ADG508A/ADG509A
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
NC
EN
NC
EN
A0
A1
A2
A0
A1
20
3
2
1
20 19
18
3
2
1
A0
EN
V
SS
S1
S2
S3
S4
D
1
2
3
4
5
6
7
8
16
15
A1
A2
GND
V
DD
S5
S6
00051-003
V
SS 4
S1
5
NC
6
S2
7
S3
8
9
10 11 12 13
GND
V
DD
NC
S5
S6
00051-004
V
SS
S1
NC
S2
S3
4
5
6
7
8
9
PIN 1
IDENTIFIER
A2
19
18
17
GND
V
DD
NC
S5
S6
00051-005
ADG508A
TOP VIEW
(Not to Scale)
14
13
12
11
10
9
ADG508A
TOP VIEW
(Not to Scale)
17
16
15
14
TOP VIEW
(Not to Scale)
ADG508A
16
15
14
S7
S8
S4
D
S8
NC
S7
S4
D
S8
Figure 3. ADG508A DIP, SOIC
Figure 4. ADG508A LCC
Figure 5. ADG508A PLCC
Table 4. ADG508A 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
S1
S2
S3
S4
D
S8
S7
S6
S5
V
DD
GND
A2
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 1. Can be an input or an output.
Source Terminal 2. Can be an input or an output.
Source Terminal 3. Can be an input or an output.
Source Terminal 4. Can be an input or an output.
Drain Terminal. Can be an input or an output.
Source Terminal 8. Can be an input or an output.
Source Terminal 7. Can be an input or an output.
Source Terminal 6. Can be an input or an output.
Source Terminal 5. Can be an input or an output.
Most Positive Power Supply Potential.
Ground (0 V) Reference.
Logic Control Input.
Logic Control Input.
No Connect.
No Connect.
No Connect.
No Connect.
Table 5. ADG508A Truth Table
A2
X
0
0
0
0
1
1
1
1
1
A1
X
0
0
1
1
0
0
1
1
A0
X
0
1
0
1
0
1
0
1
X
EN
0
1
1
1
1
1
1
1
1
On Switch
None
1
2
3
4
5
6
7
8
X = don’t care.
Rev. D | Page 8 of 16
NC
S7
NC = NO CONNECT
10
11
12
13
NC = NO CONNECT
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