National Instruments NI 9229 User Manual
Page 19

© National Instruments Corp.
19
NI 9229/9239
Data rate range (f
s
) using external master timebase
Minimum.................................... 390.625 S/s
Maximum ................................... 51.2 kS/s
Data rates
1
(f
s
) ...................................
, n = 1, 2, …, 31
Input voltage ranges (AI+ to AI–)
2
Overvoltage protection ..................... ±100 V
Input coupling................................... DC
Input impedance (AI+ to AI–) .......... 1 M
Ω
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
section for more information about safe operating
voltages.
Module
Nominal (V)
Typical (V)
Minimum (V)
NI 9229
±60
±62.64
±61.5
NI 9239
±10
±10.52
±10.3
f
M
256
÷
n
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