I
F
PULSE GEN.
I
F
+5 V
1
2
3
4
8
7
6
5
Z
t
= 50 Ω
= 5 ns
O
r
R
5 V
L
V
O
V
O
1.5 V
V
OL
t
PHL
C
L
= 15 pF
0.1µF
I
MONITOR
F
I
F
0
R
M
5 V
V
O
1.5 V
V
OL
t
PLH
Figure 9. Switching Test Circuit.
I
F
R
(SEE NOTE 7)
B
CC
+5 V
1
2
3
4
8
7
6
5
110 Ω
A
t , t = 16 ns
r
f
R
L
10 V
V
CM
0 V
90% 90%
10%
10%
t
V
V
FF
O
t
r
f
0.1 µF
V
5 V
SWITCH AT A: I = 0 mA
O
F
V
V
O
OL
SWITCH AT B: I = 1.6 mA
V
CM
F
+
–
PULSE GEN.
Figure 10. Test Circuit for Transient Immunity and Typical Waveforms.
1-119