MAX4709 Maxim, MAX4709 Datasheet - Page 14

• Manufacturer Part Number: MAX4709
• Description: The MAX4708/MAX4709 8-to-1 and dual 4-to-1 fault-protected multiplexers are pin compatible with the industry-standard DG508/DG509
• Manufacturer: Maxim

Fault-Protected, Single 8-to-1/
Dual 4-to-1 Multiplexers
Figure 8. NO_, COM_ Capacitance
14
CHANNEL
SELECT
______________________________________________________________________________________
MAX4708
MAX4709
NO1
NO2
NO3
NO4
NO5
NO6
NO7
NO8
A2
A1
A0
NO1A
NO2A
NO3A
NO4A
NO1B
NO2B
NO3B
NO4B
GND
MAX4708
EN
V+
A0
V+
V+
A0
V-
COM
NO1
NO8
DECODERS/DRIVERS
A1
DECODERS/DRIVERS
A1
V-
V-
A2
CAPACITANCE
ANALYZER
f = 1MHz
1MHz
GND
EN
Test Circuits/Timing Diagrams (continued)
GND
EN
COM
COMA
COMB
Figure 9. Transient Behavior of Fault Condition
V
NO
Functional Diagrams/Truth Tables
_
+25V
A2
LOGIC 0 V
X
0
0
0
0
1
1
1
1
LOGIC 0 V
A1
A1
X
0
0
1
1
X
0
0
1
1
0
0
1
1
-15V
-25V
AL
≤ +0.8V, LOGIC 1 V
AL
MAX4708
A0
A0
X
0
1
0
1
0
1
0
1
X
0
1
0
1
≤ +0.8V, LOGIC 1 V
MAX4709
EN
EN
0
1
1
1
1
0
1
1
1
1
1
1
1
1
ON SWITCH
ON SWITCH
+15V
AH
NONE
NONE
≥ +2.4V
AH
1
2
3
4
5
6
7
8
1
2
3
4
≥ +2.4V
V
COM_