Features and Benefits

  • Sample Rate: 65Msps
  • 76.5dB SNR and 90dB SFDR (3.2V Range)
  • 72.8dB SNR and 90dB SFDR (2V Range)
  • No Missing Codes
  • Single 5V Supply
  • Power Dissipation: 1.275W
  • Selectable Input Ranges: ±1V or ±1.6V
  • 240MHz 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 LTC1742 is an 65Msps, 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 LTC1742’s input range to be optimized for a wide variety of applications.

The LTC1742 is perfect for demanding communications applications with AC performance that includes 76.5dB SNR and 90dB spurious free dynamic range. Ultralow jitter of 0.15psRMS allows undersampling of IF frequencies with excellent noise performance. DC specs include ±3LSB INL and ±1LSB DNL.

The digital interface is compatible with 5V, 3V, 2V and LVDS logic levels. 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 low voltage DSPs or FIFOs.

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


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

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 (2)

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.


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.

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.

PCN-PDN Information

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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.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.