MAX4508 Maxim, MAX4508 Datasheet - Page 13

• Manufacturer Part Number: MAX4508
• Description: The MAX4508/MAX4509 are 8-to-1 and dual 4-to-1 fault-protected multiplexers that are pin compatible with the industry-standard DG508/DG509
• Manufacturer: Maxim

Figure 4. MAX4508 Break-Before-Make Interval
Figure 5. Charge Injection
Figure 6. Off-Isolation
V
R
IN
V
S
S
= 50Ω
Dual 4-to-1 Multiplexers with Output Clamps
V
A
Fault-Protected, High-Voltage Single 8-to-1/
+2.4V
R
S
50Ω
CHANNEL
V
______________________________________________________________________________________
EN
SELECT
A0
A1
A2
NO1
NO8
A0
EN
A1
A2
GND
MAX4508
GND
V
10nF
EN
EN
MAX4508
+15V
V+
A0
+15V
NO
EN
A1
A2
V+
GND
OFF-ISOLATION = 20log
10nF
NO1–NO8
-15V
-15V
COM
MAX4508
V-
V-
COM
+15V
V+
-15V
V-
1k
COM
R
75Ω
L
+10V
V
OUT
V
V
OUT
Test Circuits/Timing Diagrams (continued)
IN
C
1000nF
L
35pF
V
OUT
V
OUT
V
LOGIC
INPUT
V
OUT
EN
Figure 7. Crosstalk
R
R
1kΩ
+3V
G
0V
= 50Ω
SWITCH
OUTPUT
V
ΔV
ERROR V
V
LOGIC
INPUT
V
CTE
OUT
A
OUT
= ΔV
OFF
V
IN
IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
CTE
+5V
OUT
+3V
0V
0V
WHEN THE CHANNEL TURNS OFF.
C
L
A0
A1
A2
NO1
NO2
NO8
GND
ON
50%
MAX4508
10nF
EN
+15V
V+
80%
-15V
10nF
COM
CROSSTALK = 20log
V-
t
OPEN
OFF
t
t
R
F
ΔV
< 20ns
< 20ns
R
75Ω
OUT
L
V
OUT
V
V
OUT
IN
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