LTM2881HY-5

Overview

The LTM2881HY-5#PBF is a complete galvanically isolated full-duplex RS485/RS422 μModule transceiver manufactured by Analog Devices Inc. It integrates a high-performance DC/DC converter and digital isolator within a single package, eliminating the need for external components. The device supports data rates up to 20 Mb/s with a common mode transient immunity of 30 kV/µs. It operates on a supply voltage range of 4.5 V to 5.5 V and functions within an ambient temperature range of -40°C to +105°C. The module utilizes a 32-lead LGA package for surface mount installation.

Feature Summary

• Integrates a complete isolated transceiver and DC/DC converter without requiring external components
• Provides high common mode transient immunity for robust signal integrity in noisy environments
• Supports both half-duplex and full-duplex communication protocols including RS485 and RS422

Applications

• Industrial automation systems requiring isolated serial communication
• Process control networks utilizing PROFIBUS or Modbus protocols
• Medical equipment needing galvanic isolation between subsystems
• Test and measurement instruments demanding high-speed data transfer

Procurement Notes

Verify the specific suffix designation to ensure compatibility with required isolation voltage levels and pin configurations. Confirm that the procurement channel provides genuine Analog Devices products to avoid counterfeit risks. Check for moisture sensitivity labeling as the component requires proper handling during storage and assembly processes.

Selection Notes

Select this module when design constraints require minimal external component count and high integration density. Consider the thermal performance characteristics inherent to the μModule architecture. Ensure the application environment falls within the specified operating temperature range and voltage limits for reliable long-term operation.

Part Context

This component belongs to the LTM2881 series of isolated interface modules. It represents a specialized solution for serial communication interfaces where electrical isolation is critical. The series includes variants tailored for different duplex modes and protocol support, offering a standardized approach to implementing robust industrial communication links.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence carefully if considering alternative isolated transceivers, as integration levels and isolation specifications may differ significantly across manufacturers.