adum1401 Analog Devices, Inc., adum1401 Datasheet - Page 15

• Manufacturer Part Number: adum1401
• Description: Quad-channel Digital Isolators
• Manufacturer: Analog Devices, Inc.

PIN CONFIGURATIONS AND PIN FUNCTION DESCRIPTIONS
* Pins 2 and 8 are internally connected. Connecting both to GND
Table 11. ADuM1400 Pin Function Descriptions
Pin
No. Mnemonic Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Output enable Pin 10 on the ADuM1400 may be left disconnected if outputs are to be always enabled. Output enable Pins 7 and 10 on the ADuM1401/ADuM1402
may be left disconnected if outputs are to be always enabled. In noisy environments, connecting Pin 7 (for ADuM1401 and ADuM1402) and Pin 10 (for all models) to
an external logic high or low is recommended.
Figure 5. ADuM1400 Pin Configuration
*GND
*GND
V
GND
V
V
V
V
NC
GND
GND
V
V
V
V
V
GND
V
V
DD1
IA
IB
IC
ID
E2
OD
OC
OB
OA
DD2
DD1
V
V
V
V
NC
IA
IB
IC
ID
1
1
1
1
2
2
NC = NO CONNECT
1
2
3
4
5
6
7
8
(Not to Scale)
ADuM1400
TOP VIEW
Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
Ground 1. Ground reference for isolator Side 1.
Logic Input A.
Logic Input B.
Logic Input C.
Logic Input D.
No Connect.
Ground 1. Ground reference for isolator Side 1.
Ground 2. Ground reference for isolator Side 2.
Output Enable 2. Active high logic input. V
V
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, 2.7 V to 5.5 V.
OD
outputs are disabled when V
16
15
14
13
12
11
10
9
V
GND
V
V
V
V
V
GND
DD2
OA
OB
OC
OD
E2
2
2
*
*
E2
is low. In noisy environments, connecting V
1
Figure 6. ADuM1401 Pin Configuration
is recommended. Pins 9 and 15 are internally connected. Connecting both to GND
*GND
*GND
V
OA
V
DD1
V
V
V
V
OD
, V
E1
IA
IB
IC
1
1
OB
1
2
3
4
5
6
7
8
Rev. B | Page 15 of 24
, V
(Not to Scale)
ADuM1401
OC
TOP VIEW
, and V
OD
16
15
14
13
12
10
outputs are enabled when V
11
9
V
GND
V
V
V
V
V
GND
DD2
OA
OB
OC
ID
E2
2
2
*
*
ADuM1400/ADuM1401/ADuM1402
E2
to an external logic high or low is recommended.
E2
is high or disconnected. V
Figure 7. ADuM1402 Pin Configuration
*GND
*GND
V
V
V
DD1
V
V
V
OC
OD
E1
IA
IB
1
1
1
2
3
4
5
6
7
8
(Not to Scale)
ADuM1402
TOP VIEW
2
is recommended.
16
15
14
13
12
10
11
9
OA
V
GND
V
V
V
V
V
GND
DD2
OA
OB
IC
ID
E2
, V
OB
2
2
*
*
, V
OC
, and