Datasheet

ADuM1400/ADuM1401/ADuM1402 Data Sheet
Rev. L | Page 22 of 31
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
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
ID
6
V
OD
11
NC
7
V
E2
10
*GND
1
8
GND
2
*
9
NC = NO CONNECT
ADuM1400
TOP VIEW
(Not to Scale)
03786-005
*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 5. ADuM1400 Pin Configuration
Table 16. ADuM1400 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
ID
Logic Input D.
7 NC No Connect.
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
, V
OC
, and V
OD
outputs are enabled when V
E2
is high or disconnected.
V
OA
, V
OB
, V
OC
, and V
OD
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
OD
Logic Output 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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