LTC1484
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LTC1484

Low Power RS485 Transceiver with Receiver Fail-Safe

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Part Models 8
1ku List Price Starting From $2.33
Features
  • No Damage or Latchup to ±15kV ESD (Human Body Model), IEC-1000-4-2 Level 4 Contact (±8kV) and Level 3 (±8kV) Air Gap Specifications
  • Guaranteed High Receiver Output State for Floating, Shorted or Terminated Inputs with No Signal Present
  • Drives Low Cost Residential Telephone Wires
  • Low Power: ICC = 700μA Max with Driver Disabled
  • ICC = 900μA Max for Driver Enable with No Load
  • 20μA Max Quiescent Current in Shutdown Mode
  • Single 5V Supply
  • -7V to 12V Common Mode Range Permits ±7V Ground Difference Between Devices on the Data Line
  • Power Up/Down Glitch-Free Driver Outputs
  • Up to 32 Transceivers on the Bus
  • Pin Compatible with the LTC485
  • Available in 8-Lead MSOP, PDIP and SO Packages
Additional Details
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The LTC1484 is a low power RS485 compatible transceiver. In receiver mode, it offers a fail-safe feature which guarantees a high receiver output state when the inputs are left open, shorted together or terminated with no signal present. No external components are required to ensure the high receiver output state.

Both driver and receiver feature three-state outputs with separate receiver and driver control pins. The driver outputs maintain high impedance over the entire common mode range when three-stated. Excessive power dissipation caused by bus contention or faults is prevented by a thermal shutdown circuit that forces the driver outputs into a high impedance state.

Enhanced ESD protection allows the LTC1484 to withstand ±15kV (human body model), IEC-1000-4-2 level 4 (±8kV) contact and level 3 (±8kV) air discharge ESD without latchup or damage.

The LTC1484 is fully specified over the commercial and industrial temperature ranges and is available in 8-lead MSOP, PDIP and SO packages.

Applications

  • Battery-Powered RS485/RS422 Applications
  • Low Power RS485/RS422 Transceiver
  • Level Translator
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Documentation View All Documentation
Part Models 8
1ku List Price Starting From $2.33
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LTC1484

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Data Sheet

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UPDATED 08/24/2007
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LTC1484: Low Power RS485 Transceiver with Receiver Fail-Safe Data Sheet

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UPDATED 02/21/2008
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LTC1484: レシーバ・フェイルセーフ付き低消費電力EIA485トランシーバ データシート

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User Guide

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UPDATED 04/19/2013
English
UG-543:Evaluation Boards for Full-Duplex and Half-Duplex RS-485 Transceivers (Rev.A) redirect icon

783 kB

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Reliability Data

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UPDATED 03/22/2018
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R397 Reliability Data redirect icon

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Documentation

Product Selection Guide 1

Digital Isolation and Interface Technology Selection Guide

Product Selector Card 2

Ultra Rugged ±60V RS485 Transceivers
RS485 Quick Guide

Video

1

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2020-10-28

01:00

Protect your Innovations: from High Precision to High Power

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC1484CMS8#PBF 8-Lead MSOP external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC1484CMS8#TRPBF 8-Lead MSOP external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC1484CN8#PBF 8-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC1484CS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC1484CS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC1484IN8#PBF 8-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC1484IS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LTC1484IS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link

