Help with current limitations on NI-DAQ 6008

Discussion in 'General Electronics Chat' started by vijaybala85, Jan 13, 2010.

  1. vijaybala85

    Thread Starter Member

    Jan 7, 2010
    92
    0
    Hi,

    I was just wondering if someone knows the current limitations on the NI-DAQ USB 6008 , for each of the channels (both analog I/o and digital I/0) went through the data sheet, but unable to determine each channels limit.

    Thanks!

    V
     
  2. pdman

    New Member

    Jan 12, 2010
    4
    0
    Did you try going to NI.com and posting there?
    There is a user's area where you can post questions that are answered by NI users.
     
  3. pdman

    New Member

    Jan 12, 2010
    4
    0
    from the manual:
    The default configuration of the NI USB-6008/6009 DIO ports is open
    collector, allowing 5 V operation, with an onboard 4.7 k​
    Ω 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.
    The NI USB-6009 ports can also be configured as active drive using the
    NI-DAQmx API, allowing 3.3 V operation with a source/sink current limit
    of ±8.5 mA. Refer to the
    NI-DAQmx Help for more information about how

    to set the DIO configuration.

    Full manual here with more specs:
    http://www.ni.com/pdf/products/us/371728b.pdf
     
  4. vijaybala85

    Thread Starter Member

    Jan 7, 2010
    92
    0
    Thanks! :)
     
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