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Data Sheet
ADuM4400/ADuM4401/ADuM4402
V DD1 1
GND 1 2
16
15
V DD2
GND 2
V IA 3
V IB 4
V IC 5
V OD 6
V E1 7
GND 1 8
ADuM4401
TOP VIEW
(Not to Scale)
14
13
12
11
10
9
V OA
V OB
V OC
V ID
V E2
GND 2
NOTES
1. PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED,
AND CONNECTING BOTH TO GND 1 IS RECOMMENDED.
2. PIN 9 AND PIN 15 ARE INTERNALLY CONNECTED,
AND CONNECTING BOTH TO GND 2 IS RECOMMENDED.
Figure 6. ADuM4401 Pin Configuration
Table 22. ADuM4401 Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Mnemonic
V DD1
GND 1
V IA
V IB
V IC
V OD
V E1
GND 1
GND 2
V E2
V ID
V OC
V OB
V OA
GND 2
V DD2
Description
Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
Ground 1. Ground reference for isolator Side 1.
Logic Input A.
Logic Input B.
Logic Input C.
Logic Output D.
Output Enable. Active high logic input. V Ox Side 1 outputs are enabled when V E1 is high or disconnected. V OX Side 1
outputs are disabled when V E1 is low. In noisy environments, connecting V E1 to an external logic high or low is
recommended.
Ground 1. Ground reference for isolator Side 1.
Ground 2. Ground reference for isolator Side 2.
Output Enable 2. Active high logic input. V Ox outputs on Side 2 are enabled when V E2 is high or disconnected.
V Ox Side 2 outputs are disabled when V E2 is low. In noisy environments, connecting V E2 to an external logic high or low
is recommended.
Logic Input D.
Logic Output C.
Logic Output B.
Logic Output A.
Ground 2. Ground reference for isolator Side 2.
Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
Rev. C | Page 11 of 20
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