ADUM7440_11 AD [Analog Devices], ADUM7440_11 Datasheet - Page 9

• Manufacturer Part Number: ADUM7440_11
• Description: 1 kV RMS Quad-Channel Digital Isolators
• Manufacturer: AD [Analog Devices]

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 20. ADuM7440 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
IC
ID
DD1B
DD2B
OD
OC
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 Input C.
Logic Input 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 Output D.
Logic Output 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 5. ADuM7440 Pin Configuration
GND
GND
V
V
DD1A
DD1B
V
V
V
V
1
IA
IB
IC
ID
1
*
*
1
2
3
4
5
6
7
8
Rev. B | Page 9 of 20
ADuM7440
(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
DD2A
OA
OB
OC
OD
DD2B
(Pin 7) and GND
(Pin 10) and GND
(Pin 1) and GND
2
2
*
*
ADuM7440/ADuM7441/ADuM7442
DD2A
(Pin 16) and GND
1
1
(Pin 8).
2
(Pin 2).
(Pin 9).
2
(Pin 15).
1
1
is
is
2
2
is
is