MAX4508 Maxim, MAX4508 Datasheet - Page 14

• 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

Fault-Protected, High-Voltage Single 8-to-1/
Dual 4-to-1 Multiplexers with Output Clamps
Figure 8. NO_, COM_ Capacitance
14
CHANNEL
SELECT
______________________________________________________________________________________
MAX4509
MAX4508
NO1A
NO2A
NO3A
NO4A
NO1B
NO2B
NO3B
NO4B
NO1
NO2
NO3
NO4
NO5
NO6
NO7
NO8
A2
A1
A0
GND
MAX4508
V+
A0
V+
A0
EN
+15V
V+
-15V
V-
DECODERS/DRIVERS
DECODERS/DRIVERS
COM
A1
NO1
NO8
A1
V-
V-
A2
CAPACITANCE
ANALYZER
f = 1MHz
1MHz
GND
GND
EN
EN
Test Circuits/Timing Diagrams (continued)
COMA
COMB
COM
Figure 9. Transient Behavior of Fault Condition
V
Functional Diagrams/Truth Tables
NO
_
+25V
LOGIC "0" V
LOGIC "0" V
A2
X
0
0
0
0
1
1
1
1
A1
X
0
0
1
1
A1
X
0
0
1
1
0
0
1
1
AL
AL
A0
-15V
-25V
X
0
1
0
1
≤ +0.8V, LOGIC "1" V
≤ +0.8V, LOGIC "1" V
MAX4508
MAX4509
A0
X
0
1
0
1
0
1
0
1
EN
0
1
1
1
1
EN
0
1
1
1
1
1
1
1
1
ON SWITCH
NONE
ON SWITCH
1
2
3
4
AH
NONE
AH
+15V
1
2
3
4
5
6
7
8
≥ +2.4V
≥ +2.4V
V
COM_