ADM485ARMZ-REEL7

Drivers, Receivers, Transceivers Overview

The ADM485ARMZ-REEL7 is a low-power EIA RS-485 transceiver manufactured by Analog Devices Inc. It operates from a single 5 V supply and supports data rates up to 5 Mbps. The device features a high-speed, low-power BiCMOS process with thermal shutdown and short-circuit protection. It provides a bus common-mode range of −7 V to +12 V. Key electrical parameters include a typical driver propagation delay of 10 ns and a receiver propagation delay of 15 ns. The part is housed in an 8-lead MSOP package and functions within an industrial temperature range of −40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Complies with EIA RS-485 standards for balanced data transmission on multipoint bus lines.
• Includes thermal shutdown circuitry that disables the driver if die temperature reaches 150°C.
• Features fail-safe receiver inputs that guarantee a logic high output state when inputs are unconnected.
• Maintains high-Z outputs when powered off or disabled to minimize bus loading effects.

Drivers, Receivers, Transceivers Applications

• Low power RS-485 systems
• DTE/DCE interface
• Packet switching
• Local area networks (LANs)
• Data concentration

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and compliance status. The REEL7 suffix indicates tape and reel packaging. Confirm the component meets RoHS requirements as indicated by the Z designation in the base model number. Cross-reference the datasheet revision to ensure all specifications align with current manufacturing standards before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring bidirectional data communication on multipoint buses with a 5 V supply. Ensure the design accommodates the specified common-mode voltage range of −7 V to +12 V. Consider the thermal shutdown threshold if fault conditions involving output shorting are possible. Verify that the 8-lead MSOP package footprint fits the available PCB space constraints.

Drivers, Receivers, Transceivers Part Context

This component belongs to the ADM485 series of differential line transceivers designed for RS-485 and RS-422 communications. It serves as a successor to older technologies like the LTC485, offering improved speed and lower power consumption. The series includes variants with different packages such as PDIP and SOIC, catering to various manufacturing and assembly requirements across industrial and commercial environments.

Drivers, Receivers, Transceivers Replacement Considerations

The ADM485ARZ is a direct pin-compatible alternative in an SOIC-8 package. Other ADM485 variants exist with different temperature ranges or packaging options. Verify electrical compatibility and physical dimensions before substituting. No other specific cross-model replacements are confirmed in the provided documentation.