1. Products
  2. RF and Microwave
  3. RF Mixers
  4. Single, Double, and Triple Balanced Mixers
  5. LTC5556


Features and Benefits

  • 9dB Power Conversion Gain
  • 32dBm Output IP3
  • 15.5dB Range IF DVGA in 0.5dB Steps
  • IF Frequency Range Up to 900MHz
  • Reduced Power Mode
  • 3.3V Single Supply
  • Simple SPI for Fast Development
  • –40°C to 105°C Operation (TC)
  • Very Small Solution Size
  • 32-Lead (5mm × 5mm) QFN Package

Product Details

The LTC5556 dual programmable gain downconverting mixer is ideal for diversity and MIMO receivers that require precise gain setting. Each channel incorporates an active mixer and a digital IF VGA with 15.5dB gain control range. The IF gain of each channel is programmed in 0.5dB steps through the SPI.

Enable pins for each channel allow fast turn-on and shutdown. A reduced power mode is also available.

The device has the same functionality as the LTC5566, but the mixers are optimized for a higher 3GHz to 7GHz RF frequency range and the IF is optimized for use up to 900MHz. The mixers may be used down to 1.5GHz, or up to 8GHz with degraded performance.

Dual Programmable Gain Downconverting Mixers
LTC5556 3GHz to 7GHz 1MHz to 900MHz
LTC5566 300MHz to 4.5GHz 1MHz to 500MHz


  • 4G and 5G MIMO Receivers
  • 5.1GHz to 5.9GHz LTE-U
  • Distributed Antenna Systems (DAS)
  • Network Test/Monitoring Equipment
  • Fixed Satellite Services

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Tools & Simulations


Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

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

Purchase Linduino


Design Tools


ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

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.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LTC5556IUH#PBF Material Declaration Reliability Data 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP)
LTC5556IUH#TRPBF Material Declaration Reliability Data 32-Lead QFN (5mm x 5mm x 0.75mm w/ EP)
Wafer Fabrication Data

Sample & Buy

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Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

Please see the latest communication from our CCO regarding lead times.



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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.