RS485 link budget at 115 Kbps
The MAX3082EESA+ is a half-duplex RS422/RS485 transceiver rated for 115 Kbps data rate over a single differential pair. One driver and one receiver share the bus lines, so the protocol layer must manage direction control — typically via an RTS line or a GPIO toggling the driver enable. The 100 mV receiver hysteresis filters noise on long cable runs — a common pain point when the bus spans more than a few metres in a motor-drive cabinet. Operating temperature covers -40°C to +85°C, so the part handles unheated enclosures and cabinet ambient near the upper industrial limit without derating.
The narrow SOIC footprint is a common pinout for single RS485 transceivers — the same land pattern serves many pin-compatible alternatives, which simplifies BOM hedging. Supplied in tube format. For reel or tape-and-reel quantities, confirm the packing option with the distributor at RFQ time.
Compliance and lifecycle
The category trail places this under DC-DC Power Modules, though the device itself is a transceiver IC. The mismatch likely reflects a cataloguing quirk — the part is a standard RS485 interface, not a power module. Verify the BOM line function before committing the order code.