LTC2272 - 16-Bit, 65Msps Serial Output ADC (JESD204)

Features

Electronic Design Best of 2008
  • Click Here for LTC2272 Evaluation Kits
  • 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

Typical Application

LTC2272
LTC2272
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Description

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.
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Packaging

QFN-40

LTC2272
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Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC2272CUJ#PBF QFN 40 C $74.29 $52.00 View
LTC2272CUJ#TRPBF QFN 40 C   $52.10 View
LTC2272IUJ#PBF QFN 40 I $89.14 $62.40 View
LTC2272IUJ#TRPBF QFN 40 I   $62.50 View
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* The USA 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 Linear Technology sales office or authorized distributor.

Evaluation Kits

Part Number Description Price
DC1151A-H LTC2272CUJ | 16-bit, 65Msps Serial ADC, 70MHz < Ain < 140MHz, req. DC890 $200.00
DC1151A-G LTC2272IUJ | 16-Bit, 65Msps Serial ADC, 1MHz < Ain < 70MHz, req. DC890 $200.00
DC890B High Speed USB Data Collection Board $300.00
DC890_LVDS_XFMR LVDS Power Transformer, goes with DC890B/ ADC LVDS demoboards $0.00
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Applications

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

To simulate selected Linear Technology products, please download LTSpice / SwitcherCAD III. This powerful schematic capture and simulation tool includes macro models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

For other simulation tools, visit our Design Simulation and Device Models page.

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