Datasheet

ADuM1400/ADuM1401/ADuM1402
Rev. D | Page 15 of 24
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
Figure 5. ADuM1400 Pin Configuration
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
OD
6
V
ID
11
V
E1
7
V
E2
10
*
GND
1
8
GND
2
*
9
NC = NO CONNECT
ADuM1401
TOP VIEW
(Not to Scale)
03786-006
Figure 6. ADuM1401 Pin Configuration
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
OC
5
V
IC
12
V
OD
6
V
ID
11
V
E1
7
V
E2
10
*
GND
1
8
GND
2
*
9
NC = NO CONNECT
ADuM1402
TOP VIEW
(Not to Scale)
03786-007
Figure 7. ADuM1402 Pin Configuration
* Pins 2 and 8 are internally connected, and connecting both to GND
1
is recommended. Pins 9 and 15 are internally connected, and connecting both to GND
2
is
recommended. In noisy environments, connecting the output enables (Pin 7 for ADuM1401/ADuM1402 and Pin 10 for all models) to an external logic high or low is
recommended.
Table 11. ADuM1400 Pin Function Descriptions
Pin
No. Mnemonic Function
1 V
DD1
Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
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, 2.7 V to 5.5 V.