Data Sheet
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
A0
EN
V
SS
S1
S2
S3
S4
D
1
2
3
4
5
6
7
8
16
A1
15
A2
14
GND
TOP VIEW
13
V
DD
(Not to Scale)
12
S5
11
S6
00027-002
ADG408/ADG409
A0
EN
V
SS
S1A
S2A
S3A
S4A
DA
1
2
3
4
5
6
7
8
16
15
A1
GND
ADG408
14
V
DD
TOP VIEW
(Not to Scale)
13
S1B
12
S2B
11
10
9
ADG409
S3B
DB
00027-003
10
S7
9
S4B
S8
Figure 2.
Pin Configuration
Figure 3.
Pin Configuration
Table 4.
Pin Function Descriptions
Pin
No.
1
2
Mnemonic
A0
EN
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.
Table 5.
Pin Function Descriptions
Pin
No.
1
2
Mnemonic
A0
EN
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.
3
V
SS
3
V
SS
4
5
6
7
8
9
10
11
12
13
14
15
16
S1
S2
S3
S4
D
S8
S7
S6
S5
V
DD
GND
A2
A1
4
5
6
7
8
9
10
11
12
13
14
15
16
S1A
S2A
S3A
S4A
DA
DB
S4B
S3B
S2B
S1B
V
DD
GND
A1
Table 6.
Truth Table
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
Table 7.
Truth Table
A1
X
0
0
1
1
A0
X
0
1
0
1
EN
0
1
1
1
1
On Switch
Pair
None
1
2
3
4
Rev. D | Page 7 of 15
AD [ ANALOG DEVICES ]
