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© National Instruments Corporation 69 NI cDAQ-9172 User Guide and Specifications
Specifications
These specifications are for the NI cDAQ-9172 chassis only. These
specifications are typical at 25 °C unless otherwise noted. For the C Series
I/O module specifications, refer to the documentation for the C Series I/O
modules you are using.
Analog Input
Input FIFO size ......................................2,047 samples
Sample rate
1
Maximum........................................ 3.2 MS/s (multi-channel,
aggregate)
Minimum ........................................ 0 S/s
Timing accuracy
2
...................................50 ppm of sample rate
Timing resolution
2
................................. 50 ns
Number of channels supported .............. Determined by the C Series
I/O modules
Analog Output
Numbers of channels supported
In hardware-timed task ...................16
In non-hardware-timed task............ Determined by the C Series
I/O modules
Maximum update rate ............................1.6 MS/s (multi-channel,
aggregate)
Timing accuracy..................................... 50 ppm of sample rate
Timing resolution...................................50 ns
Output FIFO size.................................... 8,191 samples shared among
channels used
1
Performance dependent on type of installed C Series I/O modules and number of channels in the task.
2
Does not include group delay. Refer to C Series I/O module documentation for more information.