ADuM1410/ADuM1411/ADuM1412
Table 14. Truth Table (Positive Logic)
VIx
CTRLX
VDISABLE VDDI
VDDO
VOx
Input1 Input2
State3
State4
State5
Output1 Description
H
L
X
X
X
L or NC Powered
L or NC Powered
Powered
Powered
Powered
H
L
H
Normal operation, data is high.
Normal operation, data is low.
Inputs disabled. Outputs are in the default state as determined
by CTRLX.
Inputs disabled. Outputs are in the default state as determined
by CTRLX.
H or NC
H
H
X
X
X
X
L
X
Powered
Powered
L
H or NC
Unpowered
H
Input unpowered. Outputs are in the default state as determined
by CTRLX.
Outputs return to input state within 1 μs of VDDI power restoration.
See the pin function descriptions (Table 11, Table 12, and Table 13)
for more details.
X
X
L
X
X
Unpowered
Powered
Powered
L
Input unpowered. Outputs are in the default state as determined
by CTRLX.
Outputs return to input state within 1 μs of VDDI power restoration.
See the pin function descriptions (Table 11, Table 12, and Table 13)
for more details.
Output unpowered. Output pins are in high impedance state.
Outputs return to input state within 1 μs of VDDO power restoration.
See the pin function descriptions (Table 11, Table 12, and Table 13)
for more details.
X
Unpowered
Z
1 VIx and VOx refer to the input and output signals of a given channel (A, B, C, or D).
2 CTRLX refers to the default output control signal on the input side of a given channel (A, B, C, or D).
3 Available only on ADuM1410.
4 VDDI refers to the power supply on the input side of a given channel (A, B, C, or D).
5 VDDO refers to the power supply on the output side of a given channel (A, B, C, or D).
Rev. H | Page 16 of 24
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