Quad RS-422/RS-485 receiver — 10 Mbps, 45 mV hysteresis
The Maxim Integrated MAX3093ECSE+ is a quad RS-422/RS-485 receiver in a 16-SOIC surface-mount package. It handles four differential inputs and presents a single-ended TTL/CMOS-compatible output per channel. The 10 Mbps data rate covers most industrial fieldbus and motion-control links, while the 45 mV of built-in receiver hysteresis improves noise immunity on long cable runs without external biasing components. Supply range is 4.75 V to 5.25 V, making it a drop-in for 5 V RS-485 buses in PLCs, building automation panels, and serial backplanes.
0°C to 70°C — commercial-grade only
The operating temperature range is 0°C to 70°C, which limits this part to indoor or controlled environments — think office equipment, lab instrumentation, or climate-controlled factory racks. For extended-temperature designs (industrial or automotive), you would look at the industrial-temperature variants in the MAX3093 family.
Active lifecycle, ROHS3 compliant
The MAX3093ECSE+ carries an Active product status and is ROHS3 compliant. The laser etch on the package should trace cleanly to Maxim (now Analog Devices) authorized-channel date codes — the + suffix marks the lead-free, ROHS-compliant version.