ADG408/ADG409
V
DD
3V
ENABLE
DRIVE (V
IN
)
0V
50%
50%
t
r
< 20ns
t
f
< 20ns
A0
S1
V
IN
t
TRANSITION
t
TRANSITION
90%
OUTPUT
2.4V
EN
GND
90%
*SIMILAR CONNECTION FOR ADG409
300
35pF
50
A1
S2 THRU S7
A2
S8
V
S8
OUTPUT
D
V
S1
V
SS
V
DD
V
SS
ADG408*
Test Circuit 5. Switching Time of Multiplexer, t
TRANSlTlON
V
DD
3V
ADDRESS
DRIVE (V
IN
)
0V
V
IN
50
A0
V
SS
V
DD
V
SS
S1
V
S
A1
S2 THRU S7
A2
S8
80%
OUTPUT
80%
2.4V
EN
ADG408*
D
GND
OUTPUT
300
35pF
t
OPEN
*SIMILAR CONNECTION FOR ADG409
Test Circuit 6. Break-Before-Make Delay, t
OPEN
V
DD
3V
ENABLE
DRIVE (V
IN
)
0V
50%
50%
A0
V
SS
V
DD
V
SS
S1
V
S
A1
A2
t
ON
(EN)
0.9V
O
OUTPUT
V
IN
50
t
OFF
(EN)
0.9V
O
EN
GND
S2 THRU S8
ADG408*
D
OUTPUT
300
35pF
*SIMILAR CONNECTION FOR ADG409
Test Circuit 7. Enable Delay, t
ON
(EN), t
OFF
(EN)
REV. A
–9–
AD [ ANALOG DEVICES ]
