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Data Sheet ADuM1400/ADuM1401/ADuM1402
Rev. L | Page 23 of 31
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
IC
5
V
OC
12
V
OD
6
V
ID
11
V
E1
7
V
E2
10
*GND
1
8
GND
2
*
9
ADuM1401
TOP VIEW
(Not to Scale)
03786-006
*
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.
Figure 6. ADuM1401 Pin Configuration
Table 17. ADuM1401 Pin Function Descriptions
Pin No.
Mnemonic
Description
1 V
DD1
Supply Voltage for Isolator Side 1.
2 GND
1
Ground 1. Ground reference for Isolator Side 1.
3 V
IA
Logic Input A.
4 V
IB
Logic Input B.
5 V
IC
Logic Input C.
6 V
OD
Logic Output D.
7 V
E1
Output Enable 1. Active high logic input. V
OD
output is enabled when V
E1
is high or disconnected. V
OD
is disabled
when V
E1
is low. In noisy environments, connecting V
E1
to an external logic high or low is recommended.
8 GND
1
Ground 1. Ground reference for Isolator Side 1.
9 GND
2
Ground 2. Ground reference for Isolator Side 2.
10 V
E2
Output Enable 2. Active high logic input. V
OA
, V
OB
, and V
OC
outputs are enabled when V
E2
is high or disconnected. V
OA
,
V
OB
, and V
OC
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
ID
Logic Input D.
12 V
OC
Logic Output C.
13 V
OB
Logic Output B.
14 V
OA
Logic Output A.
15 GND
2
Ground 2. Ground reference for Isolator Side 2.
16 V
DD2
Supply Voltage for Isolator Side 2.
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