ADG1633/ADG1634 Data Sheet
Rev. B | Page 10 of 19
1
2
3
4
5
6
8
20
19
18
17
16
15
13
S1A
D1
S1B
7
S2B
GND
V
SS
IN1
S4A
D4
S4B
14
S3B
9
S2A
12
S3A
10
IN2
11
IN3
D2 D3
NC
V
DD
IN4
ADG1634
TOP VIEW
(Not to Scale)
NC = NO CONNECT
08319-006
Figure 6. ADG1634 TSSOP Pin Configuration
D1
S1B
V
SS
GND
S2B
V
DD
S4B
D4
S3B
D3
D2
S2A
IN2
S3A
IN3
EN
IN1
S1A
IN4
S4A
NOTES
1. EXPOSED PAD IS TIED TO THE SUBSTRATE, V
SS
.
08319-007
14
1
3
12
1
3
4
15
1
1
2
5
7
6
8
9
10
19
20
18
17
16
ADG1634
T
OP
VIEW
(Not to Scale)
Figure 7. ADG1634 LFCSP Pin Configuration
Table 10. ADG1634 Pin Function Descriptions
Pin No.
Mnemonic Description
TSSOP LFCSP
1 19 IN1 Logic Control Input 1.
2 20 S1A Source Terminal 1A. Can be an input or an output.
3 1 D1 Drain Terminal 1. Can be an input or an output.
4 2 S1B Source Terminal 1B. Can be an input or an output.
SS
Most Negative Power Supply Potential. In single-supply applications, this pin can be connected to ground.
6 4 GND Ground (0 V) Reference.
7 5 S2B Source Terminal 2B. Can be an input or an output.
8 6 D2 Drain Terminal 2. Can be an input or an output.
9 7 S2A Source Terminal 2A. Can be an input or an output.
10 8 IN2 Logic Control Input 2.
11 9 IN3 Logic Control Input 3.
12 10 S3A Source Terminal 3A. Can be an input or an output.
13 11 D3 Drain Terminal 3. Can be an input or an output.
14 12 S3B Source Terminal 3B. Can be an input or an output.
15 N/A NC No Connect.
DD
Most Positive Power Supply Potential.
17 14 S4B Source Terminal 4B. Can be an input or an output.
18 15 D4 Drain Terminal 4. Can be an input or an output.
19 16 S4A Source Terminal 4A. Can be an input or an output.
20 17 IN4 Logic Control Input 4.
N/A 18
EN Active Low Digital Input. When this pin is high, the device is disabled and all switches are off. When
this pin is low, INx logic inputs determine the on switches.
N/A 21 EP Exposed Pad. The exposed pad is tied to the substrate, V
SS
.
Table 11. ADG1634 TSSOP Truth Table
INx SxA SxB
0 Off On
1 On Off
Table 12. ADG1634 LFCSP Truth Table
EN
INx SxA SxB
1 X
1
Off Off
0 0 Off On
0 1 On Off
1
X = don’t care.