The IC component MAX487CPA+ is a low-power, half-duplex RS-485/RS-422 transceiver designed for noise-sensitive applications. It is manufactured by Maxim Integrated, a leading provider of analog and mixed-signal integrated circuits.
The MAX487CPA+ supports data rates up to 2.5 Mbps, making it suitable for high-speed communication in industrial, automotive, and building automation systems. It operates from a single 5V power supply, consuming a very low operational current of just 300µA. This low power consumption makes it an excellent choice for applications where power efficiency is crucial.
One of the notable features of the MAX487CPA+ is its robustness against electrical noise and transients. It incorporates a slew-rate-limited driver that reduces electromagnetic interference (EMI) and minimizes reflections from improperly terminated cables. Additionally, it provides short-circuit protection, thermal shutdown, and glitch-free power-up/down to safeguard the device from potential faults or damaging events.
The IC has a wide common-mode voltage range of -7V to +12V, which enables it to operate in harsh industrial environments with significant ground potential differences. It also offers high-impedance receiver inputs that allow up to 256 transceivers to be connected on the bus without loading issues
