ADuM5240/ADuM5241/ADuM5242 Data Sheet
Rev. B | Page 8 of 16
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
06014-009
V
DD
1
V
IA
2
V
IB
3
GND
4
V
ISO
8
V
OA
7
V
OB
6
GND
ISO
5
ADuM5240
TOP VIEW
(Not to Scale)
Figure 5. ADuM5240 Pin Configuration
Table 9. ADuM5240 Pin Function Descriptions
No.
Mnemonic Description
1 V
DD
Supply Voltage for Isolator Primary Side,
4.5 V to 5.5 V (DC-to-DC Enabled) and
2.7 V to 4.0 V (DC-to-DC Disabled).
2 V
Logic Input A.
3 V
Logic Input B.
4 GND Ground. Ground reference for isolator
primary side.
5 GND
ISO
Isolated Ground. Ground reference for
isolator secondary side.
6 V
Logic Output B.
7 V
Logic Output A.
8 V
ISO
Isolated Supply Voltage for Isolator
Secondary Side, 4.5 V to 5.5 V Output
(DC-to-DC Enabled), and 2.7 V to 5.5 V
Input (DC-to-DC Disabled).
06014-010
V
DD
1
V
OA
2
V
IB
3
GND
4
V
ISO
8
V
IA
7
V
OB
6
GND
ISO
5
ADuM5241
TOP
VIEW
(Not to Scale)
Figure 6. ADuM5241 Pin Configuration
Table 10. ADuM5241 Pin Function Descriptions
Pin
No.
Mnemonic Description
1 V
DD
Supply Voltage for Isolator Primary Side,
4.5 V to 5.5 V (DC-to-DC Enabled) and
2.7 V to 4.0 V (DC-to-DC Disabled).
2 V
Logic Output A.
3 V
Logic Input B.
4 GND Ground. Ground reference for isolator
primary side.
5 GND
ISO
Isolated Ground. Ground reference
for isolator secondary side.
6 V
Logic Output B.
7 V
Logic Input A.
8 V
ISO
Isolated Supply Voltage for Isolator
Secondary Side, 4.5 V to 5.5 V Output
(DC-to-DC Enabled), and 2.7 V to 5.5 V
Input (DC-to-DC Disabled).
06014-011
V
DD
1
V
OA
2
V
OB
3
GND
4
V
ISO
8
V
IA
7
V
IB
6
GND
ISO
5
ADuM5242
TOP VIEW
(Not to Scale)
Figure 7. ADuM5242 Pin Configuration
Table 11. ADuM5242 Pin Function Descriptions
No.
Mnemonic Description
1 V
DD
Supply Voltage for Isolator Primary Side,
4.5 V to 5.5 V (DC-to-DC Enabled) and
2.7 V to 4.0 V (DC-to-DC Disabled).
2 V
Logic Output A.
3 V
Logic Output B.
4 GND Ground. Ground reference for isolator
primary side.
5 GND
ISO
Isolated Ground. Ground reference for
isolator secondary side.
6 V
Logic Input B.
7 V
Logic Input A.
8 V
ISO
Isolated Supply Voltage for Isolator
Secondary Side, 4.5 V to 5.5 V Output
(DC-to-DC Enabled), and 2.7 V to 5.5 V
Input (DC-to-DC Disabled).
