LTC1481
Info: : PRODUCTION
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LTC1481

Ultra-Low Power RS485 Transceiver with Shutdown

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 6
1ku List Price Starting From $1.86
Features
  • Low Power: ICC = 120µA Max with Driver Disabled
  • Drivers/Receivers Have ±10kV ESD Protection
  • 1µA Quiescent Current in Shutdown Mode
  • High Speed: Up to 2.5Mbits/s Data Rate
  • ICC = 500µA Max with Driver Enabled, No Load
  • Single 5V Supply
  • -7V to 12V Common-Mode Range Permits ±7V Ground Difference Between Devices on the Data Line
  • Thermal Shutdown Protection
  • Power Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Transceiver
  • Driver Maintains High Impedance in Three-State or with the Power Off
  • Up to 32 Transceivers on the Bus
  • 30ns Typical Driver Propagation Delays with 5ns Skew
  • Pin Compatible with the LTC485
Additional Details
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The LTC1481 is an ultralow power differential line transceiver designed for data transmission standard RS485 applications. It will also meet the requirements of RS422. The CMOS design offers significant power savings over its bipolar counterparts without sacrificing ruggedness against overload or ESD damage. Typical quiescent current is only 80µA while operating and less than 1µA in shutdown.

The driver and receiver feature three-state outputs, with the driver outputs maintaining high impedance over the entire common mode range. Excessive power dissipation caused by bus contention or faults is prevented by a thermal shutdown circuit which forces the driver outputs into a high impedance state. The receiver has a fail-safe feature which guarantees a high output state when the inputs are left open.

The LTC1481 is fully specified over the commercial and extended industrial temperature range and is available in 8-pin PDIP and SO packages.

Applications

  • Battery-Powered RS485/RS422 Applications
  • Low Power RS485/RS422 Transceiver
  • Level Translator
Part Models 6
1ku List Price Starting From $1.86

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC1481CN8#PBF
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LTC1481CS8#PBF
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LTC1481CS8#TRPBF
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LTC1481IN8#PBF
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LTC1481IS8#PBF
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LTC1481IS8#TRPBF
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Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

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

LTC1481CN8#PBF

PRODUCTION

LTC1481IN8#PBF

PRODUCTION

Dec 14, 2023

- 22_0255

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

LTC1481CS8#PBF

PRODUCTION

LTC1481CS8#TRPBF

PRODUCTION

LTC1481IS8#PBF

PRODUCTION

LTC1481IS8#TRPBF

PRODUCTION

Jun 16, 2021

- 21_0026

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

LTC1481CS8#PBF

PRODUCTION

LTC1481CS8#TRPBF

PRODUCTION

LTC1481IS8#PBF

PRODUCTION

LTC1481IS8#TRPBF

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0241

arrow down

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

Aug 6, 2022

- 22_0172

arrow down

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

LTC1481CN8#PBF

PRODUCTION

LTC1481IN8#PBF

PRODUCTION

Dec 14, 2023

- 22_0255

arrow down

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

LTC1481CS8#PBF

PRODUCTION

LTC1481CS8#TRPBF

PRODUCTION

LTC1481IS8#PBF

PRODUCTION

LTC1481IS8#TRPBF

PRODUCTION

Jun 16, 2021

- 21_0026

arrow down

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

LTC1481CS8#PBF

PRODUCTION

LTC1481CS8#TRPBF

PRODUCTION

LTC1481IS8#PBF

PRODUCTION

LTC1481IS8#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

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

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

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.

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