Data Sheet

ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447

ABSOLUTE MAXIMUM RATINGS

Table 16.

Parameter

Rating

−0.5 V to +3.6 V

Average Output Current per Pin1

−10 mA to +10 mA

−10 mA to +10 mA

Common-Mode Transients2

−100 kV/µs to +100 kV/µs

−65°C to +150°C

Ambient Operating Temperature

−40°C to +125°C

1

See Figure 3 for maximum safety power values for various temperatures.

2

Refers to common-mode transients across the insulation barrier. Common-mode

transients exceeding the absolute maximum ratings can cause latch-up or

permanent damage.

Stresses above those listed under Absolute Maximum Ratings

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.

Table 17. Maximum Continuous Working Voltage1

Parameter

Value

Constraint

AC Voltage

60 Hz Bipolar Waveform

50-year minimum lifetime

60 Hz Unipolar Waveform

Basic Insulation

50-year minimum lifetime

DC Voltage

Basic Insulation

50-year minimum lifetime

1

Refers to continuous voltage magnitude imposed across the isolation

barrier. See the Insulation Lifetime section for more details.

ESD CAUTION

Table 18. Truth Table (Positive Logic) for all Models

Description

H

Powered

Powered

L

H

Normal operation; data is high and refresh is enabled.

L

Powered

Powered

L

L

Normal operation; data is low and refresh is enabled.

H

Powered

Powered

H

H

Output is high, and refresh is disabled.

L

Powered

Powered

H

L5

Output is low, and refresh is disabled.

L

Unpowered

Powered

L

Default

Input unpowered. Outputs are in the default state, high for

ADuM1440, ADuM1441, and ADuM1442, and low

ADuM1445, ADuM1446, and ADuM1447. Outputs return to

pin function descriptions (Table 19 through Table 21) for

more details.

L

Unpowered

Powered

H

Hold

Input unpowered. Outputs are the last state before input

power is shut down.

X

Powered

Unpowered

X

Z

Output unpowered. Output pins are in high impedance

restoration. See the pin function descriptions (Table 19

through Table 21) for more details.

1

H = high, L = low, X = don’t care, and Z = high impedance.

2

3

4

5

Low input must follow a falling edge; otherwise, it can be in the default low state.

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