ADUM7442CRQZ-RL7 查看數據表（PDF） - Analog Devices

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ADUM7442CRQZ-RL7

1 kV RMS Quad-Channel Digital Isolators

Analog Devices 

ADuM7440/ADuM7441/ADuM7442

VDD1A 1

GND1* 2

VIA 3

VIB 4

VOC 5

VOD 6

VDD1B 7

GND1* 8

ADuM7442

TOP VIEW

(Not to Scale)

16 VDD2A

15 GND2*

14 VOA

13 VOB

12 VIC

11 VID

10 VDD2B

9 GND2*

*PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED. CONNECTING BOTH

TO GND1 IS RECOMMENDED. PIN 9 AND PIN 15 ARE INTERNALLY

CONNECTED. CONNECTING BOTH TO GND2 IS RECOMMENDED.

Figure 7. ADuM7442Pin Configuration

Table 22. ADuM7442 Pin Function Descriptions

Pin No. Mnemonic Description

1

VDD1A

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 VDD1A (Pin 1) and GND1 (Pin 2).

2

GND1

Ground 1. Ground reference for Isolator Side 1. Pin 2 and Pin 8 are internally connected, and connecting both to GND1 is

recommended.

3

VIA

Logic Input A.

4

VIB

Logic Input B.

5

VOC

Logic Output C.

6

VOD

Logic Output D.

7

VDD1B

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 VDD1B (Pin 7) and GND1 (Pin 8).

8

GND1

Ground 1. Ground reference for Isolator Side 1. Pin 2 and Pin 8 are internally connected, and connecting both to GND1 is

recommended.

9

GND2

Ground 2. Ground reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected, and connecting both to GND2 is

recommended.

10

VDD2B

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 VDD2B (Pin 10) and GND2 (Pin 9).

11

VID

Logic Input D.

12

VIC

Logic Input C.

13

VOB

Logic Output B.

14

VOA

Logic Output A.

15

GND2

Ground 2. Ground reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected, and connecting both to GND2 is

recommended.

16

VDD2A

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 VDD2A (Pin 16) and GND2 (Pin 15).

Rev. B | Page 11 of 20

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