MAX3082ESA-TUDI

The MAX3082 high-speed transceiver is designed for RS-485/RS-422 communications, incorporating one driver and one receiver. The device guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means that if all drivers on a properly terminated bus are disabled (high-impedance), the receiver output will be logic high. The MAX3082 features a reduced driver slew rate to minimize EMI and reduce signal reflections caused by improperly terminated cables, enabling error-free data transmission at rates up to 15kbps. These transceivers typically consume low quiescent current when idle or when the driver is disabled. All devices feature 1/8-unit-load receiver input impedance, allowing up to 256 transceivers to be connected on the bus. The MAX3082 is suited for half-duplex communications.

Applications

• RS-422/RS-485 communication
• Level translators
• Transceivers for EMI-sensitive applications
• Industrial control LAN

Key features

• Single supply: 4.5V to 5.5V
• Receiver fail-safe for open, shorted, or terminated bus
• 1/8 unit load, up to 256 transceivers on bus
• Robust ESD protection on RS-485 pins: ±15kV air discharge, ±15kV HBM, ±8kV contact discharge
• Controlled driver slew rate
• Hot-plug disturbance protection on control pins
• Driver thermal shutdown, short-circuit current limiting, and overload protection