LTC2856HDD-2#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2856HDD-2#TRPBF is a low-power, half-duplex RS485/RS422 transceiver manufactured by Analog Devices Inc. It operates on a single 5V supply and supports a maximum data rate of 250kbps with slew-rate limiting to minimize electromagnetic interference (EMI). The device features enhanced electrostatic discharge (ESD) protection capable of withstanding ±15kV human body model discharges without latchup or damage. It incorporates current-limited drivers and thermal shutdown for fault protection. The receiver input impedance exceeds 96kΩ, representing a one-eighth unit load that supports up to 256 nodes per bus. It is available in an 8-lead 3mm × 3mm DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate limited driver outputs reduce high-frequency EMI emissions for compliant communication at lower data rates.
• High input impedance receiver design allows connection of up to 256 nodes on a single bus network.
• Integrated failsafe mechanism guarantees a logic-high output state when inputs are floating, shorted, or unpowered.
• Robust interface pins withstand ±15kV ESD stress without sustaining damage or experiencing latchup.

Drivers, Receivers, Transceivers Applications

• Low EMI industrial fieldbus networks requiring strict emission limits
• Multipoint communication systems supporting high node density
• Backplane transceiver interfaces in embedded control systems

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 datasheet revision for electrical characteristics. Confirm RoHS compliance status through authorized distribution channels prior to integration into production designs.

Drivers, Receivers, Transceivers Selection Notes

Select this variant specifically for applications requiring reduced electromagnetic interference through slew-rate limiting. The 250kbps data rate distinguishes it from the 20Mbps variants within the same family. Verify that the half-duplex configuration aligns with the system's bidirectional communication requirements.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2856 series of rugged RS485/RS422 transceivers designed for harsh electrical environments. The series includes full-duplex variants and higher-speed options. The HDD suffix indicates an 8-lead plastic DFN package with tape and reel packaging, suitable for automated surface-mount assembly processes.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2856HDD-2#PBF