The EL4340, EL4342 are fixed unity gain mux amps featuring high slew rates and excellent bandwidth for video switching. These devices feature a high impedance output state (HIZ) that enables the outputs of multiple devices to be wired together. A power-down mode (ENABLE) is included to turn off un-needed circuitry in power sensitive applications. The ENABLE pin, when pulled high, sets the EL4340, EL4342 into standby power mode - consuming just 18mW. An added feature in the EL4340 is a latch enable function (LE) that allows independent logic control using a common logic bus.


  • Triple 2:1 and 4:1 multiplexers for RGB
  • Internally set gain-of-1
  • High-Speed three-state outputs (HIZ)
  • Power-down mode (ENABLE)
  • Latch enable (EL4340)
  • ±5V operation
  • ±870 V/µs slew rate
  • 500MHz bandwidth
  • Typical supply currents 10mA/ch (EL4340) and 15.3mA/ch (EL4342)
  • Pb-free (RoHS compliant)


  • HDTV/DTV analog inputs
  • Video projectors
  • Computer monitors
  • Set-top boxes
  • Security video
  • Broadcast video equipment

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active QFN Tube 60
Active QFN Reel 2500
Active QFN Reel 1000

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
EL4340, EL4342 Datasheet Datasheet PDF 989 KB
User Guides & Manuals
ISL59445/EL4342E1 User Guide Manual PDF 368 KB
Application Notes & White Papers
AN1249: Using the EL4342 and ISL59446 Triple Video MUX-Amps as A/V Source Selectors Application Note PDF 246 KB
PCN12084 - Manufacturing Site Change for the Listed Intersil Products - Carsem (CAS) Ipoh Malaysia Product Change Notice PDF 135 KB
PIN19028 - Q3 Cy 19 Price Increase Notice Price Increase Notice PDF 208 KB