Overview

Features and Benefits

  • 1.9GHz –3dB Bandwidth
  • Fixed Gain of 20V/V (26dB)
  • –94dBc IMD3 at 70MHz (Equivalent OIP3 = 51dBm)
  • –71dBc IMD3 at 300MHz (Equivalent OIP3 = 39.5dBm)
  • 1nV/√Hz Internal Op Amp Noise
  • 1.5nV/√Hz Total Input Referred Noise
  • 6.8dB Noise Figure
  • Differential Inputs and Outputs
  • 50Ω Input Impedance
  • 2.85V to 3.5V Supply Voltage
  • 85mA Supply Current (255mW)
  • 1V to 1.6V Output Common Mode, Adjustable
  • DC- or AC-Coupled Operation
  • Max Differential Output Swing 4.7VP-P
  • Small 16-Lead 3mm × 3mm × 0.75mm QFN Package
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Product Details

The LTC6400-26 is a high-speed differential amplifier targeted at processing signals from DC to 300MHz. The part has been specifically designed to drive 12-, 14- and 16-bit ADCs with low noise and low distortion, but can also be used as a general-purpose broadband gain block.

The LTC6400-26 is easy to use, with minimal support circuitry required. The output common mode voltage is set using an external pin, independent of the inputs, which eliminates the need of transformers or AC-coupling capacitors in many applications. The gain is internally fixed at 26dB (20V/V).

The LTC6400-26 saves space and power compared to alternative solutions using IF gain blocks and transformers. The LTC6400-26 is packaged in a compact 16-lead 3mm × 3mm QFN package and operates over the –40°C to 85°C temperature range.

Applications

  • Differential ADC Driver
  • Differential Driver/Receiver
  • Single Ended to Differential Conversion
  • IF Sampling Receivers
  • SAW Filter Interfacing

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

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTspice

Models for the following parts are available in LTspice:

LTC6400-14
LTC6400-20
LTC6400-26
LTC6400-8

Reference Materials

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.
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.