
© National Instruments Corp. 19 NI 9229/9239
Data rate range (fs) using external master timebase
Minimum....................................390.625 S/s
Maximum.................................. .51.2 kS/s
Data rates1 (fs)................................... , n = 1, 2, …, 31
Input voltage ranges (AI+ to AI–)2
Overvoltage protection..................... ±100 V
Input coupling................................... DC
Input impedance (AI+ to AI–).......... 1MΩ
1 The data rate must remain within the appropriate data rate range. Refer to the
Understanding NI 9229/9239 Data Rates section for more information.
2 Refer to the Safety Guidelines section for more information about safe operating
voltages.
Module Nominal (V) Typica l (V ) Minimum (V)
NI 9229 ±60 ±62.64 ±61.5
NI 9239 ±10 ±10.52 ±10.3
fM256÷
n
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