NI USB-9264 User Guide and Specifications
12
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Wiring for High-Vibration Applications
If an application is subject to high vibration, National Instruments
recommends that you use the NI 9940 backshell kit to protect the
connections. Refer to Figure 3 for an illustration of the NI 9940 connector
backshell.
Specifications
The following specifications are typical for the range –40 to 70 °C
unless otherwise noted. All voltages are relative to COM unless otherwise
noted.
Output Characteristics
Number of channels................................16 analog output channels
DAC resolution.......................................16 bits
Type of DAC ..........................................String
Output range
Minimum .........................................±10.35 V
Typical.............................................±10.5 V
Maximum ........................................±10.65 V
Current drive...........................................±16 mA all channels max;
±4 mA per channel typ
Power-on output state .............................Channels off
Startup voltage ........................................0 V
1
Power-down voltage ...............................0 V
2
Output impedance...................................2.0
Ω
1
When the module powers on, a glitch occurs for 20 ms peaking at 500 mV.
2
The power-down voltage peaks at 1.7 V, then exponentially discharges to 0 V in 200 ms. You can add a load to reduce peak
voltage.