LTC2857HMS8-1#PBF

Drivers, Receivers, Transceivers Overview

The LTC2857HMS8-1#PBF is a low-power, full-duplex RS-485/RS-422 transceiver operating on a single 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 in C and I grades. Enhanced ESD protection withstands ±15kV (human body model) without latchup. The device includes current-limited drivers and thermal shutdown to prevent excessive power dissipation during faults.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex operation with independent driver and receiver channels
• High input impedance receiver supporting up to 256 nodes per bus
• Enhanced ESD protection rated at ±15kV HBM on interface pins
• Integrated thermal shutdown and current limiting for fault protection

Drivers, Receivers, Transceivers Applications

• Low power RS485/RS422 transceivers
• Level translator circuits
• Backplane transceiver systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free packaging when sourcing this component. Confirm the MSOP-8 package type matches your PCB footprint requirements. Ensure the H-grade temperature range (-40°C to 125°C) aligns with your operational environment specifications before finalizing procurement.

Drivers, Receivers, Transceivers Selection Notes

Select the LTC2857HMS8-1#PBF for applications requiring full-duplex communication at speeds up to 20Mbps. Choose this part over half-duplex variants if simultaneous transmit and receive capabilities are necessary. Consider the 250kbps variant if strict EMI reduction is required while maintaining the same package and pinout compatibility.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2857 family of low-power RS-485/RS-422 transceivers. It shares functional similarities with the LTC2856 and LTC2858 series but is distinct in its full-duplex configuration without enable pins. The H-grade designation specifies an extended industrial temperature range compared to commercial or standard industrial grades.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2857IMS8-1#PBF offers the same electrical performance in an industrial temperature grade (-40°C to 85°C). Verify that the reduced maximum operating temperature meets your system requirements before substituting.