HGSEMI MAX490EIM/TR

The MAX490E for RS-485/RS-422 communication is a high-speed full-duplex transceiver containing one driver and one receiver. It features ±15KV HBM ESD protection and a failsafe circuit that ensures a logic-high output when the receiver input is open or short-circuited. If all drivers connected to a terminated bus are disabled (high-impedance), the receiver will output a logic high. The MAX490E incorporates a slew-rate-limited driver to reduce EMI and reflections caused by improperly terminated cables, enabling error-free data transmission at up to 1Mbps. In addition, the MAX490E receiver features 1/8-unit-load input impedance, allowing up to 256 transceivers to be connected on the bus.

• Wide supply voltage range, full-duplex
• Industry-standard 8-pin SOP package
• Up to 256 transceivers on the bus
• True fail-safe receiver
• Compatible with EIA/TIA-485
• Robust slew rate control for error-free data transmission
• Enhanced ESD protection on RS-485/RS-422 A/B pins

• Industrial control
• Point-of-sale (POS)
• EMI-sensitive transceiver applications
• Security systems
• Power inverters
• Industrial networking