MAX1487ESA+T-JSM

The MAX1487ESA for RS-485/RS-422 communication is a high-speed half-duplex transceiver containing one driver and one receiver. It features ±15kV human body model ESD protection and a failsafe circuit that ensures a logic-high output at the receiver when the receiver input is open or shorted. If all drivers connected to a terminated bus are disabled (high impedance), the receiver will output a logic high. The MAX1487ESA incorporates a slew-rate-limited driver to reduce EMI and reflections caused by improperly terminated cables, enabling error-free data transmission at up to 2Mbps. In addition, the MAX1487ESA receiver features 1/8 unit load input impedance, allowing up to 256 transceivers to be connected on a single bus, and operates over a temperature range of -40°C to 85°C.

Applications

• Industrial control
• Electric, water, and gas meters
• EMI-sensitive transceiver applications
• Security systems
• Lighting systems
• Instrumentation

Key features

• Low-current shutdown mode
• Industry-standard SOP-8 package
• Up to 256 transceivers on the bus
• True fail-safe receiver
• EIA/TIA-485 compatible
• Robust slew rate control for error-free data transmission
• Enhanced ESD protection for RS-485/RS-422 A/B pins
• HBM: ±15kV
• IEC61000-4-2: Contact discharge ±12kV, air discharge ±15kV