ADM1485AR-REEL7

Overview

The ADM1485AR-REEL7 is a 5 V low power EIA RS-485 transceiver fabricated on high-speed, low power BiCMOS technology. It operates from a single 5 V supply and supports data rates up to 30 Mbps. The device features a driver propagation delay of 10 ns and a receiver propagation delay of 15 ns. It provides a bus common-mode range from -7 V to +12 V and includes thermal shutdown protection along with short-circuit protection for the driver outputs.

Feature Summary

• Complies with EIA RS-485 standards for balanced data transmission
• Features thermal shutdown circuitry to prevent excessive power dissipation during fault conditions
• Includes fail-safe receiver that guarantees a logic high output state when inputs are unconnected
• Maintains high impedance driver outputs when disabled or powered down to minimize bus loading

Applications

• Low Power RS-485 Systems
• DTE-DCE Interface
• Packet Switching
• Local Area Networks
• Data Concentration

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure the component matches the required industrial specifications and packaging format before integration into production designs.

Selection Notes

Select this component for applications requiring high-speed bidirectional communication on multipoint buses. Consider the extended common-mode voltage range and independent driver/receiver enable controls for robust network design.

Part Context

This part belongs to the ADM1485 series of differential line transceivers designed for high-speed data communication. It serves as a superior upgrade alternative to the LTC1485 model while maintaining compatibility with standard RS-485 and RS-422 interface requirements.

Replacement Considerations

The datasheet identifies the LTC1485 as a predecessor model. No other public substitute part numbers are documented in the provided source material.