LTC2865IDE#PBF

Drivers, Receivers, Transceivers Overview

The LTC2865IDE#PBF is a low-power, full-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. It operates on a primary supply voltage (VCC) ranging from 3V to 5.5V and features an independent logic interface supply pin (VL) supporting 1.65V to 5.5V for flexible digital interfacing. The device supports selectable data rates of up to 20Mbps or a low EMI mode at 250kbps. It provides ±60V fault protection on transmission lines and withstands ±15kV ESD on interface pins. The component is housed in a 12-lead DFN package with an exposed pad and is rated for an operating temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Features ±60V overvoltage fault protection on data lines during all operational modes, including power-down.
• Includes an independent VL pin allowing the logic interface to operate at voltages as low as 1.65V.
• Provides enhanced ESD protection withstanding ±15kV HBM on interface pins without latchup.
• Supports extended common mode input range of ±25V for reliable operation in electrically noisy environments.

Drivers, Receivers, Transceivers Applications

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

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm the exact package type and temperature grade. Ensure that the #PBF designation aligns with lead-free finish requirements for your assembly process. Cross-reference the part number with authorized distributors to confirm current availability status and compliance with relevant environmental directives.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a full-duplex interface is required alongside an independent logic supply voltage below the main VCC level. The device is suitable for applications demanding high noise immunity and robust fault tolerance on long bus lines. Consider the thermal characteristics of the DFN package if the design involves significant power dissipation or limited PCB copper area for heat spreading.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2862/LTC2863/LTC2864/LTC2865 family of ruggedized transceivers. While sharing similar fault protection and ESD specifications, the LTC2865 is distinct within the series due to its full-duplex architecture and the inclusion of the VL pin for isolated logic levels. Other family members may offer half-duplex operation or lack the separate logic supply capability.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet indicates the device is pin compatible with LT1785 and LT1791. Verify that these legacy parts meet the specific ±60V fault protection and ESD requirements of the current design before substitution.