ADUM3481 datasheet(6/20 Pages) AD

Part #	ADUM3481

Description	Small, 3.75 kV RMS Quad Digital Isolators

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ADuM3480/ADuM3481/ADuM3482

Data Sheet

Rev. 0 | Page 6 of 20

Table 6.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

DC SPECIFICATIONS

Input Voltage Threshold

Logic High

VIH

0.7 VDDLx

V

Logic Low

VIL

0.3 VDDLx

V

Output Voltages

Logic High

VOH

VDDLx − 0.1

3.0

V

IOx = −20 µA, VIx = VIxH

VDDLx − 0.4

2.8

V

IOx = −4 mA, VIx = VIxH

Logic Low

VOL

0.0

0.1

V

IOx = 20 µA, VIx = VIxL

0.2

0.4

V

IOx = 4 mA, VIx = VIxL

Input Current per Channel

II

−10

+0.01

+10

µA

0 V ≤ VIx≤ VDDLx, 0 V ≤ VCTRLx ≤ VDDLx

Supply Current per Channel

Quiescent Supply Current

Regulator Input Side

IDDI (Q)

0.36

0.5

mA

I/O Input

IDDIL (Q)

0.019

0.050

mA

Regulator Output Side

IDDO (Q)

1.21

1.7

mA

I/O Output

IDDOL (Q)

0.021

0.050

mA

Dynamic Supply Current

Regulator Input Side

IDDI (D)

0.070

mA/Mbps

I/O Input

IDDIL (D)

0.53

µA/Mbps

Regulator Output Side

IDDO (D)

0.010

mA/Mbps

I/O Output

IDDOL (D)

0.013

mA/Mbps

AC SPECIFICATIONS

Output Rise/Fall Time

tR/tF

3

ns

10% to 90%

Common-Mode Transient Immunity1

|CM|

25

35

kV/µs

VIx = VDDLx, VCM = 1000 V,

transient magnitude = 800 V

Refresh Period

tr

1.66

µs

1

|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining VOL < 0.8 × VDDLx or VOH > 0.7 × VDDIx. The common-mode voltage slew

rates apply to both rising and falling common-mode voltage edges.

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