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Transceivers Allow 100Mbps Communication Over Long Distance

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To help industrial designers address the challenge of transferring accurate information quickly and over a long distance, Maxim has announced new RS-485 transceivers optimised for up to 100Mbps high-speed communication over long cables.

The MAX22500E, MAX22501E, and MAX22502E RS-485 transceivers claim to achieve 2x faster data rates and extend cable length by up to 50% for a variety of motion control applications.

The MAX22500E/MAX22501E (half-duplex) and MAX22502E (full-duplex) are ESD-protected RS-485/RS-422 transceivers that can extend the reach of communication up to 100Mbps over 50m.

“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”, Maxim stated in the Press release.

The settable pre-emphasis feature within the MAX22500E and MAX22502E extends cables up to 50% longer to communicate over longer distances. A large receiver hysteresis (250mV) provides superior robustness to EFT, claims Maxim.

In addition, by improving the signal integrity and robustness, system designers can achieve the same level of performance with lower-cost cables.

The transceivers operate over the -40-degree Celsius to +125- degree Celsius temperature range.

The products are available in small 8-, 10-, and 12-pin TDFN packages

  • The MAX22500E is available in a 10-pin TDFN (3mm x 3mm) package for $3.51 (1000-up, FOB USA).
  • The MAX22501E is available in an 8-pin TDFN (3mm x 3mm) package for $1.79 (1000-up, FOB USA).
  • The MAX22502E is available in a 12-pin TDFN (3mm x 3mm) package for $3.94 (1000-up, FOB USA).
  • The MAX22500EEVKIT#, MAX22501EEVKIT#, and MAX22502EEVKIT# evaluation kits are each available for $95.
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