16 | ni.com | NI 9401 Operating Instructions and Specifications
Maximum output signal switching frequency by number of output
channels with an output load of 1 mA, 50 pF, per channel
8 output channels........................ 5 MHz
4 output channels........................ 10 MHz
2 output channels........................ 20 MHz
I/O propagation delay ....................... 100 ns max
I/O pulse width distortion ................. 10 ns typ
Input current (0 V ≤ V
in
≤ 4.5 V)...... ±250 μA typ
Input capacitance .............................. 30 pF typ
Input rise/fall time............................. 500 ns max
Overvoltage protection,
channel-to-COM ............................... ±30 V max on one channel at
a time; however, continued
use at this level will degrade
the life of the module.
MTBF ............................................... 1,244,763 hours at 25 °C;
Bellcore Issue 2, Method 1,
Case 3, Limited Part Stress
Method
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