Improved, 8-Channel/Dual 4-Channel,
CMOS Analog Multiplexers
DG408/DG409
________Pin Configurations/Functional Diagrams/Truth Tables (continued)
TOP VIEW
S1A
S2A
A0
1
EN
2
V-
3
S1A
4
S2A
5
S3A
6
S4A
7
DA
8
16
A1
15
GND
14
V+
S4A
S1B
S2B
DB
S3B
S4B
CMOS DECODE LOGIC
S3A
DA
V+
V-
GND
DG409
13
S1B
12
S2B
11
S3B
10
S4B
9
DB
DIP/SO
A1
A0
EN
DG409 4-CHANNEL DIFFERENTIAL MUX /DEMUX
A2
X
0
0
0
0
1
1
1
1
A1
X
0
0
1
1
0
0
1
1
A0
X
0
1
0
1
0
1
0
1
EN
0
1
1
1
1
1
1
1
1
ON
SWITCH
None
1
2
3
4
5
6
7
8
A1
X
0
0
1
1
A0
X
0
1
0
1
EN
0
1
1
1
1
DG409
ON
SWITCH
None
1
2
3
4
DG408
LOGIC “0” V
AL
≤
0.8V, LOGIC “1” V
AH
≥
2.4V
LOGIC “0” V
AL
≤
0.8V, LOGIC “1” V
AH
≥
2.4V
10
______________________________________________________________________________________