LTC2864HS-2#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2864HS-2#TRPBF is a low-power, full-duplex RS485/RS422 transceiver manufactured by Analog Devices Inc. It operates on a 3V to 5.5V supply and features ±60V fault protection on data lines during all modes, including power-down. The device supports a maximum data rate of 250kbps with slew-rate limiting for low EMI applications. It includes an extended common mode range of ±25V, guaranteed failsafe receiver operation, and high input impedance supporting up to 256 nodes. The component provides ±15kV ESD protection on interface pins and integrates current-limited drivers with thermal shutdown. It is housed in a 14-lead plastic SOIC package and operates within a temperature range of -40°C to +125°C.

Drivers, Receivers, Transceivers Feature Summary

• Features ±60V overvoltage fault protection on transmission lines during powered-off and active states.
• Provides extended ±25V common mode input range for reliable operation in electrically noisy environments.
• Includes fully balanced differential receiver thresholds to ensure low duty cycle distortion and enhanced noise immunity.
• Integrates current-limited drivers and thermal shutdown protection to prevent damage during short-circuit conditions.

Drivers, Receivers, Transceivers Applications

• Supervisory Control and Data Acquisition (SCADA) systems
• Industrial control and instrumentation networks
• Automotive and transportation electronics
• Building automation, security systems, and HVAC controls

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging when sourcing from distributors. Confirm the HS grade designation corresponds to the -40°C to +125°C operating temperature range required for your application environment. Cross-reference the manufacturer part number with official Analog Devices documentation to ensure authenticity and correct pinout compatibility.

Drivers, Receivers, Transceivers Selection Notes

Select this model for full-duplex RS485/RS422 communication requiring robust fault tolerance against large ground loop voltages. The 250kbps slew-rate limited mode is suitable for reducing electromagnetic interference in sensitive industrial settings. Ensure the system logic voltage aligns with the VCC supply range of 3V to 5.5V. This component is appropriate where high node count support and extended common mode rejection are critical design parameters.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC286x family of ruggedized transceivers designed for harsh industrial environments. It shares pin compatibility with legacy parts like the LT1785 and LT1791, facilitating direct upgrades. The 'H' suffix indicates the extended temperature grade, while 'S' denotes the SOIC package. The '-2' variant specifically offers the lower 250kbps data rate option compared to the 20Mbps variants in the same series.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet explicitly states pin compatibility with LT1785 and LT1791 devices. Verify that the replacement part matches the full-duplex configuration and the specific 250kbps data rate limitation. Ensure the substitute component also supports the required ±60V fault protection and extended common mode range if used in similar high-noise applications.