ADG508A/ADG509A
3
2
1
20
A0
EN
V
SS
S1A
S2A
S3A
S4A
DA
1
2
3
4
5
6
7
8
16
15
A1
GND
V
DD
S1B
S2B
S3B
00051-006
V
SS
S1A
NC
S2A
S3A
4
5
6
7
8
9
PIN 1
IDENTIFIER
GND
19
18
V
DD
17
S1B
16
NC
15
S2B
14
S3B
00051-008
NC
11
EN
A0
ADG509A
TOP VIEW
(Not to Scale)
14
13
12
11
10
9
TOP VIEW
(Not to Scale)
ADG509A
S4B
DB
A1
12
10
13
S4A
Figure 6. ADG509A DIP, SOIC
Figure 7. ADG509A PLCC
Table 6. ADG509A Pin Function Description
Pin Number
DIP/SOIC PLCC/LCC
1
2
2
3
3
4
5
6
7
8
9
10
11
12
13
14
15
16
N/A
N/A
N/A
N/A
4
5
7
8
9
10
12
13
14
15
17
18
19
20
1
6
11
16
Mnemonic
A0
EN
V
SS
S1A
S2A
S3A
S4A
DA
DB
S4B
S3B
S2B
S1B
V
DD
GND
A1
NC
NC
NC
NC
Description
Logic Control Input.
Active High Digital Input. When low, the device is disabled and all switches are off.
When high, Ax logic inputs determine on switches.
Most Negative Power Supply Potential in Dual Supplies. In single-supply applications,
it can be connected to ground.
Source Terminal 1A. Can be an input or an output.
Source Terminal 2A. Can be an input or an output.
Source Terminal 3A. Can be an input or an output.
Source Terminal 4A. Can be an input or an output.
Drain Terminal A. Can be an input or an output.
Drain Terminal B. Can be an input or an output.
Source Terminal 4B. Can be an input or an output.
Source Terminal 3B. Can be an input or an output.
Source Terminal 2B. Can be an input or an output.
Source Terminal 1B. Can be an input or an output.
Most Positive Power Supply Potential.
Ground (0 V) Reference.
Logic Control Input.
No Connect.
No Connect.
No Connect.
No Connect.
Table 7. ADG509A Truth Table
A1
X
0
0
1
1
1
A0
X
0
1
0
1
X
EN
0
1
1
1
1
On Switch Pair
None
1
2
3
4
X = don’t care.
Rev. D | Page 9 of 16
S4B
DA
NC
DB
NC = NO CONNECT
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