LTC2251 - 10-Bit, 125Msps Low Noise 3V ADCs

The LTC®2251/LTC2250 are 10-bit 125Msps/105Msps, low noise 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2251/LTC2250 are perfect for demanding imaging and communications applications with AC performance that includes 61.6dB SNR and 85dB SFDR for signals at the Nyquist frequency.

DC specs include ±0.1LSB INL (typ), ±0.05LSB DNL (typ) and ±0.6LSB INL, ±0.6LSB DNL over temperature. The transition noise is a low 0.08LSBRMS.

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.

特点
  • Sample Rate: 125Msps/105Msps
  • Single 3V Supply (2.85V to 3.4V)
  • Low Power: 395mW/320mW
  • 61.6dB SNR
  • 85dB 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: LTC2251 (10-Bit), LTC2253 (12-Bit)105Msps: LTC2250 (10-Bit), LTC2252 (12-Bit)80Msps: LTC2239 (10-Bit), LTC2229 (12-Bit)65Msps: LTC2238 (10-Bit), LTC2228 (12-Bit)40Msps: LTC2237 (10-Bit), LTC2227 (12-Bit)25Msps: LTC2236 (10-Bit), LTC2226 (12-Bit)
  • 32-Pin (5mm × 5mm) QFN Package
典型应用
LTC2251 Typical Application
LTC2251 Typical Application
应用
  • Wireless and Wired Broadband Communication
  • Imaging Systems
  • Ultrasound
  • Spectral Analysis
  • Portable Instrumentation
封装信息
LTC2251 Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
LTC2251CUH#PBF5x5 QFN-32C$17.14$12.00
LTC2251CUH#TRPBF5x5 QFN-32C$12.10
LTC2251IUH#PBF5x5 QFN-32I$20.57$14.40
LTC2251IUH#TRPBF5x5 QFN-32I$14.50
演示电路板
器件型号描述价格
DC782A-WLTC2251IUH | High Speed ADC, VDD = +3.0V, 125Msps, 10-Bit 10MHz < Ain < 170MHz, req DC718$200.00
Companion Boards
器件型号描述价格
DC718CUSB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps)$300.00
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LTC2251 Footprints and Symbols