ADUM7440_11 Datasheet, PDF (9/20 Pages) Analog Devices – 1 kV RMS Quad-Channel Digital Isolators

ADuM7440/ADuM7441/ADuM7442
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
V_DD1A 1
GND₁* 2
V_IA 3
V_IB 4
V_IC 5
V_ID 6
V_DD1B 7
GND₁* 8
ADuM7440
TOP VIEW
(Not to Scale)
16 V_DD2A
15 GND₂*
14 V_OA
13 V_OB
12 V_OC
11 V_OD
10 V_DD2B
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 5. ADuM7440 Pin Configuration
Table 20. ADuM7440 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
VIC
Logic Input C.
6
VID
Logic Input 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
VOD
Logic Output D.
12
VOC
Logic Output 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 9 of 20