The LTM2887IY-5S#PBF is a high-performance isolated μModule (micromodule) transceiver from Linear Technology, designed to provide robust communication in noisy environments. This device integrates an isolated RS485/RS422 transceiver with an isolated power supply, offering a complete, galvanically isolated interface solution for digital communication with the convenience of a single component.

Key Features

• Isolation: The LTM2887IY-5S#PBF provides up to 2500V_RMS of galvanic isolation between the logic side and the transceiver side, effectively protecting the logic side from large common-mode voltages and ground differences.
• Integrated Power Supply: An integrated, low-EMI, switch-mode power supply eliminates the need for multiple external components. It simplifies design and PCB layout while providing isolated power to the transceiver side.
• High Data Rates: Supports data rates up to 20Mbps, making it suitable for high-speed applications including industrial control, instrumentation, and medical equipment.
• Robustness: With its integrated, shielded transformer, the LTM2887IY-5S#PBF offers excellent EMC performance, reducing radiated emissions and susceptibility to EMI.
• Temperature Range: It operates across an industrial temperature range from -40°C to 105°C, ensuring reliable function in extreme environments.
• Fail-Safe Features: Includes fail-safe receiver functionality for open, shorted, or terminated but idle data lines, enhancing system reliability.
• Package: The device comes in a compact 15mm x 11.25mm surface-mount BGA package, which is RoHS compliant and suitable for automated assembly processes.

Applications

The LTM2887IY-5S#PBF is ideal for a variety of applications where isolation is critical to protect sensitive digital components from high voltages and common-mode transients. These applications include:

• Industrial Automation and Control Systems
• Medical Equipment and Devices
• Instrumentation
• Automotive Systems
• Networking and Telecommunications

Conclusion

The LTM2887IY-5S#PBF from Linear Technology is a robust, integrated solution for isolated RS485/RS422 communication, providing both isolation and power in a single package. Its combination of high-speed data transfer, rugged design, and ease-of-use makes it an excellent choice for designers looking to improve system reliability and simplify their isolated communication designs.