The ISL59420 is a 420MHz bandwidth 2:1 multiplexing amplifier designed primarily for video switching. This Mux-amp has user-settable gain and also feature a high speed three-state function to enable the output of multiple devices to be wired together. All logic inputs have pull-downs to ground and may be left floating. The ENABLE pin, when pulled high, sets the ISL59420 to the low current power-down mode for power sensitive applications - consuming just 5mW.


  • 420MHz (-3dB) Bandwidth (AV = 1, VOUT = 400mVP-P)
  • 165MHz (-3dB) Bandwidth (AV = 2, VOUT = 2VP-P)
  • Slew Rate (AV = 1, RL = 500Ω, VOUT = 4V): 966V/µs
  • Slew Rate (AV = 2, RL = 500Ω, VOUT = 5V): 1462V/µs
  • Selectable Gain
  • High Speed Three-State Output (HIZ)
  • Low Current Power-Down: 5mW
  • 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 MSOP Tube 50
Active MSOP Reel 2500
Active MSOP Reel 1500

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL59420 Datasheet Datasheet PDF 831 KB
User Guides & Manuals
ISL5942xEVAL1 User Guide Manual PDF 324 KB
PCN12094 - Alternate Manufacturing Site for Assembly of the Listed Intersil Packaged Products - Amkor Technology, Philippines (ATP) Product Change Notice PDF 98 KB
PCN12084 - Manufacturing Site Change for the Listed Intersil Products - Carsem (CAS) Ipoh Malaysia Product Change Notice PDF 135 KB
PCN12055 - Data Sheet and Wafer Fabrication Site Change for Intersil Product ISL59420* - NXP Semiconductor Nijmegen, Netherlands Product Change Notice PDF 82 KB
PCN11059 - Shipping Tube Change for Intersil MSOP Packaged Products Product Change Notice PDF 117 KB
PIN19028 - Q3 Cy 19 Price Increase Notice Price Increase Notice PDF 208 KB
PA14042 - Minimum Line Quantity Change Product Advisory PDF 363 KB

Boards & Kits

Part Number Title Type Company
ISL59420EVAL1 400MHz Multiplexing Amplifier Evaluation Board Evaluation Renesas