ADM1486ARZ-REEL

Overview

The ADM1486ARZ-REEL is a PROFIBUS-compatible, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. It operates on a single 5 V power supply and supports data rates up to 30 Mbps with a low quiescent current of 0.8 mA. The device features independent driver and receiver enable controls, high impedance outputs when disabled, and fail-safe receiver logic for open inputs. It includes thermal shutdown protection that activates at 150°C and short-circuit protection limiting output current to ±200 mA. Packaged in an 8-lead SOIC (R-8), it functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Complies with EIA RS-485 and RS-422 standards and is recommended for PROFIBUS applications.
• Features thermal shutdown circuitry that disables the driver if die temperature exceeds 150°C.
• Includes short-circuit protection to limit maximum output current during fault conditions.
• Provides high impedance driver outputs when disabled or powered down to minimize bus loading.

Applications

• Industrial field equipment
• Multipoint bus transmission lines
• PROFIBUS networks

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and lead-free status. The REEL designation indicates tape and reel packaging. Confirm availability through authorized distributors as stock levels fluctuate. Ensure the component meets RoHS requirements for your assembly process.

Selection Notes

Select this component for applications requiring high-speed bidirectional communication on multipoint buses. It is suitable where low power consumption and robust fault protection are necessary. Verify that the system voltage matches the specified 5 V supply and that the operating temperature falls within the industrial range.

Part Context

This part belongs to the ADM1486 series of differential line transceivers designed for balanced data transmission. It utilizes BiCMOS technology to combine low power CMOS with fast switching bipolar characteristics. The series is intended for reliable data transfer in noisy environments over twisted pair cables.

Replacement Considerations

The datasheet identifies the SN65ALS1176 as a predecessor device, noting the ADM1486 as a superior upgrade. No other direct substitute part numbers are explicitly listed in the provided documentation.