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ADUM7440 Datasheet(PDF) 9 Page - Analog Devices |
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ADUM7440 Datasheet(HTML) 9 Page - Analog Devices |
9 / 20 page ADuM7440/ADuM7441/ADuM7442 Rev. 0 | Page 9 of 20 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS VDD1A 1 GND1* 2 VIA 3 VIB 4 VDD2A 16 GND2* 15 VOA 14 VOB 13 VIC 5 VOC 12 VID 6 VOD 11 VDD1B 7 VDD2B 10 GND1* 8 GND2* 9 ADuM7440 TOP VIEW (Not to Scale) *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 19. 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). |
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