LTC2851MPMS8#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2851MPMS8#TRPBF is a full-duplex RS-485/RS-422 transceiver operating on a 3V to 3.6V supply with a maximum data rate of 20Mbps. It features one-eighth unit load receiver input resistance exceeding 96kΩ, supporting up to 256 nodes per bus. The device includes failsafe logic ensuring a high output state during floating or shorted inputs. Driver outputs are current-limited and protected by thermal shutdown. Enhanced ESD protection withstands ±15kV human body model stress without latchup. The part operates within a military temperature range of -55°C to 125°C and is housed in an 8-lead MSOP package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex operation with independent driver and receiver channels
• High input impedance receiver supports extensive multinode networks
• Integrated failsafe mechanism guarantees safe idle states
• Robust protection against overcurrent, thermal overload, and electrostatic discharge

Drivers, Receivers, Transceivers Applications

• Multinode industrial communication buses
• Backplane data transmission systems
• Level translation between different voltage domains

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific MP suffix indicates the military temperature grade (-55°C to 125°C) rather than commercial or industrial variants. Confirm the TRPBF designation corresponds to tape and reel packaging with lead-free composition. Ensure compatibility with the required 8-lead MSOP footprint during component sourcing.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring simultaneous bidirectional data transfer at speeds up to 20Mbps. The high input impedance allows for dense node configurations compared to standard unit load devices. Verify that the system power supply remains within the 3V to 3.6V range to maintain specified electrical characteristics and timing parameters.

Drivers, Receivers, Transceivers Part Context

This device belongs to the LTC285x family of low-power transceivers designed for 3.3V operation. Unlike the half-duplex LTC2850, the LTC2851 provides separate transmit and receive paths. The MP variant extends the operational temperature range beyond standard industrial limits, making it suitable for harsh environments where reliability under extreme thermal conditions is critical.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2851HMS8#TRPBF offers identical functionality but with an automotive temperature range (-40°C to 125°C). LTC2851IS8#TRPBF provides industrial range (-40°C to 85°C). Substituting these requires verifying that the ambient operating temperatures do not exceed their respective lower limits.