Alternative Parts


Features and Benefits

  • +36dBm Input IP3
  • 2.4dB Conversion Gain
  • Low Noise Figure: <10dB
  • +18dBm Ultra High Input P1dB
  • 670mW Power Consumption
  • 2.5V to 3.6V Operation
  • 50Ω Single-Ended RF and LO Inputs
  • 0dBm LO Drive Level
  • Low Power Mode
  • –40°C to 105°C Operation (TC)
  • Small Solution Size
  • Enable Pin
  • 16-Lead (4mm × 4mm) QFN Package

Product Details

The LTC5551 is a 2.5V to 3.6V mixer optimized for RF downconverting mixer applications that require very high dynamic range. The LTC5551 covers the 300MHz to 3.5GHz RF Frequency range with LO frequency range of 200MHz to 3.5GHz. The LTC5551 provides very high IIP3 and P1dB with low power consumption. A typical application is a basestation receiver covering 700MHz to 2.7GHz frequency range. The RF input can be matched for a wide range of frequencies and the IF is usable up to 1GHz.

A low power mode is activated by pulling the ISEL pin high, reducing the power consumption by about 1/3, however, with a corresponding reduction in IIP3 to approximately +29dBm. The mixer can also be turned on or off by using the EN pin.

The LTC5551’s high level of integration minimizes the total solution cost, board space and system level variation, while providing the highest dynamic range for demanding receiver applications.


  • GSM, LTE, LTE-Advanced Basestations
  • Repeaters
  • DPD Observation Receiver
  • Public Safety Radios, Military and Defense
  • Avionics Radios and TCAS Transponders
  • Active Phased-Array Antennas
  • White-Space Radio Receiver

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

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.

Product Recommendations

LTC5551 Companion Parts

Recommended ADC Drivers

Recommended ADCs

Recommended Output Amplifiers

Recommended Suggested Oscillator

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.

Sample & Buy

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Buy Now Pricing

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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.



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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through 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.