Transceivers Extend Data Rates And Cable Length

The MAX22500E, MAX22501E, and MAX22502E RS-485 transceivers from Maxim Integrated Products achieve 2x faster data rates and extend cable length by up to 50%. 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 extend the reach of communication up to 100 Mbps over 50m. The settable pre-emphasis feature within the MAX22500E and MAX22502E enables 2x faster data rates compared to competitive solutions for increased encoder resolution and reduced latency. Pre-emphasis extends cables up to 50% longer to communicate over longer distances. A large receiver hysteresis (250mV) provides superior robustness to EFT. 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°C to +125° temperature range.

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Availability and Pricing

•The MAX22500E is available in a 10-pin TDFN (3mm x 3mm) package for $3.51 (1000-up, FOB USA) at Maxim's website and select authorized distributors

•The MAX22501E is available in an 8-pin TDFN (3mm x 3mm) package for $1.79 (1000-up, FOB USA) at Maxim's website and select authorized distributors

•The MAX22502E is available in a 12-pin TDFN (3mm x 3mm) package for $3.94 (1000-up, FOB USA) at Maxim's website and select authorized distributors

•The MAX22500EEVKIT#, MAX22501EEVKIT#, and MAX22502EEVKIT# evaluation kits are each available for $95

 

Of course, more details and spec are available via datasheets for the MAX22500E, MAX22501E, and MAX22502E.

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