LTC2857HMS8-1#TRPBF

Drivers, Receivers, Transceivers Overview

The Analog Devices LTC2857HMS8-1#TRPBF is a low-power, full-duplex RS485/RS422 transceiver operating on a 5V supply. It supports maximum data rates of 20Mbps or 250kbps for low EMI applications. The receiver features a one-eighth unit load, supporting up to 256 nodes per bus (C and I-Grade). Enhanced ESD protection withstands ±15kV HBM without latchup. The device includes current-limited drivers and thermal shutdown. Supply current in receive mode is typically 900µA maximum. It operates within temperature ranges of 0°C to 70°C (C-Grade), -40°C to 85°C (I-Grade), or -40°C to 125°C (H-Grade).

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication with independent driver and receiver channels.
• High input impedance receiver supporting up to 256 nodes on the bus.
• Robust protection against electrostatic discharge up to ±15kV HBM.
• Integrated thermal shutdown and current limiting for fault tolerance.

Drivers, Receivers, Transceivers Applications

• Industrial automation networks requiring high node density.
• Low electromagnetic interference communication systems.
• Harsh electrical environments with potential bus faults.

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific temperature grade suffix (C, I, or H) required for your application environment, as the base model number does not specify it. Confirm that the #TRPBF suffix indicates tape and reel packaging suitable for automated assembly processes. Ensure compatibility with 5V logic levels and power supplies before integration.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex operation is necessary alongside high node count requirements. Compare against slew-rate limited variants if EMI reduction at lower speeds is prioritized over maximum throughput. Verify that the package type matches the PCB footprint constraints and that the operating temperature range aligns with system specifications.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2857 family of RS485/RS422 transceivers designed for robust industrial communication. It complements half-duplex models like the LTC2856 and enables simultaneous transmission and reception. The MSOP-8 package provides a compact solution for space-constrained designs while maintaining high performance standards.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2857IMS8-1#PBF offers identical functionality in tube packaging instead of tape and reel. Other family members like LTC2856-1 provide half-duplex capabilities. Slew-rate limited versions such as LTC2857-2 are available for reduced EMI applications.