LTC2864HDD-2#PBF

Drivers, Receivers, Transceivers Overview

The LTC2864HDD-2#PBF is a low-power, full-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. It operates on a 3V to 5.5V supply voltage and supports a maximum data rate of 250kbps in its low EMI mode. The device features ±60V fault protection on the transmission lines during all operational modes, including power-down. It provides an extended common mode range of ±25V and includes ±15kV ESD protection on interface pins. Packaged in an 8-lead (3mm × 3mm) plastic DFN with an exposed pad connected to PCB ground, it functions within a temperature range of -40°C to +125°C.

Drivers, Receivers, Transceivers Feature Summary

• Protected from overvoltage line faults up to ±60V
• Extended common mode input range of ±25V
• Guaranteed failsafe receiver operation for unpowered or idle buses
• High input impedance supporting up to 256 nodes

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 package type and temperature grade. Ensure the component matches the required duplex configuration and data rate specifications for the target application before procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this model for applications requiring robust fault tolerance on RS-485/RS-422 buses exposed to large ground loop voltages. The low EMI 250kbps mode is suitable for noise-sensitive environments. Verify that the 3V to 5.5V supply range aligns with the system power architecture.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC286x family of fault-protected transceivers. It shares pin compatibility with legacy parts like the LT1785 and LT1791. The 'H' suffix indicates the extended industrial temperature range, while 'DD' denotes the 8-lead DFN package.

Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed substitutes include other members of the LTC286x family such as the LTC2864IS-2#PBF for different temperature grades or the LTC2864CDD-2#PBF for commercial temperature ranges, provided the package and electrical characteristics remain compatible.