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ADuM7440/ADuM7441/ADuM7442
ABSOLUTE MAXIMUM RATINGS
T A = 25°C, unless otherwise noted.
Data Sheet
Stresses above those listed under Absolute Maximum Ratings
Table 17.
Parameter
Storage Temperature (T ST ) Range
Ambient Operating Temperature (T A )
Supply Voltages (V DD1 , V DD2 )
Input Voltages (V IA , V IB , V IC , V ID ) 1, 2
Output Voltages (V OA , V OB , V OC , V OD ) 1, 2
Average Output Current per Pin 3
Side 1 (I O1 )
Side 2 (I O2 )
Common-Mode Transients 3
Rating
?65°C to +150°C
?40°C to +105°C
?0.5 V to +7.0 V
?0.5 V to V DDI + 0.5 V
?0.5 V to V DDO + 0.5 V
?10 mA to +10 mA
?10 mA to +10 mA
?100 kV/μs to +100 kV/μs
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
1
2
3
V DDI and V DDO refer to the supply voltages on the input and output sides of a
given channel, respectively. See the PC Board Layout section.
See Figure 4 for maximum rated current values for various temperatures.
Refers to common-mode transients across the insulation barrier. Common-
mode transients exceeding the absolute maximum ratings may cause
latch-up or permanent damage.
Table 18. Maximum Continuous Workin g Voltage 1
Parameter
AC Voltage, Bipolar Waveform
Max
420
Unit
V peak
Constraint
50-year minimum lifetime
AC Voltage, Unipolar Waveform
Basic Insulation
420
V peak
50-year minimum lifetime
DC Voltage
Basic Insulation
420
V peak
50-year minimum lifetime
1
Refers to continuous voltage magnitude imposed across the isolation barrier. See the Insulation Lifetime section for more details.
Table 19. Truth Table (Positive Logic)
V Ix Input 1
H
L
X
V DDI State 2
Powered
Powered
Unpowered
V DDO State 3
Powered
Powered
Powered
V Ox Output 1
H
L
H
Description
Normal operation; data is high.
Normal operation; data is low.
Input unpowered. Outputs are in the default high state. Outputs return to
input state within 1 μs of V DDI power restoration. See the pin function
descriptions (Table 20 through Table 22) for more details.
X
Powered
Unpowered
Z
Output unpowered. Output pins are in high impedance state. Outputs
return to input state within 1 μs of V DDO power restoration. See the pin function
descriptions (Table 20 through Table 22) for more details.
1
2
3
V Ix and V Ox refer to the input and output signals of a given channel (A, B, C, or D).
V DDI refers to the power supply on the input side of a given channel (A, B, C, or D).
V DDO refers to the power supply on the output side of a given channel (A, B, C, or D).
Rev. C | Page 8 of 20
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