MAX3485

Click here for production status of specific part numbers. MAX3483/MAX3485/ MAX3486/MAX3488/ MAX3490/MAX3491 3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers General Description The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486 transmits up to 2.5Mbps. The MAX3485, MAX3490, and MAX3491 transmit at up to 10Mbps. Drivers are short-circuit current-limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if both inputs are open circuit. The MAX3488, MAX3490, and MAX3491 feature fullduplex communication, while the MAX3483, MAX3485, and MAX3486 are designed for half-duplex communication. Applications ●● Low-Power RS-485/RS-422 Transceivers ●● Telecommunications ●● Transceivers for EMI-Sensitive Applications ●● Industrial-Control Local Area Networks Selection Table PART NUMBER MAX3483 MAX3485 MAX3486 MAX3488 MAX3490 MAX3491 GUARANTEED DATA RATE (Mbps) 0.25 10 2.5 0.25 10 10 SUPPLY VOLTAGE (V) 3.0 to 3.6 HALF/FU...