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  2. Interface and Isolation
  3. Digital Isolation Technology
  4. Isolated RS-232
  5. LTM2882

Data Sheet
PDF
JP
User Guides
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Overview

Features and Benefits

  • RS232 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
  • 1.62V to 5.5V Logic Supply for Flexible Digital Interfacing
  • High Speed Operation
    • 1Mbps for 250pF/3kΩ Load
    • 250kbps for 1nF/3kΩ Load
    • 100kbps for 2.5nF/3kΩ TIA/EIA-232-F Load
  • 3.3V (LTM2882-3) or 5V (LTM2882-5) Operation
  • No Damage or Latchup to ±10kV HBM ESD on Isolated RS232 Interface or Across Isolation Barrier
  • High Common Mode Transient Immunity: 30kV/μs
  • Maximum Continuous Working Voltage: 560VPEAK
  • True RS232 Compliant Output Levels
  • 15mm × 11.25mm BGA and LGA Packages

Product Details

The LTM2882 is a complete galvanically isolated dual RS232 μModule® (micromodule) transceiver. No external components are required. A single 3.3V or 5V supply powers both sides of the interface through an integrated, isolated DC/DC converter. A logic supply pin allows easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply.

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 with different grounds, allowing for large common mode voltages. Uninterrupted communication is guaranteed for common mode transients greater than 30kV/μs.

This part is compatible with the TIA/EIA-232-F standard. Driver outputs are protected from overload and can be shorted to ground or up to ±15V without damage. An auxiliary isolated digital channel is available. This channel allows configuration for half-duplex operation by controlling the DE pin.

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

Applications

  • Isolated RS232 Interface
  • Industrial Communication
  • Test and Measurement Equipment
  • Breaking RS232 Ground Loops

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Evaluation Kits (4)

Documentation & Resources

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  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (2)
  • Product Selector Card (4)
  • Safety and Regulatory Compliance (1)
  • Informational (1)
  • Product Selection Guide (1)
  • Videos (1)
  • Technical Articles (1)
    • Document Type

    Product Recommendations

    LTM2882 Companion Parts

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    Design Resources

    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 Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    LTM2882CV-3#PBF Material Declaration Reliability Data 32-Lead LGA (15mm x 11.25mm x 2.82mm)
    LTM2882CV-5#PBF Material Declaration Reliability Data 32-Lead LGA (15mm x 11.25mm x 2.82mm)
    LTM2882CY-3#PBF Material Declaration Reliability Data 32-Lead BGA (15mm x 11.25mm x 3.42mm)
    LTM2882CY-5#PBF Material Declaration Reliability Data 32-Lead BGA (15mm x 11.25mm x 3.42mm)
    LTM2882HY-3#PBF Material Declaration Reliability Data 32-Lead BGA (15mm x 11.25mm x 3.42mm)
    LTM2882HY-5#PBF Material Declaration Reliability Data 32-Lead BGA (15mm x 11.25mm x 3.42mm)
    LTM2882IV-3#PBF Material Declaration Reliability Data 32-Lead LGA (15mm x 11.25mm x 2.82mm)
    LTM2882IV-5#PBF Material Declaration Reliability Data 32-Lead LGA (15mm x 11.25mm x 2.82mm)
    LTM2882IY-3#PBF Material Declaration Reliability Data 32-Lead BGA (15mm x 11.25mm x 3.42mm)
    LTM2882IY-5#PBF Material Declaration Reliability Data 32-Lead BGA (15mm x 11.25mm x 3.42mm)
    Wafer Fabrication Data R596 Reliability Data

    PCN-PDN Information

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    Select Model for PCN Information
    • LTM2882CV-3#PBF Production
    • LTM2882CV-5#PBF Production
    • LTM2882CY-3#PBF Production
    • LTM2882CY-5#PBF Production
    • LTM2882HY-3#PBF Production
    • LTM2882HY-5#PBF Production
    • LTM2882IV-3#PBF Production
    • LTM2882IV-5#PBF Production
    • LTM2882IY-3#PBF Production
    • LTM2882IY-5#PBF Production

    Support & Discussions

    LTM2882 Discussions

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