adm3485 Analog Devices, Inc., adm3485 Datasheet - Page 2
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adm3485
Manufacturer Part Number
adm3485
Description
3.3 V Slew Rate Limited, Half- And Full-duplex, Rs-485/rs-422 Transceivers
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADM3485.pdf
(20 pages)
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagrams............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 4
Absolute Maximum Ratings............................................................ 7
Pin Configurations and Function Descriptions ........................... 8
Test Circuits....................................................................................... 9
Switching Characteristics .............................................................. 11
REVISION HISTORY
10/06—Rev. A to Rev. B
Updated Format..................................................................Universal
Added ADM3491................................................................Universal
Changes to Specifications Section.................................................. 4
Changes to Typical Applications Section .................................... 14
7/06—Rev. 0 to Rev. A
Changes to Applications .................................................................. 1
Changes to General Description .................................................... 1
Changes to Figure 19...................................................................... 10
Changes to Typical Applications Section .................................... 13
Changes to Figure 31 and Figure 32............................................. 14
Updated Outline Dimensions ....................................................... 15
10/05—Revision 0: Initial Version
Timing Specifications—ADM3485/ADM3490/ADM3491.... 5
Timing Specifications—ADM3483/ADM3488........................ 5
Timing Specifications—ADM3483/ADM3485/ADM3488/
ADM3490/ADM3491 .................................................................. 6
ESD Caution.................................................................................. 7
Rev. B | Page 2 of 20
Typical Performance Characteristics ........................................... 12
Circuit Description......................................................................... 14
Outline Dimensions ....................................................................... 17
Devices with Receiver/Driver Enables—
ADM3483/ADM3485/ADM3491............................................ 14
Devices Without Receiver/Driver Enables—
ADM3488/ADM3490................................................................ 14
Reduced EMI and Reflections—ADM3483/ADM3488 ....... 14
Low Power Shutdown Mode..................................................... 14
Driver Output Protection.......................................................... 14
Propagation Delay ...................................................................... 14
Typical Applications................................................................... 14
Line Length vs. Data Rate ......................................................... 15
Ordering Guide .......................................................................... 18