
ADuM6400/ADuM6401/ADuM6402/ADuM6403/ADuM6404
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Data Sheet
V DD1 1
GND 1 2
16
15
V ISO
GND ISO
V IA 3
ADuM6400
14
V OA
V IB 4
TOP VIEW
13 V OB
V IC 5
(Not to Scale) 12 V OC
V ID 6
V DDL 7
GND 1 8
11
10
9
V OD
V SEL
GND ISO
Figure 8. ADuM6400 Pin Configuration
Table 21. ADuM6400 Pin Function Descriptions
Pin No.
1
2, 8
3
4
5
6
7
9, 15
10
11
12
13
14
16
Mnemonic
V DD1
GND 1
V IA
V IB
V IC
V ID
V DDL
GND ISO
V SEL
V OD
V OC
V OB
V OA
V ISO
Description
Primary Supply Voltage, 3.0 V to 5.5 V. Pin 1 and Pin 7 must be connected to the same external voltage source.
Ground Reference for the Primary Side of the Isolator. Pin 2 and Pin 8 are internally connected to each other, and
it is recommended that both pins be connected to a common ground.
Logic Input A.
Logic Input B.
Logic Input C.
Logic Input D.
Data Channel Supply Voltage, 3.0 V to 5.5 V. Pin 1 and Pin 7 must be connected to the same external voltage source.
Ground Reference for the Secondary Side of the Isolator. Pin 9 and Pin 15 are internally connected to each other,
and it is recommended that both pins be connected to a common ground.
Output Voltage Selection. When V SEL = V ISO , the V ISO setpoint is 5.0 V. When V SEL = GND ISO , the V ISO setpoint is 3.3 V.
Logic Output D.
Logic Output C.
Logic Output B.
Logic Output A.
Secondary Supply Voltage Output for External Loads: 3.3 V (V SEL = GND ISO ) or 5.0 V (V SEL = V ISO ).
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