LTC2858HDD-2#PBF

Drivers, Receivers, Transceivers Overview

The LTC2858HDD-2#PBF is a low-power, full-duplex RS485/RS422 transceiver manufactured by Analog Devices Inc. It operates on a 5V supply and supports a maximum data rate of 250kbps with slew-rate limiting to minimize electromagnetic interference. The device features enhanced ESD protection capable of withstanding ±15kV (human body model) without latchup or damage. It incorporates a one-eighth unit load receiver input resistance, allowing for up to 256 nodes per bus in C and I-grade applications. The component includes current-limited drivers and thermal shutdown protection to prevent excessive power dissipation during bus contention or faults.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate limited driver outputs reduce high-frequency EMI emissions for compliance with emission standards.
• High input impedance receiver design supports extensive network topologies with up to 256 nodes.
• Integrated failsafe mechanism guarantees a logic-high output state when inputs are floating or shorted.
• Robust protection features include ±15kV ESD tolerance, current limiting, and thermal shutdown.

Drivers, Receivers, Transceivers Applications

• Low EMI industrial communication networks requiring RS485 or RS422 compatibility
• Backplane transceiver interfaces in embedded systems
• Level translation between different voltage domains in serial communication buses

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Ensure the procurement channel provides valid traceability and authenticity certificates. Confirm that the delivered components match the specified H-grade temperature range and MSOP-10 or DFN-10 packaging requirements before integration into production lines.

Drivers, Receivers, Transceivers Selection Notes

Select this component when low electromagnetic interference is critical due to its 250kbps slew-rate limited operation. It is suitable for applications requiring full-duplex communication with high node counts supported by the one-eighth unit load receiver. Consider the H-grade temperature rating for environments operating up to 125°C. Verify that the 5V supply voltage aligns with the system power architecture.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2858 family of low-power RS485/RS422 transceivers. It is distinguished from the LTC2858-1 by its reduced 250kbps data rate and slew-rate limiting capabilities designed for EMI reduction. The device shares functional similarities with the LTC2856 and LTC2857 series but offers full-duplex operation with enable pins in a compact 10-lead package format.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers: None identified in verified source material.