Data Sheet
ADuM1400/ADuM1401/ADuM1402
V
1
2
3
4
5
6
7
8
16
V
DD2
DD1
*GND
15 GND *
1
IA
IB
IC
2
V
V
V
14
13
12
11
10
9
V
V
V
V
V
OA
OB
OC
ID
ADuM1401
TOP VIEW
(Not to Scale)
V
OD
V
E1
E2
*GND
GND *
1
2
*PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED, AND CONNECTING
BOTH TO GND IS RECOMMENDED. PIN 9 AND PIN 15 ARE INTERNALLY
1
CONNECTED, AND CONNECTING BOTH TO GND IS RECOMMENDED.
2
Figure 6. ADuM1401 Pin Configuration
Table 17. ADuM1401 Pin Function Descriptions
Pin No. Mnemonic Description
1
2
3
4
5
6
7
VDD1
GND1
VIA
VIB
VIC
Supply Voltage for Isolator Side 1.
Ground 1. Ground reference for Isolator Side 1.
Logic Input A.
Logic Input B.
Logic Input C.
VOD
VE1
Logic Output D.
Output Enable 1. Active high logic input. VOD output is enabled when VE1 is high or disconnected. VOD is disabled
when VE1 is low. In noisy environments, connecting VE1 to an external logic high or low is recommended.
8
9
10
GND1
GND2
VE2
Ground 1. Ground reference for Isolator Side 1.
Ground 2. Ground reference for Isolator Side 2.
Output Enable 2. Active high logic input. VOA, VOB, and VOC outputs are enabled when VE2 is high or disconnected. VOA,
VOB, and VOC outputs are disabled when VE2 is low. In noisy environments, connecting VE2 to an external logic high or
low is recommended.
11
12
13
14
15
16
VID
VOC
VOB
VOA
GND2
VDD2
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.
Rev. H | Page 23 of 32
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