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  2. A/D Converters (ADC)
  3. High Speed A/D Converters >10 MSPS
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  5. LTC2195

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Overview

Features and Benefits

  • 2-Channel Simultaneous Sampling ADC
  • Serial LVDS Outputs: 1, 2 or 4 Bits per Channel
  • 76.8dB SNR
  • 90dB SFDR
  • Low Power: 432mW/360mW/249mW Total
  • 216mW/180mW/125mW per Channel
  • Single 1.8V Supply
  • Selectable Input Ranges: 1VP-P to 2VP-P
  • 550MHz Full-Power Bandwidth S/H
  • Shutdown and Nap Modes
  • Serial SPI Port for Configuration
  • 52-Pin (7mm × 8mm) QFN Package

Product Details

The LTC2195/LTC2194/LTC2193 are 2-channel, simultaneous sampling 16-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 76.8dB SNR and 90dB spurious free dynamic range (SFDR). Ultralow jitter of 0.07psRMS allows undersampling of IF frequencies with excellent noise performance.

DC specs include ±2LSB INL (typ), ±0.5LSB DNL (typ) and no missing codes over temperature. The transition noise is 3.4LSBRMS.

To minimize the number of data lines the digital outputs are serial LVDS. Each channel outputs two bits or four bits at a time. At lower sampling rates there is a one bit per channel option. The LVDS drivers have optional internal termination and adjustable output levels to ensure clean signal integrity.

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

Applications

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

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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 (2)
  • Technical Articles (1)
    • Document Type

    Tools & Simulations

    IBIS Models

    Product Recommendations

    LTC2195 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
    LTC2195CUKG#PBF Material Declaration Reliability Data 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP)
    LTC2195CUKG#TRPBF Material Declaration Reliability Data 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP)
    LTC2195IUKG#PBF Material Declaration Reliability Data 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP)
    LTC2195IUKG#TRPBF Material Declaration Reliability Data 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP)
    Wafer Fabrication Data R538 Reliability Data

    Support & Discussions

    LTC2195 Discussions

    RE: Do you have any Serial LVDS ADC Reference Design?
    All LTC2195 Discussions
    LTC2195 Contact ADI Technical Support »
    LTC2195 Ask your question »
    LTC2195 Contact ADI Technical Support » LTC2195 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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