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Product Lifecycle

PCN

Oct 11, 2022

- 22_0244

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LTC1484CMS8#PBF

PRODUCTION

LTC1484CMS8#TRPBF

PRODUCTION

pdf

PCN22_0244_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download

Apr 18, 2022

- 22_0050

UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

LTC1484CMS8#PBF

PRODUCTION

LTC1484CMS8#TRPBF

PRODUCTION

pdf

PCN22_0050_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

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xlsm

Delta Qualification Matrix

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Feb 3, 2020

- 20_0128

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC1484CMS8#PBF

PRODUCTION

LTC1484CMS8#TRPBF

PRODUCTION

pdf

PCN20_0128_Form

external-icon

xls

Material_Report

Download

Oct 8, 2024

- 24_0234

Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package

LTC1484CN8#PBF

PRODUCTION

LTC1484IN8#PBF

PRODUCTION

pdf

PCN24_0234_Form

external-icon

xls

Material_Report

Download

pdf

Marking Comparison

external-icon

Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LTC1484CN8#PBF

PRODUCTION

LTC1484IN8#PBF

PRODUCTION

pdf

PCN22_0241_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

Aug 6, 2022

- 22_0172

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LTC1484CN8#PBF

PRODUCTION

LTC1484IN8#PBF

PRODUCTION

pdf

PCN22_0172_Form

external-icon

xls

Material_Report

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xlsm

Delta Qualification Matrix

Download

Oct 24, 2024

- 24_0246

Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package

LTC1484CS8#PBF

PRODUCTION

LTC1484CS8#TRPBF

PRODUCTION

pdf

PCN24_0246_Form

external-icon

xls

Material_Report

Download

pdf

Marking Comparison

external-icon

xlsm

Delta Qualification Matrix

Download

Oct 12, 2022

- 22_0255

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LTC1484CS8#PBF

PRODUCTION

LTC1484CS8#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download

Jun 16, 2021

- 21_0026

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LTC1484CS8#PBF

PRODUCTION

LTC1484CS8#TRPBF

PRODUCTION

LTC1484IS8#PBF

PRODUCTION

LTC1484IS8#TRPBF

PRODUCTION

pdf

PCN21_0026_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download

Dec 14, 2023

- 22_0255

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LTC1484IS8#PBF

PRODUCTION

LTC1484IS8#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download

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Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0244

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LTC1484CMS8#PBF

PRODUCTION

LTC1484CMS8#TRPBF

PRODUCTION

pdf

PCN22_0244_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download
Apr 18, 2022

- 22_0050

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UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices

LTC1484CMS8#PBF

PRODUCTION

LTC1484CMS8#TRPBF

PRODUCTION

pdf

PCN22_0050_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download
Feb 3, 2020

- 20_0128

arrow down

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC1484CMS8#PBF

PRODUCTION

LTC1484CMS8#TRPBF

PRODUCTION

pdf

PCN20_0128_Form

external-icon

xls

Material_Report

Download
Oct 8, 2024

- 24_0234

arrow down

Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package

LTC1484CN8#PBF

PRODUCTION

LTC1484IN8#PBF

PRODUCTION

pdf

PCN24_0234_Form

external-icon

xls

Material_Report

Download

pdf

Marking Comparison

external-icon
Oct 11, 2022

- 22_0241

arrow down

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LTC1484CN8#PBF

PRODUCTION

LTC1484IN8#PBF

PRODUCTION

pdf

PCN22_0241_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon
Aug 6, 2022

- 22_0172

arrow down

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LTC1484CN8#PBF

PRODUCTION

LTC1484IN8#PBF

PRODUCTION

pdf

PCN22_0172_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download
Oct 24, 2024

- 24_0246

arrow down

Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package

LTC1484CS8#PBF

PRODUCTION

LTC1484CS8#TRPBF

PRODUCTION

pdf

PCN24_0246_Form

external-icon

xls

Material_Report

Download

pdf

Marking Comparison

external-icon

xlsm

Delta Qualification Matrix

Download
Oct 12, 2022

- 22_0255

arrow down

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LTC1484CS8#PBF

PRODUCTION

LTC1484CS8#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download
Jun 16, 2021

- 21_0026

arrow down

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LTC1484CS8#PBF

PRODUCTION

LTC1484CS8#TRPBF

PRODUCTION

LTC1484IS8#PBF

PRODUCTION

LTC1484IS8#TRPBF

PRODUCTION

pdf

PCN21_0026_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download
Dec 14, 2023

- 22_0255

arrow down

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LTC1484IS8#PBF

PRODUCTION

LTC1484IS8#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download

Software & Part Ecosystem

Parts Product Life Cycle Description

Isolated RS-4851
LTM2881
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PRODUCTION

Complete Isolated RS485/RS422 μModule Transceiver + Power

Evaluation Kits 1

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EVAL-RS485HDEBZ

Standard RS-485 Half-Duplex Evaluation Board, EVAL-RS485HDEBZ

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EVAL-RS485HDEBZ

Standard RS-485 Half-Duplex Evaluation Board, EVAL-RS485HDEBZ

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EVAL-RS485HDEBZ
Standard RS-485 Half-Duplex Evaluation Board, EVAL-RS485HDEBZ
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Product Detail

The EVAL-RS485HDEBZ allows quick and easy evaluation of half-duplex RS-485 transceivers with standard 8-lead SOIC footprints. The evaluation board allows interfacing via screw terminal block to digital I/O for driver input (DI), receiver output (RO), driver enable (DE) and receiver output (RO). Bus signals A and B (half-duplex bus) can be connected to a bus screw terminal block. One or two termination resistors can be connected to A and B via jumper settings, in order to evaluation the half-duplex RS-485 driver and receiver. Footprints are provided for pull-up and pull-down (biasing resistors) on the bus.

Devices for evaluation on the board must be ordered separately.

Resources

pdf icon

pdf

UG-543:Evaluation Boards for Full-Duplex and Half-Duplex RS-485 Transceivers (Rev.A) Download

783 kB

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Evaluation Kits1

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EVAL-RS485HDEBZ

Standard RS-485 Half-Duplex Evaluation Board, EVAL-RS485HDEBZ

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