1. Products
  2. A/D Converters (ADC)
  3. High Speed A/D Converters >10 MSPS
  4. Standard High Speed A/D Converters
  5. LTC2256-14

Data Sheet
PDF
JP
User Guide
2 View All
IBIS Model
1 View All
Evaluation Software
1 View All

Overview

Features and Benefits

  • 74dB SNR
  • 88dB SFDR
  • Low Power: 81mW/49mW/35mW
  • Single 1.8V Supply
  • CMOS, DDR CMOS or DDR LVDS Outputs
  • Selectable Input Ranges: 1VP-P to 2VP-P
  • 800MHz Full-Power Bandwidth S/H
  • Optional Data Output Randomizer
  • Optional Clock Duty Cycle Stabilizer
  • Shutdown and Nap Modes
  • Serial SPI Port for Configuration
  • Pin Compatible 14-Bit and 12-Bit Versions
  • 40-Pin (6mm × 6mm) QFN Package

Product Details

The LTC2258-14/LTC2257-14/LTC2256-14 are sampling 14-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding communications applications with AC performance that includes 74dB SNR and 88dB spurious free dynamic range (SFDR). Ultralow jitter of 0.17psRMS allows undersampling of IF frequencies with excellent noise performance.

DC specs include ±1LSB INL (typical), ±0.3LSB DNL (typical) and no missing codes over temperature. The transition noise is a low 1.13LSBRMS.

The digital outputs can be either full rate CMOS, double data rate CMOS, or double data rate LVDS. A separate output power supply allows the CMOS output swing to range from 1.2V to 1.8V.

The ENC+ and ENC– inputs may be driven differentially or single ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.


 Bits
LTC2256-12 12
LTC2256-14 14

Applications

  • Communications
  • Cellular Base Stations
  • Software Defined Radios
  • Portable Medical Imaging
  • Multi-Channel Data Acquisition
  • Nondestructive Testing

Product Categories

Comparable Parts Click to see all in Parametric Search

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)

Documentation & Resources

  • View All (8)
  • Data Sheet (1)
  • Reliability Data (1)
  • User Guide (2)
  • Product Selector Card (3)
  • Technical Article (1)
    • 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.

    Tools & Simulations

    IBIS Model

    Product Recommendations

    LTC2256-14 Companion Parts

    Recommended ADC Drivers

    Recommended Suggested Oscillator

    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
    LTC2256CUJ-14#PBF Material Declaration Reliability Data 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
    LTC2256CUJ-14#TRPBF Material Declaration Reliability Data 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
    LTC2256IUJ-14#PBF Material Declaration Reliability Data 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
    LTC2256IUJ-14#TRPBF Material Declaration Reliability Data 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
    Wafer Fabrication Data R538 Reliability Data

    Support & Discussions

    LTC2256-14 Contact ADI Technical Support »
    LTC2256-14 Ask your question »
    LTC2256-14 Contact ADI Technical Support » LTC2256-14 Ask your question »

    Sample & Buy


    Ordering FAQs


    See our Ordering FAQs for answers to questions about online orders, payment options and more.

     

    Buy Now Pricing


    (**) Displayed Buy Now Price and Price Range is based on small quantity orders.

     

    List Pricing


    (*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

     

    Lead Times


    Please see the latest communication from our CCO regarding lead times.

     

    Sampling


    A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.


    Price Table Help

     

    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.

    •