ADM3485E 查看數據表（PDF） - Analog Devices

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ADM3485E

±15 kV ESD-Protected, 3.3 V,12 Mbps, EIA RS-485/RS-422 Transceiver

Analog Devices 

ADM3485E

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Functional Block Diagram .............................................................. 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Timing Specifications....................................................................... 4

Absolute Maximum Ratings............................................................ 5

Thermal Resistance ...................................................................... 5

ESD Caution.................................................................................. 5

Pin Configuration and Pin Function Descriptions...................... 6

REVISION HISTORY

8/10—Rev. C to Rev. D

Changes to Table 1, Driver, Logic Inputs ...................................... 3

12/06—Rev. B to Rev. C

Updated Format..................................................................Universal

Removed PDIP Model .......................................................Universal

Changes to Features, Applications, and General Description .... 1

Changes to Specifications ................................................................ 3

Changes to Timing Specifications .................................................. 4

Changes to Absolute Maximum Ratings ....................................... 5

Reorganized Test Circuits and Switching

Characteristics Section..................................................................... 7

Replaced Figure 3 to Figure 11 ....................................................... 7

Deleted Figure 12 to Figure 14........................................................ 8

Changes to Figure 15 to Figure 20.................................................. 9

Changes to Figure 21 and Figure 22............................................. 10

Changes to Table 9.......................................................................... 11

Deleted Figure 24............................................................................ 11

Removed Fast Transient Burst Immunity

(IEC1000-4-4) Section ................................................................... 12

Updated Outline Dimensions ....................................................... 13

Changes to Ordering Guide .......................................................... 13

10/04—Rev. A to Rev. B

Updated Format..................................................................Universal

Changes to Power-Supply Current, Table 1 .................................. 3

Updated Outline Dimensions ....................................................... 14

Changes to Ordering Guide .......................................................... 14

5/00—Rev. 0 to Rev. A

Test Circuits and Switching Characteristics...................................7

Typical Performance Characteristics ..............................................9

Standards and Testing .................................................................... 11

ESD Testing ................................................................................. 11

Applications Information .............................................................. 12

Differential Data Transmission ................................................ 12

Cable and Data Rate................................................................... 12

Receiver Open-Circuit Fail-Safe............................................... 12

Outline Dimensions ....................................................................... 13

Ordering Guide .......................................................................... 13

Rev. D | Page 2 of 16

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