LTC2253 - 12-Bit, 125Msps Low Power 3V ADCs

The LTC2253/LTC2252 are 12-bit 125Msps/105Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2253/LTC2252 are perfect for demanding imaging and communications applications with AC performance that includes 70.1dB SNR and 85dB SFDR for signals at the Nyquist frequency.

DC specs include ±0.3LSB INL (typ), ±0.15LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.32LSBRMS.

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.

Features
  • Sample Rate: 125Msps/105Msps
  • Single 3V Supply (2.85V to 3.4V)
  • Low Power: 395mW/320mW
  • 70.2dB 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
Typical Application

Applications
  • Wireless and Wired Broadband Communication
  • Imaging Systems
  • Ultrasound
  • Spectral Analysis
  • Portable Instrumentation
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC2253CUH#PBF5x5 QFN-32C$39.29$27.50
LTC2253CUH#TRPBF5x5 QFN-32C$27.60
LTC2253IUH#PBF5x5 QFN-32I$47.14$33.00
LTC2253IUH#TRPBF5x5 QFN-32I$33.10
Demo Boards
Part NumberDescriptionPrice
DC782A-ULTC2253IUH | High Speed ADC, VDD = +3.0V, 125Msps, 12-Bit 10MHz < Ain < 170MHz, req DC718$200.00
Companion Boards
Part NumberDescriptionPrice
DC718CUSB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps)$300.00
Datasheet
Reliability Data
Product Selector Card
Press Release
Software and Simulation
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LTC2253 Footprints and Symbols