ADM3082

www.DataSheet4U.com PRELIMINARY TECHNICAL DATA a Low-Current (1nA) Shutdown Mode High-Speed (10Mbps), Fail-Safe, RS-485/RS-422 Transceivers with Slew-Rate-Limiting and ±15kV ESD Protection ADM3082/ADM3085/ADM3088 GENERAL DESCRIPTION FEATURES Enhanced Slew Rate Limiting for Error-Free Data Transmission Fail-Safe Receiver Operation while Maintaining EIA/TIA-485 compatibility High Input Impedance — Up to 256 Transceivers on Bus ±15kV ESD Protection (Human Body Model) on RS-485 I/O pins Pin-Compatible with Industry Standard 75176 APPLICATIONS Enhanced Replacement for Industry-Standard Parts EMI-Sensitive Systems Level Translation LANs for Industrial Control Applications The ADM3082/ADM3085/ADM3088 are high-speed RS-485/RS-422 transceivers consisting of one driver and one receiver per package. The devices feature fail-safe operation, ensuring a logic-high receiver output when the receiver inputs are open-circuit or short-circuit. This guarantees that the receiver output will be high if all the transmitters on a terminated bus are disabled (high-impedance). The ADM3082 has a slew-rate limited driver to minimize electromagnetic interference (EMI) and reduce reflections caused by incorrectly terminated cables. This allows errorfree transmission at data rates up to 115kbps. The ADM3085 offers a higher slew rate allowing data rates up to 500kbps, while the ADM3088 has a driver whose slew rate is not limited, allowing data rates up to 10Mbps. All devices in the family feature ±15kV...