Maxim MAX22500E, MAX22501E and MAX22502E RS-485 transceivers

Monday, 04 December, 2017 | Supplied by: Avnet Electronics Marketing


With motion control systems requiring more accuracy over longer distances, system designers are challenged to maintain faster data rates and achieve robust communications with longer cables. A production site, for example, may not efficiently function with a slow data rate and short cables as it must transfer accurate information quickly and over a long distance.

The MAX22500E/MAX22501E (half-duplex) and MAX22502E (full-duplex) ESD-protected RS-485/RS-422 transceivers, from Maxim Integrated Products, extend the reach of communication up to 100 Mbps over 50 m. This provides fast data rates for robust communication across long cables for a variety of motion control applications.

The settable pre-emphasis feature within the MAX22500E and MAX22502E enables 2x faster data rates compared to competitor solutions, according to the company, for increased encoder resolution and reduced latency. Pre-emphasis extends cables up to 50% longer to communicate over longer distances. A large receiver hysteresis (250 mV) provides good robustness against EFT. The transceivers operate over a temperature range from -40 to +125°C.

Other features include: a flexible low-voltage logic supply interface down to 1.6 V; good signal integrity; and a small footprint, with 8-, 10- and 12-pin TDFN packages.

Online: www.em.avnetasia.com
Phone: 02 9585 5511
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