Data Sheet ADuM3440/ADuM3441/ADuM3442
Rev. D | Page 15 of 24
V
DD1
1
GND
1
*
2
V
IA
3
V
IB
4
V
DD2
16
GND
2
*
15
V
OA
14
V
OB
13
V
OC
5
V
IC
12
V
OD
6
V
ID
11
V
E1
7
V
E2
10
GND
1
*
8
GND
2
*
9
ADuM3442
TOP VIEW
(Not to Scale)
*PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED AND CONNECTING BOTH TO
GND
1
IS RECOMMENDED. PIN 9 AND PIN 15 ARE INTERNALLY CONNECTED AND
CONNECTING BOTH TO GND
2
IS RECOMMENDED.
06837-007
Figure 7. ADuM3442 Pin Configuration
Table 14. ADuM3442 Pin Function Descriptions
Pin No. Mnemonic Function
1 V
Supply Voltage for Isolator Side 1, 3.0 V to 5.5 V.
2, 8 GND
Ground 1. Ground reference for Isolator Side 1.
3 V
Logic Input A.
4 V
Logic Input B.
5 V
Logic Output C.
7 V
E1
Output Enable 1. Active high logic input. V
OC
and V
OD
outputs are enabled when V
E1
is high or disconnected. V
OC
and
V
OD
outputs are disabled when V
E1
is low. In noisy environments, connecting V
E1
to an external logic high or low is
recommended.
9, 15 GND
Ground 2. Ground reference for Isolator Side 2.
10 V
E2
Output Enable 2. Active high logic input. V
OA
and V
OB
outputs are enabled when V
E2
is high or disconnected. V
OA
and
V
OB
outputs are disabled when V
E2
is low. In noisy environments, connecting V
E2
to an external logic high or low is
recommended.
11 V
Logic Input D.
12 V
Logic Input C.
13 V
Logic Output B.
16 V
Supply Voltage for Isolator Side 2, 3.0 V to 5.5 V.
