Datasheet

ADG408/ADG409
Rev. C | Page 11 of 16
TEST CIRCUITS
R
ON
=V1/I
DS
V
S
SD
V1
I
DS
00027-018
Figure 18. On Resistance
S1
D
S2
S8
A
EN
GND
0.8V
I
S
(OFF)
V
S
V
D
V
DD
V
SS
V
DD
V
SS
00027-019
Figure 19. I
S
(OFF)
I
D
(OFF)
S1
D
S2
S8
A
EN
GND
0.8V
V
S
V
D
V
SS
V
DD
V
SS
V
DD
00027-020
Figure 20. I
D
(OFF)
S1
D
S8
A
EN
GND
2.4V
I
D
(ON)
V
D
V
S
V
DD
V
SS
V
DD
V
SS
00027-021
Figure 21. I
D
(ON)
3V
0V
OUTPUT
t
r
< 20ns
t
f
< 20ns
ADDRESS
DRIVE (V
IN
)
t
TRANSITION
t
TRANSITION
50% 50%
90%
90%
OUTPUT
ADG408
1
A0
A1
A2
50Ω
300Ω
GND
S1
S2–S7
S8
D
35pF
V
IN
2.4V EN
V
DD
V
SS
V
DD
V
SS
V
S1
V
S8
1
SIMILAR CONNECTION FOR ADG409.
00027-022
Figure 22. Switching Time of Multiplexer, t
TRANSlTlON
OUTPUT
ADG408
1
A0
A1
A2
50Ω
300Ω
GND
S1
S2–S7
S8
D
35pF
V
IN
2.4V EN
V
DD
V
SS
V
DD
V
SS
V
S
1
SIMILAR CONNECTION FOR ADG409.
3V
0V
OUTPUT
80% 80%
ADDRESS
DRIVE (V
IN
)
00027-023
t
OPEN
Figure 23. Break-Before-Make Delay, t
OPEN