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  2. A/D Converters (ADC)
  3. High Speed A/D Converters >10 MSPS
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  5. LTC2170-14

Data Sheet
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Overview

Features and Benefits

  • 4-Channel Simultaneous Sampling ADC
  • 73.7dB SNR
  • 90dB SFDR
  • Low Power: 311mW/202mW/162mW Total, 78mW/51mW/41mW per Channel
  • Single 1.8V Supply
  • Serial LVDS Outputs: One or Two Bits per Channel
  • Selectable Input Ranges: 1VP-P to 2VP-P
  • 800MHz Full Power Bandwidth Sample-and-Hold
  • Shutdown and Nap Modes
  • Serial SPI Port for Configuration
  • Pin-Compatible 14-Bit and 12-Bit Versions
  • 52-Pin (7mm × 8mm) QFN Package

Product Details

The LTC2172-14/LTC2171-14/LTC2170-14 are 4-channel, simultaneous 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 73.7dB SNR and 90dB spurious free dynamic range (SFDR). An ultralow jitter of 0.15psRMS allows undersampling of IF frequencies with excellent noise performance.

DC specifications include ±1LSB INL (typ), ±0.3LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 1.2LSBRMS.

The digital outputs are serial LVDS to minimize the number of data lines. Each channel outputs two bits at a time (2-lane mode) or one bit at a time (1-lane mode). 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.

Bits
LTC2170-12 12
LTC2170-14 14

Applications

  • Communications
  • Cellular Base Stations
  • Software Defined Radios
  • Portable Medical Imaging
  • Multichannel 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

    LTC2170-14 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
    LTC2170CUKG-14#PBF Material Declaration Reliability Data 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP)
    LTC2170CUKG-14#TRPBF Material Declaration Reliability Data 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP)
    LTC2170IUKG-14#PBF Material Declaration Reliability Data 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP)
    LTC2170IUKG-14#TRPBF Material Declaration Reliability Data 52-Lead QFN (7mm x 8mm x 0.75mm w/ EP)
    Wafer Fabrication Data R538 Reliability Data

    Support & Discussions

    LTC2170-14 Discussions

    LTC2170-14 Theta Jb or high-temp part
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    LTC2170-14 Contact ADI Technical Support »
    LTC2170-14 Ask your question »
    LTC2170-14 Contact ADI Technical Support » LTC2170-14 Ask your question »

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