ADUM1280WCRZ datasheet(7/20 Pages) AD

No. de pieza	ADUM1280WCRZ

Descripción Electrónicos	3 kV RMS Dual Channel Digital Isolators

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Data Sheet

ADuM1280/ADuM1281/ADuM1285/ADuM1286

Rev. A | Page 7 of 20

ELECTRICAL CHARACTERISTICS—3 V OPERATION (WA, WB, AND WC GRADES)

All typical specifications are at TA = 25°C, VDD1 = VDD2 = 3.0 V. Minimum/maximum specifications apply over the entire recommended

operation range: 3.0 V ≤ VDD1 ≤ 3.6 V, 3.0 V ≤ VDD2 ≤ 3.6 V, −40°C ≤ TA ≤ 125°C, unless otherwise noted. Switching specifications are

tested with CL = 15 pF and CMOS signal levels, unless otherwise noted.

Table 13.

WA Grade

WB Grade

WC Grade

Parameter

Symbol

Min

Typ

Min

Typ

Max

Min

Typ

Max

Unit

Test Conditions

SWITCHING SPECIFICATIONS

Pulse Width

PW

1000

40

10

ns

Within PWD limit

Data Rate

1

25

100

Mbps

Within PWD limit

Propagation Delay

tPHL, tPLH

50

35

20

25

33

ns

50% input to 50% output

Pulse Width Distortion

PWD

10

3

2.5

ns

|tPLH − tPHL|

Change vs. Temperature

7

3

1.5

ps/°C

Propagation Delay Skew

tPSK

38

16

12

ns

Between any two units at

same operating conditions

Channel Matching

Codirectional

tPSKCD

5

3

2.5

ns

Opposing-Direction

tPSKOD

10

6

5

ns

Jitter

2

1

ns

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Table 14.

Parameter

Symbol

1 Mbps–WA, WB, WC

Grades

25 Mbps–WB, WC

Grades

100 Mbps–WC Grade

Unit

Test Conditions

Min

Typ

Min

Typ

Max

Min

Typ

Max

SUPPLY CURRENT

No load

ADuM1280/ADuM1285

IDD1

0.75

1.4

5.1

9.0

17

23

mA

IDD2

2.0

3.5

2.7

4.6

4.8

9

mA

ADuM1281/ADuM1286

IDD1

1.6

2.1

3.8

5.0

11

15

mA

IDD2

1.7

2.3

3.9

6.2

11

15

mA

Table 15. For All Models

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions

DC SPECIFICATIONS

Logic High Input Threshold

VIH

0.7 VDDx

V

Logic Low Input Threshold

VIL

0.3 VDDx

V

Logic High Output Voltages

VOH

VDDx − 0.1

3.0

V

IOx = −20 µA, VIx = VIxH

VDDx −0.4

2.8

V

IOx = −4 mA, VIx = VIxH

Logic Low Output Voltages

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 ≤ VDDx

Supply Current per Channel

Quiescent Input Supply Current

IDDI(Q)

0.4

0.6

mA

Quiescent Output Supply Current

IDDO(Q)

1.2

1.7

mA

Dynamic Input Supply Current

IDDI(D)

0.08

mA/Mbps

Dynamic Output Supply Current

IDDO(D)

0.015

mA/Mbps

Undervoltage Lockout

Positive VDDx Threshold

VDDxUV+

2.6

V

Negative VDDx Threshold

VDDxUV−

2.4

V

VDDX Hysteresis

VDDxUVH

0.2

V

AC SPECIFICATIONS

Output Rise/Fall Time

tR/tF

3

ns

10% to 90%

Common-Mode Transient Immunity1

|CM|

25

35

kV/µs

VIx = VDDx, VCM = 1000 V,

transient magnitude = 800 V

Refresh Period

tr

1.6

µs

1

|CM| is the maximum common-mode voltage slewrate that can be sustained while maintaining Vo > 0.8VDDX. The common-mode voltage slewrates apply to both

rising and falling common-mode voltage edges.

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