LTC6400-20
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LTC6400-20

1.8GHz Low Noise, Low Distortion Differential ADC Driver for 300MHz IF

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Part Details
Part Models 4
1ku List Price Starting From $3.84
Features
  • 1.8GHz –3dB Bandwidth
  • Fixed Gain of 10V/V (20dB)
  • –94dBc IMD3 at 70MHz (Equivalent OIP3 = 51dBm)
  • –65dBc IMD3 at 300MHz (Equivalent OIP3 = 36.5dBm)
  • 1nV/√Hz Internal Op Amp Noise
  • 2.1nV/√Hz Total Input Noise
  • 6.2dB Noise Figure
  • Differential Inputs and Outputs
  • 200Ω Input Impedance
  • 2.85V to 3.5V Supply Voltage
  • 90mA Supply Current (270mW)
  • 1V to 1.6V Output Common Mode Voltage, Adjustable
  • DC- or AC-Coupled Operation
  • Max Differential Output Swing 4.4VP-P
  • Small 16-Lead 3mm × 3mm × 0.75mm QFN Package
Additional Details
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The LTC6400-20 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 LTC6400-20 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 for transformers or AC-coupling capacitors in many applications. The gain is internally fixed at 20dB (10V/V).

The LTC6400-20 saves space and power compared to alternative solutions using IF gain blocks and transformers. The LTC6400-20 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
Part Models 4
1ku List Price Starting From $3.84

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

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Mar 20, 2024

- 23_0089

Obsolescence of Tower Fab3 (JAZZ-3) SBC35 Process

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PCN

Mar 20, 2024

- 23_0089

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Obsolescence of Tower Fab3 (JAZZ-3) SBC35 Process

LTC6400CUD-20#PBF

LAST TIME BUY

LTC6400CUD-20#TRPBF

LAST TIME BUY

LTC6400IUD-20#PBF

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

Tools & Simulations

Tools & Simulations 3

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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