Datasheet

DG408/DG409
Improved, 8-Channel/Dual 4-Channel,
CMOS Analog Multiplexers
_______________________________________________________________________________________ 7
Test Circuits/Timing Diagrams
50%
t
TRANS (OFF)
tR < 20ns
t
F
< 20ns
V
OUT
+3V
0V
V
S1
0V
V
S8
or V
S4B
LOGIC
INPUT
SWITCH
OUTPUT
+15V
V
OUT
-15V
GND
V+
A1
V-
A2
A0
EN
S1
S2-S7
S8
D
±10V
+10V
50Ω
DG408
300Ω
35pF
+15V
V
OUT
-15V
GND
V+
A0
V-
A1
EN
S1B
S1A-S4A
S4B
DB
±10V
50Ω
DG409
300Ω
35pF
90%
90%
t
TRANS (ON)
+10V
50%
t
OFF(EN)
tR < 20ns
t
F
< 20ns
V
OUT
+3V
0V
0V
LOGIC
INPUT
SWITCH
OUTPUT
+15V
V
OUT
-15V
GND
V+
A1
V-
A0
A2
EN
S1
S2-S8
D
-5V
50Ω
DG408
1k
35pF
90%
10%
t
ON(EN)
+15V
V
OUT
-15V
GND
V+
A1
V-
A0
EN
S1B
S1A-S4A
S2B-S4B,
DA
DB
-5V
50Ω
DG409
1k
35pF
Figure 2. Transition Time
Figure 3. Enable Switching Time