RS485/RS422 transceiver, 115 kbps, full duplex
The MAX3081ECPA+ from Analog Devices is an RS485/RS422 transceiver with full-duplex communication and a data rate of 115 kbps — the rate is set by the slew-limited driver, which minimizes EMI and reflections on long cable runs typical of industrial fieldbus links.
Supply range and receiver noise margin
Receiver hysteresis of 100 mV provides noise immunity on the differential bus — in a motor-drive environment where common-mode noise couples into the twisted pair, that hysteresis prevents the receiver from chattering on the rising edge of a PWM transient.
Temperature grade and environment
Rated for commercial temperature range (0°C to 70°C) — this restricts deployment to indoor, temperature-controlled environments such as PLC cabinets, test equipment, and building automation panels. Not suitable for extended industrial or outdoor use without climate control.