MAX9389EHJ+

Overview

The MAX9389EHJ+ is a fully differential, high-speed, low-jitter 8-to-1 ECL/PECL multiplexer with dual output buffers. It operates within a supply voltage range of 2.375V to 5.5V and features a typical propagation delay of 310ps and maximum output-to-output skew of 30ps. The device supports a guaranteed operating frequency of 2.7GHz and includes internal biasing for open inputs. It is housed in a 32-pin TQFP package and functions over an extended temperature range from -40°C to +85°C.

Feature Summary

• Fully differential architecture designed for clock and data distribution applications
• Internal pulldowns ensure low default state when select inputs are left open
• Integrated reference outputs facilitate single-ended input configuration
• High electrostatic discharge protection capability

Applications

• Central-office backplane clock distribution
• DSLAM/DLC systems
• High-speed telecom and datacom applications

Procurement Notes

Verify the specific suffix EHJ corresponds to the 32-pin TQFP package variant. Confirm that the component meets RoHS compliance requirements as indicated in official documentation. Ensure the ordering information matches the exact part number to avoid discrepancies in package type or temperature rating.

Selection Notes

Select this component for designs requiring low jitter and high-speed signal routing. Verify that the system power supply falls within the 2.375V to 5.5V range. Ensure PCB layout maintains differential trace impedance to minimize signal reflections and skew during operation.

Part Context

This device belongs to the MAX9389 series of analog crosspoint switches and multiplexers manufactured by Analog Devices Inc./Maxim Integrated. It is categorized under communication and networking ICs, specifically designed for high-performance signal switching and distribution tasks in demanding electronic environments.

Replacement Considerations

No public confirmed substitute part numbers are available.