LTC2851IS8#PBF

Drivers, Receivers, Transceivers Overview

The LTC2851IS8#PBF is a full-duplex RS-422/RS-485 transceiver manufactured by Analog Devices Inc. It operates on a single 3V to 3.6V supply and supports data rates up to 20Mbps. The device features a one-eighth unit load receiver input resistance exceeding 96kΩ, enabling support for up to 256 nodes per bus in C-grade and I-grade variants. It includes enhanced ESD protection rated at ±15kV (HBM), current-limited drivers, thermal shutdown, and guaranteed failsafe operation ensuring a high output state during floating or shorted inputs.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex architecture with independent driver and receiver channels
• High input impedance supporting up to 256 nodes per bus
• Integrated failsafe logic guarantees high output during idle or fault conditions
• Robust protection against overcurrent, thermal overload, and electrostatic discharge

Drivers, Receivers, Transceivers Applications

• Low power RS-485/RS-422 network transceivers
• Level translation between different voltage domains
• Backplane communication interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and standard tube packaging. Confirm the IS8 designation matches the required industrial temperature range (-40°C to +85°C) and SOIC-8 package dimensions. Ensure the ordering information aligns with the manufacturer's current product selection guide to avoid obsolete lot codes.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex communication is required alongside low static power consumption. The I-grade temperature rating suits general industrial environments. Compare against half-duplex alternatives like the LTC2850 if bidirectional single-wire transmission is sufficient, or consider the LTC2852 if explicit enable pins are needed for complex bus arbitration.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC285x family of 3.3V transceivers designed for robust serial communication. Unlike the half-duplex LTC2850, the LTC2851 provides simultaneous transmit and receive paths. It shares core electrical characteristics with the LTC2852 but omits the separate enable control pins found on that variant.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2851MPMS8#TRPBF: Identical functional specifications with military temperature grade (-55°C to 125°C) and tape-and-reel packaging.