ADUM7641ARQZ Datasheet, PDF (13/20 Pages) Analog Devices – 1 kV RMS Six-Channel Digital Isolators

Data Sheet
ADuM7640/ADuM7641/ADuM7642/ADuM7643
V_DD1A 1
GND₁* 2
V_IA 3
V_IB 4
V_IC 5
V_OD 6
V_DD1B 7
V_OE 8
V_IF 9
GND₁* 10
ADuM7642
TOP VIEW
(Not to Scale)
20 V_DD2A
19 GND₂*
18 V_OA
17 V_OB
16 V_OC
15 V_ID
14 V_DD2B
13 V_IE
12 V_OF
11 GND₂*
*PIN 2 AND PIN 10 ARE INTERNALLY CONNECTED.
CONNECTING BOTH PINS TO PCB SIDE 1 GROUND
IS RECOMMENDED. PIN 11 AND PIN 19 ARE
INTERNALLY CONNECTED. CONNECTING BOTH
PINS TO PCB SIDE 2 GROUND IS RECOMMENDED.
Figure 8. ADuM7642 Pin Configuration
Table 22. ADuM7642 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 0.01 µF to
0.1 µF between VDD1A (Pin 1) and GND1 (Pin 2).
2
GND1
Ground Reference for Isolator Side 1. Pin 2 and Pin 10 are internally connected, and connecting both pins to the PCB
ground plane is recommended.
3
VIA
Logic Input A.
4
VIB
Logic Input B.
5
VIC
Logic Input 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 0.01 µF to
0.1 µF between VDD1B (Pin 7) and GND1 (Pin 10).
8
VOE
Logic Output E.
9
VIF
Logic Input F.
10
GND1
Ground Reference for Isolator Side 1. Pin 2 and Pin 10 are internally connected, and connecting both pins to the PCB
ground plane is recommended.
11
GND2
Ground Reference for Isolator Side 2. Pin 11 and Pin 19 are internally connected, and connecting both pins to the PCB
ground plane is recommended.
12
VOF
Logic Output F.
13
VIE
Logic Input E.
14
VDD2B
Supply Voltage B for Isolator Side 2 (3.0 V to 5.5 V). Pin 14 must be connected externally to Pin 20. Connect a 0.01 µF
to 0.1 µF between VDD2B (Pin 14) and GND2 (Pin 11).
15
VID
Logic Input D.
16
VOC
Logic Output C.
17
VOB
Logic Output B.
18
VOA
Logic Output A.
19
GND2
Ground Reference for Isolator Side 2. Pin 11 and Pin 19 are internally connected, and connecting both pins to the PCB
ground plane is recommended.
20
VDD2A
Supply Voltage A for Isolator Side 2 (3.0 V to 5.5 V). Pin 20 must be connected externally to Pin 14. Connect a 0.01 µF
to 0.1 µF between VDD2A (Pin 20) and GND2 (Pin 19).
Reference the AN-1109 Application Note for specific layout guidelines.
Rev. 0 | Page 13 of 20