© National Instruments Corp.
19
NI 9229/9239
Data rate range (
f
s
)
u
sing external master timebase
Minim
u
m.................................... 390.625 S/s
Maxim
u
m ................................... 51.2 kS/s
Data rates
1
(
f
s
) ...................................
,
n
= 1, 2, …, 31
Inp
u
t voltage ranges (AI+ to AI–)
2
Overvoltage protection ..................... ±100 V
Inp
u
t co
u
pling................................... DC
Inp
u
t impedance (AI+ to AI–) .......... 1 M
Ω
1
The data rate m
u
st remain within the appropriate data rate range. Refer to the
Understanding NI 9229/9239 Data Rates
section for more information.
2
section for more information abo
u
t 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
---------------------