ADM2481 Datasheet, PDF (2/20 Pages) Analog Devices – Half-Duplex, iCoupler Isolated RS-485 Transceiver

ADM2481
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Specifications .................................................................. 4
Package Characteristics ............................................................... 4
Regulatory Information (Pending) ............................................ 4
Insulation and Safety-Related Specifications............................ 4
VDE 0884 Insulation Characteristics (Pending)...................... 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
REVISION HISTORY
7/10—Revision 0: Initial Version
Typical Performance Characteristics ..............................................8
Test Circuits..................................................................................... 11
Switching Characteristics .............................................................. 12
Circuit Description......................................................................... 13
Electrical Isolation...................................................................... 13
Truth Tables................................................................................. 14
Thermal Shutdown .................................................................... 14
True Fail-Safe Receiver Inputs .................................................. 14
Magnetic Field Immunity.......................................................... 14
Applications Information .............................................................. 16
Printed Circuit Board (PCB) Layout ....................................... 16
Isolated Power Supply Circuit .................................................. 16
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 17
Rev. 0 | Page 2 of 20