24 Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics. Caution Do not use this module for connection to signals or for measurements within Measurement Categories II, III, or IV. NI USB-6008/6009 User Guide and Specifications ni.com...
  • Page 25 For EMC declarations and certifications, and additional information, refer to the Environmental Management section. CE Compliance This product meets the essential requirements of applicable European Directives as follows: • 2006/95/EC; Low-Voltage Directive (safety) • 2004/108/EC; Electromagnetic Compatibility Directive (EMC) © National Instruments Corporation NI USB-6008/6009 User Guide and Specifications...
  • Page 26 For information about the available collection and recycling scheme in a particular country, refer to ni.com/citizenship/weee National Instruments (RoHS) National Instruments RoHS ni.com/environment/rohs_china (For information about China RoHS compliance, go to ni.com/environment/rohs_china NI USB-6008/6009 User Guide and Specifications ni.com...
  • Page 27: Where To Go From Here

    NI-DAQmx and NI-DAQmx 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.
  • Page 28 The NI-DAQmx Base VI Reference Help contains VI reference and general information about measurement concepts. In LabVIEW, select Help»NI-DAQmx Base VI Reference Help. The NI-DAQmx Base C Function Reference Help contains C reference and general information about measurement concepts. In Windows, select Start»All Programs»National Instruments»NI-DAQmx Base»Documentation»C Function Reference Help. Note...
  • Page 29 Select Start»All Programs»National Instruments»NI-DAQ»NI-DAQmx Help. The NI-DAQmx C Reference Help describes the NI-DAQmx Library functions, which you can use with National Instruments data acquisition devices to develop instrumentation, acquisition, and control applications. Select Start»All Programs»National Instruments»NI-DAQ» Text-Based Code Support»NI-DAQmx C Reference Help.
  • Page 30: Where To Go For Support

    National Instruments corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. National Instruments also has offices located around the world to help address your support needs. For telephone support in the United States, create your service request at and follow the calling instructions or dial 512 795 8248.

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