EL4543IU

Overview

The EL4543IU is a high-speed differential line driver manufactured by Renesas Electronics. It integrates three independent channels within a single package, designed for twisted-pair transmission applications. The device operates with a gain of 2 V/V and features a gain-bandwidth product of 700 MHz. It supports supply voltages between 5 V and 12 V, drawing a typical operating current of 16.2 mA. Key electrical specifications include an input bias current of 10 uA, an input offset voltage of 10 mV, and a power supply rejection ratio of 70 dB. The component is housed in a 24-pin QSOP package.

Feature Summary

• Integrates three independent differential amplifier channels for multi-line signal processing
• Provides high-speed performance suitable for twisted-pair transmission interfaces
• Features low input bias current and offset voltage for signal integrity

Applications

• High-speed serial communication interface drivers
• Twisted-pair data transmission systems
• Industrial automation control networks

Procurement Notes

Verify the specific suffix (e.g., ILZ vs IUZ) as it indicates distinct package types and potentially different electrical characteristics such as bandwidth. Confirm availability status, as this series may be subject to discontinuation notices. Ensure the selected variant matches the required thermal management and moisture sensitivity levels for the intended manufacturing process.

Selection Notes

Select based on the required channel count and bandwidth; the standard EL4543 offers 700 MHz GBP while the ILZ variant provides 350 MHz. Verify package compatibility, choosing between the standard QSOP or leadless variants depending on board space constraints. Check supply voltage requirements against the 5 V to 12 V operational range and ensure the load current capability meets the transmission line demands.

Part Context

This component belongs to the EL4543 family of differential amplifiers from Renesas Electronics. These devices are engineered for robust performance in noisy environments, utilizing differential signaling to reject common-mode noise. The family includes variations tailored for different speed and packaging needs, serving as critical interface components in digital communication hardware.

Replacement Considerations

Public confirmed substitute part numbers were not identified in the provided documentation.