©
National Instruments Corp.
11
NI 9403 Operating Instructions and Specifications
Digital logic levels
Inp
u
t
Voltage ................................. –0.25
to
5.25 V
High, V
IH
.............................. 2.2 V min
Low, V
IL
............................... 0.8 V max
Hysteresis, V
H
...................... 0.2 V min
O
u
tp
u
t
High, V
OH
............................. 5.2 V max
So
u
rcing 100
μ
A ........... 4.75 V min
So
u
rcing 2 mA............... 4.4 V min
Low, V
OL
Sinking 100
μ
A ............. 0.1 V max
Sinking 2 mA................. 0.26 V max
Inp
u
t c
u
rrent (0 V
≤
V
in
≤
4.5 V)...... ±250
μ
A max
Mod
u
le o
u
tp
u
t c
u
rrent
1
..................... 64 mA max
Inp
u
t capacitance .............................. 30 pF
1
Mod
u
le o
u
tp
u
t c
u
rrent is the maxim
u
m g
u
aranteed c
u
rrent that the mod
u
le can drive
from all the I/O lines witho
u
t going into an overc
u
rrent state.
