RS422/RS485 transceiver, full duplex at 20 Mbps
The LTC2858HDD-1#PBF: Full-duplex means separate transmit and receive pairs, so the bus can talk and listen simultaneously — critical for applications like motor-drive feedback or PLC-to-remote-I/O links where a half-duplex turnaround delay would eat into the cycle time.
Temperature range and supply tolerance
The 25 mV receiver hysteresis cleans up slow edges on long cable runs — without it, noise on a 100-meter RS485 trunk would toggle the receiver on every reflection.
The tube packaging is the standard delivery form for prototype and low-volume builds; reel options may be available through distribution.
Second-source consideration: ADM3067EBRZ
The ADM3067EBRZ is a full-duplex RS485 transceiver from the same family, but it runs on a 3.0 V supply and pushes 50 Mbps — faster but at a lower voltage rail. The LTC2858HDD-1#PBF stays at 5 V, so swapping without adjusting the supply would overstress the 3 V part or under-drive the 5 V bus. The footprint is different too (10-DFN vs. 8-SOIC), so a board spin is required.