1. Products
  2. A/D Converters (ADC)
  3. High Speed A/D Converters >10 MSPS
  4. Standard High Speed A/D Converters
  5. LTC2273


Features and Benefits

  • High Speed Serial Interface (JESD204)
  • Sample Rate: 80Msps/65Msps
  • 77.7dBFS Noise Floor
  • 100dB SFDR
  • SFDR >90dB at 140MHz (1.5VP-P Input Range)
  • PGA Front End (2.25VP-P or 1.5VP-P Input Range)
  • 700MHz Full Power Bandwidth S/H
  • Optional Internal Dither
  • Single 3.3V Supply
  • Power Dissipation: 1100mW/990mW
  • Clock Duty Cycle Stabilizer
  • Pin Compatible Family
    • 105Msps: LTC2274
    • 80Msps: LTC2273
    • 65Msps: LTC2272
  • 40-Pin 6mm × 6mm QFN Package

Product Details

The LTC2273/LTC2272 are 80Msps/65Msps, 16-bit A/D converters with a high speed serial interface. They are designed for digitizing high frequency, wide dynamic range signals with an input bandwidth of 700MHz. The input range of the ADC can be optimized using the PGA front end. The output data is serialized according to the JEDEC serial interface for data converters specification (JESD204).

The LTC2273/LTC2272 are perfect for demanding applications where it is desirable to isolate the sensitive analog circuits from the noisy digital logic. The AC performance includes a 77.7dB Noise Floor and 100dB spurious free dynamic range (SFDR). Ultra low internal jitter of 80fs RMS allows undersampling of high input frequencies with excellent noise performance. Maximum DC specs include ±4.5LSB INL and ±1LSB DNL (no missing codes) over temperature.

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


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

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.

Product Recommendations

LTC2273 Companion Parts

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
LTC2273CUJ#PBF Material Declaration Reliability Data 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
LTC2273CUJ#TRPBF Material Declaration Reliability Data 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
LTC2273IUJ#PBF Material Declaration Reliability Data 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
LTC2273IUJ#TRPBF Material Declaration Reliability Data 40-Lead QFN (6mm x 6mm x 0.75mm w/ EP)
Wafer Fabrication Data R478 Reliability Data

Sample & Buy

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Buy Now Pricing

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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.