LTM2881CV-5#PBF

Overview

The LTM2881CV-5#PBF is a complete galvanically isolated full-duplex RS485/RS422 μModule transceiver manufactured by Analog Devices Inc. It operates within a supply voltage range of 4.5V to 5.5V and supports data rates up to 20 Mbps. The device features a minimum common mode transient immunity of 30kV/µs and functions at temperatures between 0°C and +70°C. Packaged in an LGA-32 surface-mount format, it integrates a low-noise DC/DC converter, eliminating the need for external components.

Feature Summary

• Integrates a complete isolated transceiver with an internal high-efficiency DC/DC converter, requiring no external components
• Provides galvanic isolation via magnetic coupling technology for robust signal integrity
• Supports both half-duplex and full-duplex communication modes over RS422 and RS485 standards

Applications

• Industrial automation systems requiring isolated serial communication
• Factory floor networks connecting PLCs and sensors
• Medical equipment needing electrical safety isolation
• Test and measurement instrumentation interfaces

Procurement Notes

Verify the specific suffix #PBF confirms lead-free compliance and RoHS status against current manufacturer documentation. Confirm the LGA-32 package dimensions match your PCB footprint requirements. Ensure the operating temperature range of 0°C to +70°C aligns with your environmental specifications. Cross-reference the datasheet revision date to ensure compatibility with your design constraints.

Selection Notes

Select this component when a compact, fully integrated isolated interface is required without external magnetics or capacitors. It is suitable for designs prioritizing board space reduction and simplified BOM management. Consider its 20 Mbps speed limit for applications not requiring higher throughput. Verify that the 2500Vrms isolation rating meets your system's safety standards.

Part Context

This part belongs to the LTM2881 series of μModules from Analog Devices. These modules combine power management and signal isolation into a single package. The CV-5 designation indicates the specific voltage and pin configuration variant. Development tools like DC1746A-B are available for evaluating EMI performance and functionality.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Consult Analog Devices application notes for potential cross-references or newer revisions within the same family before substituting.