1. Products
  2. A/D Converters (ADC)
  3. High Speed A/D Converters >10 MSPS
  4. Standard High Speed A/D Converters
  5. LTC1744

Data Sheet
PDF
JP
User Guides
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Evaluation Software
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Overview

Features and Benefits

  • Sample Rate: 50Msps
  • 77dB SNR and 87dB SFDR (3.2V Range)
  • 73.5dB SNR and 90dB SFDR (2V Range)
  • No Missing Codes
  • Single 5V Supply
  • Power Dissipation: 1.2W
  • Selectable Input Ranges: ±1V or ±1.6V
  • 150MHz Full Power Bandwidth S/H
  • Pin Compatible Family
    • 25Msps: LTC1746 (14 Bit), LTC1745 (12 Bit)
    • 50Msps: LTC1744 (14 Bit), LTC1743 (12 Bit)
    • 65Msps: LTC1742 (14 Bit), LTC1741 (12 Bit)
    • 80Msps: LTC1748 (14 Bit), LTC1747 (12 Bit)
  • 48-Pin TSSOP Package

Product Details

The LTC1744 is a 50Msps, sampling 14-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. Pin selectable input ranges of ±1V and ±1.6V along with a resistor programmable mode allow the LTC1744’s input range to be optimized for a wide variety of applications.

The LTC1744 is perfect for demanding communications applications with AC performance that includes 77dB SNR and 87dB spurious free dynamic range. Ultralow jitter of 0.3psRMS allows undersampling of IF frequencies with excellent noise performance. DC specs include ±4LSB maximum INL and no missing codes over temperature.

The digital interface is compatible with 5V, 3V and 2V logic systems. The ENC and ENC inputs may be driven differentially from PECL, GTL and other low swing logic families or from single-ended TTL or CMOS. The low noise, high gain ENC and ENC inputs may also be driven by a sinusoidal signal without degrading performance. A separate output power supply can be operated from 0.5V to 5V, making it easy to connect directly to any low voltage DSPs or FIFOs.

The TSSOP package with a flow-through pinout simplifies the board layout.

Applications

  • Telecommunications
  • Receivers
  • Base Stations
  • Spectrum Analysis
  • Imaging Systems

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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)

Documentation & Resources

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  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (1)
  • Product Selector Card (1)
  • Design Notes (1)
  • Technical Articles (2)
    • Document Type

    Software & Systems Requirements

    Evaluation Software

    LinearLab Tools
    A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.

    PScope
    The PScope System is a USB-based product demonstration and data acquisition system for use with high performance ADCs and signal chain receiver family. PScope allows users to evaluate the SNR, SFDR, THD, as well as other key parameters, quickly and easily.

    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.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    LTC1744CFW#PBF Material Declaration Reliability Data 48-Lead TSSOP
    LTC1744CFW#TRPBF Material Declaration Reliability Data 48-Lead TSSOP
    LTC1744IFW#PBF Material Declaration Reliability Data 48-Lead TSSOP
    LTC1744IFW#TRPBF Material Declaration Reliability Data 48-Lead TSSOP
    Wafer Fabrication Data R461 Reliability Data

    PCN-PDN Information

    Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

    Select Model for PCN Information
    • LTC1744CFW#PBF Production
    • LTC1744CFW#TRPBF Production
    • LTC1744IFW#PBF Production
    • LTC1744IFW#TRPBF Production

    Support & Discussions

    LTC1744 Contact ADI Technical Support »
    LTC1744 Ask your question »
    LTC1744 Contact ADI Technical Support » LTC1744 Ask your question »

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    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.

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