adum7440 Analog Devices, Inc., adum7440 Datasheet - Page 11

• Manufacturer Part Number: adum7440
• Description: 1 Kv Rms Quad-channel Digital Isolators
• Manufacturer: Analog Devices, Inc.

Table 21. ADuM7442 Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Mnemonic
V
GND
V
V
V
V
V
GND
GND
V
V
V
V
V
GND
V
DD1A
IA
IB
OC
OD
DD1B
DD2B
ID
IC
OB
OA
DD2A
1
1
2
2
Description
Supply Voltage A for Isolator Side 1 (3.0 V to 5.5 V). Pin 1 must be connected externally to Pin 7. Connect a ceramic
bypass capacitor of value 0.01 μF to 0.1 μF between V
Ground 1. Ground reference for Isolator Side 1. Pin 2 and Pin 8 are internally connected, and connecting both to GND
recommended.
Logic Input A.
Logic Input B.
Logic Output C.
Logic Output D.
Supply Voltage B for Isolator Side 1 (3.0 V to 5.5 V). Pin 7 must be connected externally to Pin 1. Connect a ceramic
bypass capacitor of value 0.01 μF to 0.1 μF between V
Ground 1. Ground reference for Isolator Side 1. Pin 2 and Pin 8 are internally connected, and connecting both to GND
recommended.
Ground 2. Ground reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected, and connecting both to GND
recommended.
Supply Voltage B for Isolator Side 2 (3.0 V to 5.5 V). Pin 10 must be connected externally to Pin 16. Connect a ceramic
bypass capacitor of value 0.01 μF to 0.1 μF between V
Logic Input D.
Logic Input C.
Logic Output B.
Logic Output A.
Ground 2. Ground reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected, and connecting both to GND
recommended.
Supply Voltage A for Isolator Side 2 (3.0 V to 5.5 V). Pin 16 must be connected externally to Pin 10. Connect a
ceramic bypass capacitor of value 0.01 μF to 0.1 μF between V
*PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED. CONNECTING BOTH
TO GND
CONNECTED. CONNECTING BOTH TO GND
1
IS RECOMMENDED. PIN 9 AND PIN 15 ARE INTERNALLY
Figure 7. ADuM7442Pin Configuration
GND
GND
V
V
DD1A
DD2A
V
V
V
V
OC
OD
IA
1
IB
1
*
*
Rev. 0 | Page 11 of 20
1
2
3
4
5
6
7
8
ADuM7442
(Not to Scale)
TOP VIEW
2
IS RECOMMENDED.
16
15
14
13
12
11
10
9
DD1A
DD1B
DD2B
V
GND
V
V
V
V
V
GND
DD2B
OA
OB
IC
ID
DD2B
(Pin 7) and GND
(Pin 10) and GND
(Pin 1) and GND
2
2
*
*
DD2A
ADuM7440/ADuM7441/ADuM7442
(Pin 16) and GND
1
1
(Pin 8).
2
(Pin 2).
(Pin 9).
2
(Pin 15).
1
1
is
is
2
2
is
is