MAX3462CSA+

MAX3462CSA+ is a high-speed differential bus transceiver for RS-485 and RS-422 communications. This is designed to meet TIA/EIA-422-B, TIA/EIA-485-A, V.11, and X.27 standards. The part contains one three-state differential line driver and one differential input line receiver. The device operates from a +5V supply and features true fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This enables all receiver outputs on a terminated bus to output logic highs when all transmitters are disabled. The device features a 1/4 standard unit load receiver input impedance that allows 128 transceivers on the bus. Driver and receiver propagation delays are guaranteed under 20ns for multidrop, clock distribution applications. Applications include high-speed RS-485 communications, high-speed RS-422 communications, level translators, industrial-control local area networks, profibus applications.

• Designed for multipoint transmissions on long or noisy bus lines
• Current-limiting and thermal shutdown for driver overload protection
• Full duplex communication
• Power-supply range from 4.75 to 5.25V
• Differential driver output is 2.1V min at R=27ohm, VCC=+5V ±5%, TA=TMIN to TMAX
• Driver short-circuit output current is +250mA max at 0 ≤ VOUT ≤ 12V, output low
• Receiver differential threshold voltage is -125mV typ at -7V ≤ VCM ≤ 12V
• Driver propagation delay is 20ns max at RDIFF=54ohm, CL=50pF
• 8 SO package
• Temperature range from 0°C to +70°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party