Features and Benefits

  • Optimized Gain Flatness from 2.5GHz to 7GHz
  • 31dBm Output IP3
  • 9dB Power Conversion Gain
  • 15.5dB Adjustable Gain Range
  • SPI or Parallel Gain Control in 0.5dB Steps
  • Very Small Solution Size
  • 3.3V Single Supply
  • Low Power and Shutdown Modes
  • 28-Lead (4mm × 5mm) QFN Package

Product Details

The LTC5555 programmable gain downconverting mixer is ideal for receivers that require precise gain setting. The IC incorporates an active mixer and a digital IF VGA with 15.5dB gain control range. The IF gain is programmed in 0.5dB steps through the SPI or parallel interface.

An enable pin allows for fast turn-on and shutdown. A reduced power mode is also available.

An integrated RF transformer provides a single-ended 50Ω input. The differential LO input is designed for single-ended or differential drive. The differential IF output simplifies the interface to differential IF filters and amplifiers. The mixer is optimized for the 3GHz to 7GHz RF frequency range but may be used down to 1.5GHz with degraded performance.


  • 3.6GHz, 4.8GHz and 5.8GHz Band Wireless Infrastructure Receivers
  • Wireless Repeaters
  • Military Radar and Communications Receivers
  • Test and Measurement Equipment
  • Software-Defined Radios

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Tools & Simulations


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Linduino code repository on GitHub and instructions on how to use the code.

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Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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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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Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.