Data Conversion Analog-to-Digital Converters (ADC) High Speed ADCs

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LTC6401-14 - 2GHz Low Noise, Low Distortion Differential ADC Driver for DC-140MHz
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LTC2255 - 14-Bit, 125Msps Low Power 3V ADCs

Features

  • Sample Rate: 125Msps/105Msps
  • Single 3V Supply (2.85V to 3.4V)
  • Low Power: 395mW/320mW
  • 72.4dB SNR
  • 88dB SFDR
  • No Missing Codes
  • Flexible Input: 1VP-P to 2VP-P Range
  • 640MHz Full Power Bandwidth S/H
  • Clock Duty Cycle Stabilizer
  • Shutdown and Nap Modes
  • Pin Compatible Family
    125Msps: LTC2253 (12-Bit), LTC2255 (14-Bit)
    105Msps: LTC2252 (12-Bit), LTC2254 (14-Bit)
    80Msps: LTC2229 (12-Bit), LTC2249 (14-Bit)
    65Msps: LTC2228 (12-Bit), LTC2248 (14-Bit)
    40Msps: LTC2227 (12-Bit), LTC2247 (14-Bit)
    25Msps: LTC2226 (12-Bit), LTC2246 (14-Bit)
    10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit)
  • 32-Pin (5mm × 5mm) QFN Package
This Product is subject to United States Export Control and may require a license for export to certain countries

Typical Application

LTC2255 Typical Application
LTC2255 Typical Application

Description

The LTC2255/LTC2254 are 14-bit 125Msps/105Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2255/LTC2254 are perfect for demanding imaging and communications applications with AC performance that includes 72.3dB SNR and 85dB SFDR for signals at the Nyquist frequency.

DC specs include ±1LSB INL (typ), ±0.5LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 1.3 LSBRMS.

A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.3V logic.

A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

QFN-32

LTC2255 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC2255CUH QFN 32 C $70.00 $49.00 View
LTC2255CUH#PBF QFN 32 C $70.00 $49.00 View
LTC2255CUH#TR QFN 32 C $49.10 View
LTC2255CUH#TRPBF QFN 32 C $49.10 View
LTC2255IUH QFN 32 I $84.00 $58.80 View
LTC2255IUH#PBF QFN 32 I $84.00 $58.80 View
LTC2255IUH#TR QFN 32 I $58.90 View
LTC2255IUH#TRPBF QFN 32 I $58.90 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.

Demo Boards

Linear Technology demo boards are offered free of charge to qualified customers. Contact your local sales office or distributor to request a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC782A-S LTC2255IUH | High Speed ADC, VDD = +3.0V, 125Msps, 14-Bit 10MHz < Ain < 170MHz, req DC718 $200.00
DC900A-01V Combo Demoboard for LTC2255 and LT1993-2 (6dB) Req DC718 Contact Factory
DC900A-02U Combo Demoboard for LTC2255 and LT1993-4 (12dB) Req DC718 Contact Factory
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Companion Boards

Part Number Description Price Documentation
DC1164A High Speed ADC Signal Source $300.00
DC1216A-A 100MHz High Speed ADC Clock Source $150.00
DC1216A-B 122.88MHz High Speed ADC Clock Source $150.00
DC1216A-C 80MHz High Speed ADC Clock Source $150.00
DC718C USB Data Acquisition Controller, for QuikEval -II Evaluation Kits $300.00
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Click here to view our complete list of demo boards

Applications

  • Wireless and Wired Broadband Communication
  • Imaging Systems
  • Ultrasound
  • Spectral Analysis
  • Portable Instrumentation

Simulate

LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.

Technical Support