Quad RS422/RS485 line driver — 20 Mbps, 3.3 V supply, 16-SOIC
The MAX3030ECSE+ from Analog Devices (formerly Maxim Integrated) is a quad RS422/RS485 line driver in a 16-SOIC package. It handles four differential outputs at data rates up to 20 Mbps, running from a 3 V to 3.6 V supply. This is a pure driver — no receivers on chip — so it fits designs where the transmit side needs four channels and the receive side is handled separately, common in industrial PLC backplanes, motor-drive encoder interfaces, and multi-drop sensor buses where the controller drives multiple remote nodes.
Package and temperature grade
The 16-SOIC body is 3.90 mm wide — the narrow SOIC footprint, not the wide-body version. Operating temperature is 0°C to 70°C, which covers commercial and most indoor industrial environments.