ZHCSK88A September   2010  – September 2019 ADS7947 , ADS7948 , ADS7949

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     ADS794x 方框图
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions: ADS794x (12-, 10-, 8-Bit)
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics: ADS7947 (12-Bit)
    6. 7.6  Electrical Characteristics: ADS7948 (10-Bit)
    7. 7.7  Electrical Characteristics: ADS7949 (8-Bit)
    8. 7.8  Timing Requirements
    9. 7.9  Switching Characteristics
    10. 7.10 Typical Characteristics: ADS7947, ADS7948, ADS7949
    11. 7.11 Typical Characteristics: ADS7947 (12-Bit)
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Multiplexer and ADC Input
      2. 8.3.2 Reference
      3. 8.3.3 Clock
      4. 8.3.4 ADC Transfer Function
      5. 8.3.5 Power-Down
    4. 8.4 Device Functional Modes
      1. 8.4.1 Device Operation
    5. 8.5 Programming
      1. 8.5.1 16-Clock Frame
      2. 8.5.2 32-Clock Frame
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Driving an ADC Without a Driving Op Amp
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 相关链接
    2. 12.2 接收文档更新通知
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

4 修订历史记录

Changes from * Revision (September 2010) to A Revision

  • Added 器件信息 表、ESD 额定值 表、建议运行条件 表、开关特性 表、功能方框图 部分特性 说明 部分、器件功能模式 部分、编程 部分、应用和实施 部分、电源建议 部分、布局 部分、器件和文档支持 部分以及机械、封装和可订购信息 部分Go
  • Changed 更改了文档标题Go
  • Changed 将整个文档中的 QFN 更改为 WQFNGo
  • Added 高分辨率、高吞吐量： “特性” 项目中的子项目Go
  • Changed 将温度范围 特性 项目符号从额定温度范围 更改为工作温度范围Go
  • Changed 更改了说明 部分的内容（为了清晰起见）并将具有固有采样保持 (S/H) 输入级的 ADC 更改为 ADCGo
  • Changed 更改了第 1 页的图片并添加了标题Go
  • Changed title of Family and Ordering Information to Device Comparison TableGo
  • Changed thermal symbols for RθJA, RθJC(top), RθJB, and RθJC(bot)Go
  • Deleted Full-scale input span, Absolute input range, External Reference, AVDD, and DVDD parameters and Temperature Range section from Electrical Characteristics: ADS7947 (12-Bit) tableGo
  • Deleted Full-scale input span, Absolute input range, External Reference, AVDD, and DVDD parameters and Temperature Range section from Electrical Characteristics: ADS7948 (10-Bit) table Go
  • Deleted Full-scale input span, Absolute input range, External Reference, AVDD, and DVDD parameters and Temperature Range section from Electrical Characteristics: ADS7949 (8-Bit) table Go
  • Changed Timing Requirements table: added section titles, moved switching parameters into Switching Characteristics table Go
  • Changed symbol for Pulse duration, SCLK low parameter from tW1 to tWLGo
  • Added symbol to SCLK frequency parameterGo
  • Changed title of PCB Layout/Schematic Guidelines to Layout and changed format of sectionGo
  • Changed Recommended ADC Schematic figureGo