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  2. A/D Converters (ADC)
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  5. LTC2122

Data Sheet
PDF
JP
User Guides
2 View All
Evaluation Code
1 View All

Overview

Features and Benefits

  • 6.0Gbps JESD204B Interface
  • Only One Output Lane Required for Both ADCs (FS ≤ 150Msps)
  • 70dBFS SNR
  • 90dBFS SFDR
  • Low Power: 751mW Total
  • Single 1.8V Supply
  • Easy to Drive 1.5VP-P Input Range
  • 1.25GHz Full Power Bandwidth S/H
  • Optional Clock Divide by Two
  • Optional Clock Duty Cycle Stabilizer
  • Low Power Sleep and Nap Modes
  • Serial SPI Port for Configuration
  • 48-Lead (7mm × 7mm) QFN Package

Product Details

The LTC2122 is a 2-channel simultaneous sampling 170Msps 14-bit A/D converter with serial JESD204B outputs. It is designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding communications applications with AC performance that includes 70dBFS SNR and 90dBFS spurious free dynamic range (SFDR). The 1.25GHz input bandwidth allows the ADC to under-sample high frequencies.

The JESD204B serial interface simplifies the PCB design by minimizing the number of data lines required. At 170Msps, only two 3.4Gbps output lanes are required. For sample rates up to 150Msps, both ADCs may share the same output lane at up to 6.0Gbps.

The DEVCLK+ and DEVCLK– inputs can be driven differentially with sine wave, PECL, or LVDS signals. An optional clock divide-by-two circuit or clock duty cycle stabilizer maintains high performance at full speed for a wide range of clock duty cycles.

Applications

  • Communications
  • Cellular Base Stations
  • Software Defined Radios
  • Medical Imaging
  • High Definition Video
  • Test and Measurement Instrumentation

Product Categories

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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 (5)
  • Data Sheets (1)
  • Reliability Data (1)
  • User Guides (2)
  • Product Selector Card (1)
    • Document Type

    Software & Systems Requirements

    Evaluation Code

    ZIP
    14.00M

    KC705 FPGA Source Code for DC1974

    Product Recommendations

    LTC2122 Companion Parts

    Recommended ADC Drivers

    Recommended D/A Converters

    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
    LTC2122CUK#PBF Material Declaration Reliability Data 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)
    LTC2122CUK#TRPBF Material Declaration Reliability Data 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)
    LTC2122IUK#PBF Material Declaration Reliability Data 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)
    LTC2122IUK#TRPBF Material Declaration Reliability Data 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP)
    Wafer Fabrication Data R538 Reliability Data

    Support & Discussions

    LTC2122 Discussions

    RE: LTC2122 odd behavior
    RE: Reading data of LTC2122 ADC
    All LTC2122 Discussions
    LTC2122 Contact ADI Technical Support »
    LTC2122 Ask your question »
    LTC2122 Contact ADI Technical Support » LTC2122 Ask your question »

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