Overview

Features and Benefits

  • 20MHz to 1700MHz Bandwidth
  • 15.5dB Power Gain
  • 47dBm OIP3 at 240MHz into a 50Ω Load
  • NF = 3.33dB at 240MHz
  • 1nV/√Hz Total Input Noise
  • S11 < -15dB Up to 1.2GHz
  • S22 < -15dB Up to 1.2GHz
  • > 2VP-P Linear Output Swing
  • P1dB = 20.6dBm
  • DC Power = 450mW
  • 50Ω Single-Ended Operation
  • Insensitive to VCC Variation
  • A-Grade 100% OIP3 Tested at 240MHz
  • Input/Output Internally Matched to 50Ω
  • Single 5V Supply
  • Unconditionally Stable

Product Details

The LTC6431-15 is a gain-block amplifier with excellent linearity at frequencies beyond 1000MHz and with low associated output noise.

The unique combination of high linearity, low noise and low power dissipation make this an ideal candidate for many signal-chain applications. The LTC6431-15 is easy to use, requiring a minimum of external components. It is internally input/output matched to 50Ω and it draws only 90mA from a single 5V supply.

On-chip bias and temperature compensation maintain performance over environmental changes.

The LTC6431-15 uses a high performance SiGe BiCMOS process for excellent repeatability compared with similar GaAs amplifiers. All A-grade LTC6431-15 devices are tested and guaranteed for OIP3 at 240MHz. The LTC6431-15 is housed in a 4mm x 4mm 24-lead QFN package with an exposed pad for thermal management and low inductance.

Applications

  • Single-Ended IF Amplifier
  • ADC Driver
  • CATV

Product Categories

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

Sys-Parameters

Sys-Parameter Models for Keysight Genesys

Sys-Parameter models contain behavioral parameters, such as P1dB, IP3, gain, noise figure and return loss, which describe nonlinear and linear characteristics of a device.

S-Parameters

Design Tools

ADIsimRF

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

LTC6431-15 Companion Parts

Recommended ADCs

Recommended Related Parts

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.

Discussions

LTC6431-15 Discussions

RE: HMC1110, admv7710-mounting and bonding questions
2 day(s) ago in RF and Microwave
RE: LTC4269-1 start-up problem
2 day(s) ago in Power By Linear
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Evaluation Boards Pricing displayed is based on 1-piece.
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.