Overview

The EL4543 is a high bandwidth triple differential amplifier with integrated encoding of video sync signals. The inputs are suitable for handling High-Speed video or other communications signals in either single-ended or differential form, and the common-mode input range extends all the way to the negative rail enabling ground-referenced signaling in single supply applications. The high bandwidth enables differential signaling onto standard twisted-pair or coax with very low harmonic distortion, while internal feedback ensures balanced gain and phase at the outputs reducing radiated EMI and harmonics. Embedded logic encodes standard video horizontal and vertical sync signals onto the common mode of the twisted pair(s), transmitting this additional information without the requirement for additional buffers or transmission lines. The EL4543 enables significant system cost savings when compared with discrete line driver alternatives. The EL4543 is available in both a 24 Ld QSOP package and a 20 Ld QFN package and is specified for operation over the -40°C to +85°C temperature range.

EL4543 Functional Diagram
EL4543 Functional Diagram
  • Fully differential inputs, outputs, and feedback
  • 350MHz -3dB bandwidth
  • 1200V/µs slew rate
  • -75dB distortion at 5MHz
  • Single 5V to 12V operation
  • 50mA minimum output current
  • Low power - 36mA total typical supply current
  • Pb-free available (RoHS compliant)

Applications

  • Twisted-pair drivers
  • Differential line drivers
  • VGA over twisted-pair
  • Transmission of analog signals in a noisy environment

Documentation

Design & Development

Software Downloads
Type Title Date
PCB Design Files
EL4543 Reference Design
PDF 191 KB
1 item

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    EL4543IUZ
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    		QSOP Tube 2 Get Samples,
    EL4543IUZ-T13
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    		QSOP Reel 2
    EL4543IUZ-T7
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    		QSOP Reel 2 Get Samples,
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