ADuM1400/ADuM1401/ADuM1402
Data Sheet
V
1
2
3
4
5
6
7
8
16
V
DD2
DD1
*GND
15 GND *
1
IA
IB
2
V
V
14
13
12
11
10
9
V
V
V
V
V
OA
OB
IC
ADuM1402
TOP VIEW
(Not to Scale)
V
V
OC
OD
ID
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 7. ADuM1402 Pin Configuration
Table 18. ADuM1402 Pin Function Descriptions
Pin No. Mnemonic Description
1
2
3
4
5
6
7
VDD1
GND1
VIA
Supply Voltage for Isolator Side 1.
Ground 1. Ground reference for Isolator Side 1.
Logic Input A.
Logic Input B.
Logic Output C.
VIB
VOC
VOD
VE1
Logic Output D.
Output Enable 1. Active high logic input. VOC and VOD outputs are enabled when VE1 is high or disconnected. VOC and
VOD outputs are 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 and VOB outputs are enabled when VE2 is high or disconnected. VOA and
VOB 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
VIC
VOB
VOA
GND2
VDD2
Logic Input D.
Logic Input C.
Logic Output B.
Logic Output A.
Ground 2. Ground reference for Isolator Side 2.
Supply Voltage for Isolator Side 2.
Rev. H | Page 24 of 32
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