ADuM1400/ADuM1401/ADuM1402
Data Sheet
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
V
1
2
3
4
5
6
7
8
16
V
DD2
DD1
*GND
15 GND *
1
IA
IB
IC
ID
2
V
V
V
V
14
13
12
11
10
9
V
V
V
V
V
OA
OB
OC
OD
E2
ADuM1400
TOP VIEW
(Not to Scale)
NC
*GND
GND *
1
2
NC = NO CONNECT
*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 5. ADuM1400 Pin Configuration
Table 16. ADuM1400 Pin Function Descriptions
Pin No. Mnemonic Description
1
2
3
VDD1
GND1
VIA
Supply Voltage for Isolator Side 1.
Ground 1. Ground reference for Isolator Side 1.
Logic Input A.
4
VIB
Logic Input B.
5
VIC
Logic Input C.
6
VID
Logic Input D.
7
NC
No Connect.
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, VOC, and VOD outputs are enabled when VE2 is high or disconnected.
VOA, VOB, VOC, and VOD 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
VOD
VOC
VOB
VOA
GND2
VDD2
Logic Output 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 22 of 32
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