MAX1480AEPI+

MAX1480AEPI+ is a complete, electrically isolated, RS-485/ RS-422 data-communications interface in a hybrid microcircuit. MAX1480A driver slew rate is not limited, allowing transmission rates up to 2.5Mbps. It designed for half-duplex communication. Drivers are short-circuit current limited and 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 known output (active-low RO low for the MAX1480A) if the input is open circuit. It is used in applications such as isolated RS-485/RS-422 data interface, transceivers for EMI-sensitive applications, industrial-control local area networks, automatic test equipment, HVAC/building control networks.

• Half duplex, 2.5Mbps data rate, 0.2µs driver enable time
• Switch frequency is 535KHz typical at (VCC- = 5V ±10%, VFS = 0V)
• Operating supply current is 60mA typical at (VCC- = 5V ±10%, VFS = VCC)
• Shutdown supply current is 0.2µA typical at (VCC- = 5V ±10%, VFS = VCC)
• Isolation capacitance is 10pF typical at (TA = +25°C, VISO = 50VDC)
• Driver rise or fall time is 15ns typical at (RDIFF = 54 ohm, CL1 = CL2 = 100pF)
• FS input leakage current is 10pA typical at (VCC- = 5V ±10%, VFS = VCC)
• Receiver input resistance is 48Kohm minimum at (-7V ≤ VCM ≤ 12V)
• Driver output skew is 25ns typical at (VCC- = 5V ±10%, FS = VCC)
• Operating temperature range from -40°C to +85°C, 28-pin wide plastic DIP package

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