LTC2248 14-Bit, 65Msps Low Power 3V ADC

The LTC®2248/LTC2247/LTC2246 are 14-bit 65Msps/40Msps/25Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2248/LTC2247/LTC2246 are perfect for demanding imaging and communications applications with AC performance that includes 74dB SNR and 80dB SFDR for signals well beyond 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 1LSBRMS.

A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.6V 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

产品特点 Features
  • Sample Rate: 65Msps/40Msps/25Msps
  • Single 3V Supply (2.7V to 3.4V)
  • Low Power: 205mW/120mW/75mW
  • 74.3dB SNR
  • 90dB SFDR
  • No Missing Codes
  • Flexible Input: 1VP-P to 2VP-P Range
  • 575MHz 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
封装
LTC2248 封装
应用
  • Wireless and Wired Broadband Communication
  • Imaging Systems
  • Ultrasound
  • Spectral Analysis
  • Portable Instrumentation
典型应用图
LTC2248 典型应用
参数
LTC2248 参数
LTC2248 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LTC2248CUH#PBF QFN 32 C $16.60  $12.50 
LTC2248CUH#TRPBF QFN 32 C $12.60 
LTC2248IUH#PBF QFN 32 I $20.75  $15.00 
LTC2248IUH#TRPBF QFN 32 I $15.10 
LTC2248 演示电路板
器件型号 描述
DC782A-B LTC2248IUH | High Speed ADC, VDD = +3.0V, 65Msps, 14-Bit 1MHz < Ain < 70MHz, req DC718
Companion Boards
器件型号 描述
DC1075A Clock Divider board
DC1164A High Speed ADC Signal Source
DC1216A-A 100MHz High Speed ADC Clock Source
DC1216A-B 122.88MHz High Speed ADC Clock Source
DC1216A-C 80MHz High Speed ADC Clock Source
DC718C USB Data Acquisition Controller, for QuikEval -II Evaluation Kits
LTC2248 数据手册及相关资料下载
  1. 数据手册(英文) : LTC2248/LTC2247/LTC2246 - 14-Bit, 65/40/25Msps Low Power 3V ADCs.PDF
  2. 可靠性数据 : R478 Reliability Data .PDF
  3. 产品选型卡 : Differential Amplifiers/High Speed ADC Drivers .PDF
  4. 产品选型卡 : Digital Predistortion Solutions..PDF
  5. 产品选型卡 : 14-/12-Bit Quad & Dual, Serial LVDS ADCs .PDF
  6. 软件和仿真: LTC2249 IBIS model.IBS