GM3085E

GM3085E is a high-speed transceiver with ±15kV ESD protection for RS-485/RS-422 communications, integrating one driver and one receiver. The device features a fail-safe circuit that guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means that if all transmitters connected to the bus are disabled (high-impedance state), the receiver output will be logic high. The GM3085E incorporates a slew-rate-limited driver to minimize EMI and reduce signal reflections caused by improper cable termination, enabling error-free data transmission at up to 1Mbps. In addition, the GM3085E receiver features 1/8 unit load input impedance, allowing up to 256 transceivers to be connected in parallel on the bus.

Applications

• Industrial Control
• Electric, Water & Gas Meters
• EMI-Sensitive Transceiver Applications
• Security Systems
• Lighting Systems
• Instrumentation

Key features

• Low-current shutdown mode
• Industry-standard SOP8 package
• Supports up to 256 transceivers on the bus
• True fail-safe receiver while maintaining EIA/TIA-485 compatibility
• Enhanced slew rate limiting for error-free data transmission
• Enhanced ESD protection on RS-485/RS-422 A/B pins