AD9642: 14-Bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V Analog-to-Digital Converter (ADC)

AD9642 功能框图The AD9642 is a 14-bit analog-to-digital converter (ADC) with sampling speeds of up to 250 MSPS. The AD9642 is designed to support communications applications, where low cost, small size, wide bandwidth, and versatility are desired.The ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. The ADC features wide bandwidth inputs that can support a variety of user-selectable input ranges. An integrated voltage reference eases design considerations. A duty cycle stabilizer (DCS) is provided to compensate for variations in the ADC clock duty cycle, allowing the converter to maintain excellent performance.The ADC output data is routed directly to the external 14-bit LVDS output port.Flexible power-down options allow significant power savings, when desired.Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface.The AD9642 is available in a 32-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°C. This product is protected by a U.S. patent.

技术特性
  • SNR = 71.0 dBFS at 185 MHz AIN and 250 MSPS
  • SFDR = 83 dBc at 185 MHz AIN and 250 MSPS
  • −152.0 dBFS/Hz input noise at 200 MHz, −1 dBFS AIN,
    250 MSPS
  • Total power consumption:
    390 mW at 250 MSPS
  • 1.8 V supply voltages
  • LVDS (ANSI-644 levels) outputs
  • Integer 1-to-8 input clock divider (625 MHz maximum input)
  • Sample rates of up to
    250 MSPS
  • IF sampling frequencies of up to 350 MHz
  • Internal ADC voltage reference
  • Flexible analog input range
    1.4 V p-p to 2.0 V p-p
    (1.75 V p-p nominal)
  • See data sheet for additional features
技术指标
  • Resolution (Bits): 14bit
  • # Chan: 1
  • Sample Rate: 250MSPS
  • Interface: LVDS
  • Analog Input Type: Diff-Bip,Diff-Uni
  • Ain Range: 1.75 V p-p
  • ADC Architecture: Pipelined
  • Pkg Type: CSP
应用领域
  • 通信
  • 分集无线电系统
  • 多模式数字接收机(3G)TD-SCDMA、WiMax、WCDMA CDMA2000、GSM、EDGE、LTE
  • I/Q解调系统
  • 智能天线系统
  • 通用软件无线电
  • 超声设备
  • 宽带数据应用
产品亮
  • Integrated 14-bit, 170 MSPS/210 MSPS/250 MSPS ADC.
  • Operation from a single 1.8 V supply and a separate digital output driver supply accommodating LVDS outputs.
  • Proprietary differential input maintains excellent SNR performance for input frequencies of up to 350 MHz.
  • 3-pin, 1.8 V SPI port for register programming and readback.
  • Pin compatibility with the AD9634, allowing a simple migration from 14 bits to 12 bits, and with the AD6672.
建议配套产品
  • 推荐AD9634使用的驱动放大器
    • 对于差分RF/IF,推荐使用超低失真ADL5562
  • 推荐AD9634使用的IF数字可变增益放大器
    • 针对数字通信系统中的全差分输入和输出DVGA,推荐使用ADL5202AD8376
  • 推荐AD9634使用的时钟驱动器
    • 如需低抖动性能和集成VCO,推荐使用AD9520AD9522系列可选VCO频率器件之一。
  • 推荐电源解决方案
    • 欲选择电压调节器产品,请使用ADIsimPower。
    • 欲选择电源监控器产品,请使用电源监控器参数搜索。

 

订购指南
产品型号 封装 引脚 温度范围 包装和数量 报价*(100-499) 报价*1000 pcs
AD9642BCPZ-170 产品状态: 量产 LFCSP:LEADFRM CHIP SCALE 32 工业 Tray, 490 $ 50.15 $ 42.63
AD9642BCPZ-210 产品状态: 量产 LFCSP:LEADFRM CHIP SCALE 32 工业 Tray, 490 $ 75.95 $ 64.56
AD9642BCPZ-250 产品状态: 量产 LFCSP:LEADFRM CHIP SCALE 32 工业 Tray, 490 $ 91.00 $ 77.35
AD9642BCPZRL7-170 产品状态: 量产 LFCSP:LEADFRM CHIP SCALE 32 工业 Reel, 1500 $ 50.15 $ 42.63
AD9642BCPZRL7-210 产品状态: 量产 LFCSP:LEADFRM CHIP SCALE 32 工业 Reel, 1500 $ 75.95 $ 64.56
AD9642BCPZRL7-250 产品状态: 量产 LFCSP:LEADFRM CHIP SCALE 32 工业 Reel, 1500 $ 91.00 $ 77.35
AD9642 应用技术支持与电子电路设计开发资源下载
  1. AD9642 数据手册DataSheet下载 .pdf
  2. Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
  3. ADC模数转换器选型指南 . pdf