ADUM1400(2004) データシートの表示（PDF） - Analog Devices
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ADUM1400 Datasheet PDF : 24 Pages
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ADuM1400/ADuM1401/ADuM1402
PIN CONFIGURATIONS AND PIN FUNCTION DESCRIPTIONS
VDD1 1
16 VDD2
*GND1 2 ADuM1400 15 GND2*
VIA 3 TOP VIEW 14 VOA
VIB 4 (Not to Scale) 13 VOB
VIC 5
12 VOC
VID 6
11 VOD
NC 7
10 VE2
*GND1 8
9 GND2*
NC = NO CONNECT
Figure 5. ADuM1400 Pin Configuration
VDD1 1
16 VDD2
*GND1 2 ADuM1401 15 GND2*
VIA 3 TOP VIEW 14 VOA
VIB 4 (Not to Scale) 13 VOB
VIC 5
12 VOC
VOD 6
11 VID
VE1 7
10 VE2
*GND1 8
9 GND2*
Figure 6. ADuM1401 Pin Configuration
VDD1 1
16 VDD2
*GND1 2 ADuM1402 15 GND2*
VIA 3 TOP VIEW 14 VOA
VIB 4 (Not to Scale) 13 VOB
VOC 5
12 VIC
VOD 6
11 VID
VE1 7
10 VE2
*GND1 8
9 GND2*
Figure 7. ADuM1402 Pin Configuration
* Pins 2 and 8 are internally connected. Connecting both to GND1 is recommended. Pins 9 and 15 are internally connected. Connecting both to GND2 is recommended.
Output enable Pin 10 on the ADuM1400 may be left disconnected if outputs are to be always enabled. Output enable Pins 7 and 10 on the ADuM1401/ADuM1402
may be left disconnected if outputs are to be always enabled. In noisy environments, connecting Pin 7 (for ADuM1401 and ADuM1402) and Pin 10 (for all models) to
an external logic high or low is recommended.
Table 11. ADuM1400 Pin Function Descriptions
Pin
No. Mnemonic Function
1 VDD1
Supply Voltage for Isolator Side 1, 2.7 V to 5.5 V.
2 GND1
Ground 1. Ground reference for isolator Side 1.
3 VIA
Logic Input A.
4 VIB
Logic Input B.
5 VIC
Logic Input C.
6 VID
Logic Input D.
7 NC
No Connect.
8 GND1
Ground 1. Ground reference for isolator Side 1.
9 GND2
Ground 2. Ground reference for isolator Side 2.
10 VE2
Output Enable 2. Active high logic input. VOA, VOB, VOC, and VOD outputs are enabled when VE2 is high or disconnected. VOA, VOB, VOC, and
VOD outputs are disabled when VE2 is low. In noisy environments, connecting VE2 to an external logic high or low is recommended.
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.
16 VDD2
Supply Voltage for Isolator Side 2, 2.7 V to 5.5 V.
Rev. B | Page 15 of 24
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