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ADUM5403ARWZ
(Rev.:Rev0)

Quad-Channel Isolators with Integrated DC-to-DC Converter

Analog Devices 

ADuM5401/ADuM5402/ADuM5403/ADuM5404

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

VDD1 1

16 VISO

GND1 2

15 GNDISO

VIA 3 ADuM5401 14 VOA

VIB 4 TOP VIEW 13 VOB

VIC 5 (Not to Scale) 12 VOC

VOD 6

11 VID

NC 7

10 VSEL

GND1 8

9 GNDISO

Figure 7. ADuM5401 Pin Configuration

Table 11. ADuM5401 Pin Function Descriptions

Pin No. Mnemonic Description

1

VDD1

Primary Supply Voltage, 3.0 V to 5.5 V.

2, 8 GND1

Ground 1. Ground reference for isolator primary. Pin 2 and Pin 8 are internally connected, and it is recommended that both

pins be connected to a common ground.

3

VIA

Logic Input A.

4

VIB

Logic Input B.

5

VIC

Logic Input C.

6

VOD

Logic Output D.

7

NC

Make no connection to this pin.

9, 15 GNDISO

Ground Reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected, and it is recommended that both pins be

connected to a common ground.

10

VSEL

Output Voltage Selection. When VSEL = VISO, the VISO setpoint is 5.0 V. When VSEL = GNDISO, the VISO setpoint is 3.3 V.

VDD1 and VISO voltages must be in the same operating range to guarantee proper operation of the data channels.

11

VID

Logic Input D.

12

VOC

Logic Output C.

13

VOB

Logic Output B.

14

VOA

Logic Output A.

16

VISO

Secondary Supply Voltage Output for External Loads, 3.3 V (VSEL Low) or 5.0 V (VSEL High). VDD1 and VISO voltages must be

in the same operating range to guarantee proper operation of the data channels.

Rev. 0 | Page 10 of 24

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