ADuM1280/ADuM1281/ADuM1285/ADuM1286

Data Sheet

Rev. 0 | Page 10 of 16

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

1

8

2

7

3

6

4

5

TOP VIEW

(Not to Scale)

ADuM1280/

ADuM1285

Figure 4. ADuM1280/ADuM1285 Pin Configuration

Table 20. ADuM1280/ADuM1285 Pin Function Descriptions

Pin No.

Mnemonic

Description

1

V

DD1

2.7 V to 5.5 V Supply Voltage for Isolator Side 1.

2

V

IA

Logic Input A.

3

V

IB

Logic Input B.

4

GND

1

Ground 1. Ground reference for Isolator Side 1.

5

GND

2

Ground 2. Ground reference for Isolator Side 2.

6

V

OB

Logic Output B.

7

V

OA

Logic Output A.

8

V

DD2

2.7 V to 5.5 V Supply Voltage for Isolator Side 2.

1

8

2

7

3

6

4

5

TOP VIEW

(Not to Scale)

ADuM1281/

ADuM1286

Figure 5. ADuM1281/ADuM1286 Pin Configuration

Table 21. ADuM1281/ADuM1286 Pin Function Descriptions

Pin No.

Mnemonic

Description

1

V

DD1

2.7 V to 5.5 V Supply Voltage for Isolator Side 1.

2

V

OA

Logic Output A.

3

V

IB

Logic Input B.

4

GND

1

Ground 1. Ground reference for Isolator Side 1.

5

GND

2

Ground 2. Ground reference for Isolator Side 2.

6

V

OB

Logic Output B.

7

V

IA

Logic Input A.

8

V

DD2

2.7 V to 5.5 V Supply Voltage for Isolator Side 2.

For specific layout guidelines, refer to the AN-1109 Application Note, Recommendations for Control of Radiated Emissions with iCoupler

Devices.