Features and Benefits

  • 100kHz to 1400MHz Bandwidth
  • 54.4dBm OIP3 at 1MHz into a 100Ω Diff Load
  • 48.0dBm OIP3 at 150MHz into a 100Ω Diff Load
  • Up to 15dBm Output Power
  • NF = 3.0dB at 240MHz
  • Low 1/f Noise Corner
  • User Defined Low Frequency
  • 15.2dB Fixed Power Gain
  • A-Grade 100% OIP3 Tested at 150MHz
  • 0.8 nV/√Hz Total Input Noise
  • >2.75VP-P Linear Output Swing
  • P1dB = 22.5dBm
  • Insensitive to VCC Variation
  • Input/Output Internally Matched to 100Ω Differential
  • Single 5V Supply
  • DC Power = 850mW
  • Unconditionally Stable

Product Details

The LTC6432-15 is an ultra-high dynamic range differentialgain block amplifier designed to drive high resolution,high speed ADCs. It offers a full GHz of data bandwidt h forcomplex spectrally efficient modulations schemes or wh ereresistance to blockers is critical. This unique device cansimultaneously achieve low noise, incomparable linearity and flat gain over the 100kHz to 1GHz band.

Unlike wideband GaAs PHEMTs, MESFETs and GaN FETs, this SiGe based amplifier exhibits low 1/f noise and can be used down to 100kHz.

The LTC6432-15 is designed for ease of use requiring a minimum of support components. Impedance matching, temperature compensation and bias control are handled internally to ensure consistent performance over environmental changes.

All A-Grade LTC6432-15 devices are tested and guaranteed for OIP3 at 150MHz. The LTC6432-15 is housed in a 4mm × 4mm, 24L, QFN package with an exposed pad for thermal management and low inductance.

For a single-ended 50Ω IF Gain Block with similar performance, see the related LTC6433-15.


  • Differential 1GHz Bandwidth ADC Driver
  • Wideband Test Instrument Amplifier
  • Differential IF Amplifier
  • 50Ω/75Ω Balanced IF Amplifier

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)

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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