Datasheet

ADG708/ADG709 Data Sheet
Rev. D | Page 16 of 20
OUTPUT
3V
50%
ENABLE
DRIVE (V
IN
)
50%
0V
V
O
t
ON
(EN)
0V
0.9V
O
0.9V
O
t
OFF
(EN)
A2
D
*SIMILAR CONNECTION FOR ADG709.
A1
A0
EN
GND
ADG708*
S1
S2 TO S8
V
IN
35pF
V
DD
V
SS
V
DD
V
SS
V
S
300
Ω
R
L
C
L
V
OUT
50Ω
00041-026
Figure 26. Enable Delay, t
ON
(EN), t
OFF
(EN)
LOGIC INPUT
(V
IN
)
3V
0V
V
OUT
Q
INJ
= C
L
× ΔV
OUT
A2
V
OUT
V
DD
D
A1
A0
EN
GND
ADG708*
C
L
1nF
V
DD
S
V
IN
R
S
V
SS
V
SS
V
S
*SIMILAR CONNECTION FOR ADG709.
ΔV
OUT
00041-027
Figure 27. Charge Injection
V
S
V
OUT
50Ω
NETWORK
ANALYZER
R
L
50
Ω
GND
S
D
V
S
OFF ISOLATION = 20 log
V
OUT
0.1µ
F
V
DD
A2
A1
A0
EN
2.4V
0.1µF
V
SS
V
DD
V
SS
50
Ω
00041-028
Figure 28. Off Isolation
*SIMILAR CONNECTION FOR ADG709.
V
OUT
V
S
A2
D
A1
A0
EN
GND
ADG708*
S1
S2
S8
2.4V
NETWORK
ANALYZER
NETWORK
ANALYZER
R
L
50Ω
V
OUT
0.1µF 0.1µF
V
DD
V
SS
V
DD
V
SS
50Ω
V
S
50Ω
00041-029
CHANNEL-TO-CHANNEL CROSSTALK = 20 log
Figure 29. Channel-to-Channel Crosstalk