The ADM1491EBRZ-REEL7 is a high-performance, half-duplex, iCoupler® integrated isolated RS-485 transceiver from Analog Devices Inc. that is designed to provide robust communication in demanding industrial environments. This device features integrated isolation to ensure signal integrity and protect against harmful ground loops and surges. It is ideal for applications requiring high-speed, bi-directional data communication over long distances or in noisy environments.

Key Features

• Integrated Isolation: With iCoupler technology, the ADM1491EBRZ-REEL7 provides galvanic isolation between the data line and the logic side, enhancing system reliability and safety.
• High Data Rates: Supports data rates up to 500 kbps, making it suitable for high-speed data acquisition and control applications.
• Half-Duplex RS-485 Interface: The half-duplex configuration allows for two-way communication on a single pair of wires, reducing cable costs and complexity.
• Thermal Shutdown Protection: The device includes thermal shutdown protection to prevent damage from overheating.
• ESD Protection: Offers robust electrostatic discharge (ESD) protection for the transceiver's bus pins, enhancing system resilience.
• Wide Supply Voltage Range: Operates over a wide supply voltage range of 3.0 V to 5.5 V, providing flexibility in various power environments.
• Fail-Safe Receiver: Ensures a logic high receiver output when the inputs are open, shorted, or idle, increasing fault tolerance.

Applications

The ADM1491EBRZ-REEL7 is suitable for a variety of industrial and commercial applications, including:

• Industrial field buses
• Building automation and HVAC control systems
• Networked sensors and actuators
• Remote data acquisition systems
• Automotive networks

Package and Quality

The device comes in a compact, surface-mount SOIC package, making it easy to integrate into PCB designs. It is provided in tape and reel form (REEL7), facilitating efficient assembly for high-volume production. Analog Devices Inc. ensures high manufacturing standards, providing reliable and consistent performance for the ADM1491EBRZ-REEL7 transceiver.