Datasheet

ADG508A/ADG509A
Rev. D | Page 11 of 16
TEST CIRCUITS
Note: All digital input signal rise and fall times measured from 10% to 90% of 3 V. t
R
= t
F
= 20 ns.
R
ON
=V1/I
DS
V
S
SD
V1
I
DS
00051-015
Figure 14. R
ON
D
A
EN
GND
0.8V
I
S
(OFF)
V1 V2
V
DD
V
SS
V
DD
V
SS
00051-016
Figure 15. I
S
(Off)
I
D
(OFF)
D
A
EN
GND
0.8V
V1
V2
V
SS
V
DD
V
SS
V
DD
0
0051-017
Figure 16. I
D
(Off)
D
A
EN
GND
2.4V
I
D
(ON)V2
V
1
V
DD
V
SS
V
DD
V
SS
00051-018
Figure 17. I
D
(On)
DA
EN
GND
0.8V
DB
V1
V2
V
SS
V
DD
V
SS
V
DD
A
A
ADG509A
00051-019
Figure 18. I
DIFF
= I
DB
(Off)
90%
0V
3V
90%
50%
OUTPUT
ADDRESS
DRIVE (V
IN
)
t
TRANSITION
t
TRANSITION
OUTPUT
ADG508A
1
A2
A1
A0
50Ω
1MΩ
GND
S1
S2–S7
S8
D
35pF
V
IN
2.4V EN
V
DD
V
SS
V
DD
V
SS
V1
V2
1
SIMILAR CONNECTION FOR ADG509A.
00051-020
Figure 19. Switching Time of Multiplexer, t
TRANSITION