MAX3074EEPA+

MAX3074EEPA+ is a 3.3V, ±15kV ESD-protected, RS-485/RS-422 transceiver that features one driver and one receiver. This device includes fail-safe circuitry, guaranteeing a logic-high receiver output when receiver inputs are open or shorted. The receiver outputs a logic-high if all transmitters on a terminated bus are disabled (high impedance). This device includes a hot-swap capability to eliminate false transitions on the bus during power-up or hot insertion. This transceiver draws 800μA of supply current when unloaded, or when fully loaded with the drivers disabled. This device has a 1/8-unit load receiver input impedance, allowing up to 256 transceivers on the bus. Applications include lighting systems, industrial control, telecom, security systems, and instrumentation.

• ±15kV human body model ESD on I/O pins, hot-swap input structure on DE and active-low RE
• True fail-safe receiver while maintaining EIA/TIA-485 compatibility
• Enhanced slew-rate-limiting facilitates error free data transmission
• Allows up to 256 transceivers on the bus
• Input hysteresis is 100mV typical at (DE, DI, active-low RE, TXP, RXP, H/active-low F)
• Supply current is 0.8mA typical at (no load, active-low RE = 0, DE = VCC)
• Supply current in shutdown mode is 0.05µA typical at (active-low RE = VCC, DE = GND)
• SRL input current is 75µA maximum at (SRL = VCC, TA = +25°C)
• Receiver input resistance is 96Kohm minimum at (-7V ≤ VCM ≤ 12V)
• Operating temperature range from -40°C to +85°C, 8-lead plastic DIP package

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