LTM2881
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LTM2881

Complete Isolated RS485/RS422 μModule Transceiver + Power

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Info: : PRODUCTION tooltip
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Part Details
Part Models 14
1ku List Price Starting From $9.95
Features
  • RS485/RS422 Transceiver: 2500VRMS for 1 Minute
  • UL-CSA Recognized File #E151738
  • CSA Component Acceptance Notice 5A
  • Isolated DC Power: 5V at Up to 200mA
  • No External Components Required
  • 20Mbps or Low EMI 250kbps Data Rate
  • High ESD: ±15kV HBM on Transceiver Interface
  • High Common Mode Transient Immunity: 30kV/μs
  • Integrated Selectable 120Ω Termination
  • 3.3V (LTM2881-3) or 5.0V (LTM2881-5) Operation
  • 1.62V to 5.5V Logic Supply Pin for Flexible Digital Interface
  • Maximum Continuous Working Voltage: 560VPEAK
  • High Input Impedance Failsafe RS485 Receiver
  • Current Limited Drivers and Thermal Shutdown
  • Compatible with TIA/EIA-485-A and PROFIBUS
  • High Impedance Output During Internal Fault Condition
  • Low Current Shutdown Mode (< 10μA)
  • General Purpose CMOS Isolated Channel
  • 15mm × 11.25mm BGA and LGA Packages
Additional Details
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The LTM2881 is a complete galvanically isolated full-duplex RS485/RS422 μModule® (micromodule) transceiver. No external components are required. A single supply powers both sides of the interface through an integrated, isolated, low noise, efficient 5V output DC/DC converter.

Coupled inductors and an isolation power transformer provide 2500VRMS of isolation between the line transceiver and the logic interface. This device is ideal for systems where the ground loop is broken allowing for large common mode voltage variation. Uninterrupted communication is guaranteed for common mode transients greater than 30kV/μs.

Maximum data rates are 20Mbps or 250kbps in slew limited mode. Transmit data, DI and receive data, RO, are implemented with event driven low jitter processing. The receiver has a one-eighth unit load supporting up to 256 nodes per bus. A logic supply pin allows easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.

Enhanced ESD protection allows this part to withstand up to ±15kV (human body model) on the transceiver interface pins to isolated supplies and ±10kV through the isolation barrier to logic supplies without latch-up or damage.

Applications

  • Isolated RS485/RS422 Interface
  • Industrial Networks
  • Breaking RS485 Ground Loops
  • Isolated PROFIBUS-DP Networks
Part Models 14
1ku List Price Starting From $9.95

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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LTM2881IV-3#PBF
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LTM2881IY-3#PBF
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LTM2881IY-5#PBF
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LTM2881MPY-3#PBF
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LTM2881MPY-5#PBF
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Product Lifecycle

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Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

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Feb 28, 2020

- 20_0123

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM2881CV-3#PBF

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LTM2881CV-5#PBF

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LTM2881CY-3#PBF

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Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jul 21, 2021

- 21_0159

arrow down

Ink Mark to Laser Mark Conversion for µModule

LTM2881CV-3#PBF

PRODUCTION

LTM2881CV-5#PBF

PRODUCTION

LTM2881CY-3#PBF

PRODUCTION

LTM2881CY-5#PBF

PRODUCTION

LTM2881HV-3#PBF

PRODUCTION

LTM2881HV-5#PBF

PRODUCTION

LTM2881HY-3#PBF

PRODUCTION

LTM2881HY-5#PBF

PRODUCTION

LTM2881IV-3#PBF

PRODUCTION

LTM2881IV-5#PBF

PRODUCTION

LTM2881IY-3#PBF

PRODUCTION

LTM2881IY-5#PBF

PRODUCTION

LTM2881MPY-3#PBF

PRODUCTION

LTM2881MPY-5#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

arrow down

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM2881CV-3#PBF

PRODUCTION

LTM2881CV-5#PBF

PRODUCTION

LTM2881CY-3#PBF

PRODUCTION

LTM2881CY-5#PBF

PRODUCTION

LTM2881HV-3#PBF

PRODUCTION

LTM2881HV-5#PBF

PRODUCTION

LTM2881HY-3#PBF

PRODUCTION

LTM2881HY-5#PBF

PRODUCTION

LTM2881IV-3#PBF

PRODUCTION

LTM2881IV-5#PBF

PRODUCTION

LTM2881IY-3#PBF

PRODUCTION

LTM2881IY-5#PBF

PRODUCTION

LTM2881MPY-3#PBF

PRODUCTION

LTM2881MPY-5#PBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 4

reference details image

DC1503A-A

LTM2881-3 RS485 | µModule Isolator Demo Board (3.3V Supply)

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DC1746A-B

LTM2881-5 Low EMI Test Board (For EMI Evaluation Purposes Only, No VL & No GPIO)

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DC1503A-B

LTM2881-5 RS485 | µModule Isolator Demo Board (5.0V Supply)

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DC1746A-A

LTM2881-3 Low EMI Test Board (For EMI Evaluation Purposes Only, No VL & No GPIO)

Tools & Simulations

Tools & Simulations 1

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