ADM1490EBRMZ-REEL7

Overview

The ADM1490EBRMZ-REEL7 is a full-duplex RS-485/RS-422 transceiver designed for high-speed communication in multipoint transmission lines. It operates from a single 5 V power supply and supports data rates up to 16 Mbps. The device features ±8 kV ESD protection on I/O pins, open circuit fail-safe functionality, and thermal shutdown protection. It complies with ANSI/TIA/EIA-485-A-1998 standards and allows up to 32 nodes on the bus due to its 12 kΩ receiver input impedance. The component is housed in an 8-lead MSOP package and functions within an operating temperature range of −40°C to +85°C.

Feature Summary

• Full-duplex RS-485/RS-422 interface capability for balanced transmission lines
• Integrated electrostatic discharge protection on differential input/output pins
• Fail-safe receiver design ensuring logic high output during floating input conditions
• Thermal shutdown mechanism preventing damage from excessive power dissipation

Applications

• High speed motor control applications
• Industrial field networks
• Multipoint data transmission systems
• Single-ended-to-differential signal conversion

Procurement Notes

Verify that the ordering suffix -REEL7 corresponds to the reel packaging format specified in the manufacturer's documentation. Confirm the package type matches the 8-lead Mini Small Outline Package (RM-8) requirements for the target PCB layout. Ensure the RoHS compliant status aligns with project specifications before finalizing procurement orders.

Selection Notes

Select this component when full-duplex communication at speeds up to 16 Mbps is required within a 5 V system. It is suitable for environments needing robust ESD protection and fail-safe operation. Consider the 8-lead MSOP package constraints regarding thermal resistance and board space availability compared to SOIC alternatives.

Part Context

This part belongs to the ADM1490E/ADM1491E series of high-speed transceivers manufactured by Analog Devices Inc. The ADM1490E variant specifically utilizes an 8-lead package configuration, distinguishing it from the 14-lead or 10-lead options available in the broader family. It shares core electrical characteristics with other members of the series while differing in pin count and physical footprint.

Replacement Considerations

The datasheet lists ADM1490EBRZ-REEL7 as a direct alternative with identical electrical specifications but utilizing an 8-Lead Standard Small Outline Package instead of the MSOP form factor.