ADUM1447 datasheet(5/24 Pages) AD

部件名	ADUM1447

功能描述	Micropower Quad-Channel Digital Isolators

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Data Sheet

ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447

ELECTRICAL CHARACTERISTICS—2.5 V OPERATION

All typical specifications are at TA = 25°C, VDD1 = VDD2 = 2.5 V. Minimum/maximum specifications apply over the entire recommended

operating range of 2.25 V ≤ VDD1 ≤ 2.75 V, 2.25 V ≤ VDD2 ≤ 2.75 V, and −40°C ≤ TA ≤ +125°C, unless otherwise noted. Switching

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

Table 4.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

SWITCHING SPECIFICATIONS

Data Rate

2

Mbps

Within PWD limit

Propagation Delay

tPHL, tPLH

112

180

ns

50% input to 50% output

Change vs. Temperature

280

ps/°C

Pulse-Width Distortion

PWD

12

ns

|tPLH − tPHL|

Minimum Pulse Width

PW

500

ns

Within PWD limit

Propagation Delay Skew1

tPSK

10

ns

Channel Matching

Codirectional

tPSKCD

10

ns

Opposing Direction

tPSKOD

30

ns

1 tPSK is the magnitude of the worst-case difference in tPHL or tPLH that is measured between units at the same operating temperature, supply voltages, and output load within the

recommended operating conditions.

Table 5.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

SUPPLY CURRENT

2 Mbps, no load

ADuM1440/ADuM1445

IDD1

623

800

µA