Datasheet

MAX4708/MAX4709
Fault-Protected, Single 8-to-1/
Dual 4-to-1 Multiplexers
14 ______________________________________________________________________________________
Test Circuits/Timing Diagrams (continued)
GND
V+
A2
V-
A1
A0
NO8
MAX4708
CHANNEL
SELECT
NO1
COM
EN
1MHz
CAPACITANCE
ANALYZER
f = 1MHz
Figure 8. NO_, COM_ Capacitance
+25V
-25V
-15V
+15V
V
COM_
V
NO
_
Figure 9. Transient Behavior of Fault Condition
Functional Diagrams/Truth Tables
DECODERS/DRIVERS
COM
NO1
NO2
NO3
NO4
NO5
NO6
NO7
NO8
A0 A1 A2 EN
V+ V- GND
MAX4708
A0A1A2 EN ON SWITCH
X
0
0
0
0
1
1
1
1
X
0
0
1
1
0
0
1
1
X
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
NONE
1
2
3
4
5
6
7
8
LOGIC 0 V
AL
≤ +0.8V, LOGIC 1 V
AH
≥ +2.4V
MAX4708
DECODERS/DRIVERS
COMA
NO1A
NO2A
NO3A
NO4A
A0 A1 EN
V+ V- GND
MAX4709
COMB
NO1B
NO2B
NO3B
NO4B
A0A1 EN ON SWITCH
X
0
0
1
1
X
0
1
0
1
0
1
1
1
1
NONE
1
2
3
4
LOGIC 0 V
AL
≤ +0.8V, LOGIC 1 V
AH
≥ +2.4V
MAX4709