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ADA4304-4:  1:4 Single-Ended, Low Cost, Active RF Splitters

Product Details

The ADA4304-3/ADA4304-4 are 75 Ω active splitters for use in applications where a lossless signal split is required. Typical applications include multituner digital set-top boxes, cable splitter modules, multituners/digital cable ready (DCR) televisions, and home gateways where traditional solutions require discrete passive splitter modules with separate fixed gain amplifiers.

The ADA4304-3/ADA4304-4 are fabricated using the Analog Devices, Inc., proprietary silicon germanium (SiGe), complementary bipolar process, enabling them to achieve very low levels of distortion with a noise figure of 4.6 dB. The parts provide low cost alternatives that simplify designs and improve system performance by integrating a signal splitter element and a gain block into a single IC. The ADA4304-3/ADA4304-4 are available in a 16-lead LFCSP and operate in the extended industrial temperature range of −40°C to +85°C.


  • Set-top boxes
  • Residential gateways
  • CATV distribution systems
  • Splitter modules
  • Digital cable ready (DCR) TVs
  • Data Sheet, Rev. 0, 11/07


    • Ideal for CATV and terrestrial applications
    • 2.4 GHz, −3 dB bandwidth
      1 dB flatness: 54 MHz to 865 MHz
    • Low noise figure: 4.6 dB
    • Low distortion
      Composite second-order (CSO): −62 dBc
      Composite triple beat (CTB): −72 dBc
    • Nominal 3 dB gain per output channel
    • 25 dB output-to-output isolation, 50 MHz to 1000 MHz
    • 75 Ω input and outputs
    • Small package size: 16-lead, 3 mm × 3 mm LFCSP

    Functional Block Diagram for ADA4304-4


    Title Content Type File Type
    ADA4304-3/ADA4304-4: 1:3 and 1:4 Single-Ended, Low Cost, Active RF Splitters Data Sheet (Rev 0, 11/2007) (pdf, 431 kB) Data Sheets PDF
    RF Source Booklet  (PDF, 4353 kB)
    RF IC Product Overview - Version P (02/2014)
    Overview PDF
    RAQs index Rarely Asked Questions HTML
    Glossary of EE Terms Glossary HTML

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    Price, packaging, availability

    ADA4304-4 Model Options
    Model Package Pins Temp.
    Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
    ADA4304-4ACPZ-R2 Status: Production 16 ld LFCSP (3x3mm, 1.3mm exposed pad) 16 Ind Reel, 250 $3.23 $3.23 Y  Material Info PCN Purchase
    ADA4304-4ACPZ-R7 Status: Production 16 ld LFCSP (3x3mm, 1.3mm exposed pad) 16 Ind Reel, 1500 - $1.61 Y  Material Info PCN Purchase Sample
    ADA4304-4ACPZ-RL Status: Production 16 ld LFCSP (3x3mm, 1.3mm exposed pad) 16 Ind Reel, 5000 - $1.61 Y  Material Info PCN Purchase
    Price Table Help

    The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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