EL4543IU-T7

Overview

The EL4543IU-T7 is a high-speed differential twisted-pair line driver manufactured by Renesas Electronics. It integrates three independent channels within a single package, designed for robust signal transmission over balanced lines. The device operates on a supply voltage ranging from 5 V to 12 V and draws a typical operating current of 16.2 mA. Key electrical specifications include a gain bandwidth product of 700 MHz and a slew rate of 1000 V/µs. It features a fixed voltage gain of 2 V/V, an input bias current of -10 µA, and an input offset voltage of 10 mV. Power supply rejection ratio is rated at 70 dB, with a common-mode rejection ratio of 80 dB. Each channel provides an output current capability of 50 mA. The component supports operation across an extended temperature range from -40 °C to +85 °C.

Feature Summary

• Provides three independent differential amplifier channels for simultaneous multi-line signal driving.
• Delivers high-speed performance with a 700 MHz gain-bandwidth product and 1000 V/µs slew rate.
• Offers strong noise immunity through high power supply and common-mode rejection ratios.
• Supports direct connection to twisted-pair transmission lines with a fixed gain of 2 V/V.

Applications

• High-speed data communication systems requiring differential signaling
• Industrial control networks utilizing twisted-pair cabling
• Video distribution equipment handling differential video signals
• Test and measurement instruments needing precise differential amplification

Procurement Notes

Verify the exact suffix against official Renesas documentation, as variations exist between ILZ and IUZ packages. Confirm availability status, as this specific part number may be discontinued or subject to limited production runs. Check for moisture sensitivity levels and recommended reflow profiles if surface-mount assembly is planned. Ensure the supplier provides valid traceability documents for quality assurance purposes.

Selection Notes

Select this component when multiple differential channels are required in a compact form factor. Compare the 700 MHz bandwidth against lower-speed alternatives if signal integrity at higher frequencies is critical. Consider the 50 mA output drive capability for long cable runs. Evaluate the -10 µA input bias current requirements against source impedance limitations to minimize offset errors in precision applications.

Part Context

This device belongs to the EL4543 series of differential line drivers from Renesas (formerly Intersil). The series is characterized by high-speed operation suitable for demanding analog signal processing tasks. The 'IU' designation typically indicates a specific plastic package variant, while the '-T7' suffix denotes tape-and-reel packaging for automated assembly processes.

Replacement Considerations

Consult official Renesas obsolescence notices for qualified substitute part numbers. Verify pin compatibility and electrical parameter equivalence before substitution. Cross-reference with other members of the EL4543 family that may offer updated packaging or enhanced specifications.