ZHCSDX2A June   2015  – June 2015 FDC2112 , FDC2114 , FDC2212 , FDC2214

PRODUCTION DATA.  

  1. 特性
  2. 应用
  3. 说明
  4. 修订历史记录
  5. 说明 (续)
  6. Device Comparison Table
  7. Pin Configuration and Functions
  8. Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Timing Requirements
    7. 8.7 Switching Characteristics - I2C
    8. 8.8 Typical Characteristics
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagrams
    3. 9.3 Feature Description
      1. 9.3.1 Clocking Architecture
      2. 9.3.2 Multi-Channel and Single-Channel Operation
        1. 9.3.2.1 Gain and Offset (FDC2112, FDC2114 only)
      3. 9.3.3 Current Drive Control Registers
      4. 9.3.4 Device Status Registers
      5. 9.3.5 Input Deglitch Filter
    4. 9.4 Device Functional Modes
      1. 9.4.1 Start-up Mode
      2. 9.4.2 Normal (Conversion) Mode
      3. 9.4.3 Sleep Mode
      4. 9.4.4 Shutdown Mode
        1. 9.4.4.1 Reset
    5. 9.5 Programming
      1. 9.5.1 I2C Interface Specifications
    6. 9.6 Register Maps
      1. 9.6.1  Register List
      2. 9.6.2  Address 0x00, DATA_CH0
      3. 9.6.3  Address 0x01, DATA_LSB_CH0 (FDC2212 / FDC2214 only)
      4. 9.6.4  Address 0x02, DATA_CH1
      5. 9.6.5  Address 0x03, DATA_LSB_CH1 (FDC2212 / FDC2214 only)
      6. 9.6.6  Address 0x04, DATA_CH2 (FDC2114, FDC2214 only)
      7. 9.6.7  Address 0x05, DATA_LSB_CH2 (FDC2214 only)
      8. 9.6.8  Address 0x06, DATA_CH3 (FDC2114, FDC2214 only)
      9. 9.6.9  Address 0x07, DATA_LSB_CH3 (FDC2214 only)
      10. 9.6.10 Address 0x08, RCOUNT_CH0
      11. 9.6.11 Address 0x09, RCOUNT_CH1
      12. 9.6.12 Address 0x0A, RCOUNT_CH2 (FDC2114, FDC2214 only)
      13. 9.6.13 Address 0x0B, RCOUNT_CH3 (FDC2114, FDC2214 only)
      14. 9.6.14 Address 0x0C, OFFSET_CH0 (FDC21112 / FDC2114 only)
      15. 9.6.15 Address 0x0D, OFFSET_CH1 (FDC21112 / FDC2114 only)
      16. 9.6.16 Address 0x0E, OFFSET_CH2 (FDC2114 only)
      17. 9.6.17 Address 0x0F, OFFSET_CH3 (FDC2114 only)
      18. 9.6.18 Address 0x10, SETTLECOUNT_CH0
      19. 9.6.19 Address 0x11, SETTLECOUNT_CH1
      20. 9.6.20 Address 0x12, SETTLECOUNT_CH2 (FDC2114, FDC2214 only)
      21. 9.6.21 Address 0x13, SETTLECOUNT_CH3 (FDC2114, FDC2214 only)
      22. 9.6.22 Address 0x14, CLOCK_DIVIDERS_CH0
      23. 9.6.23 Address 0x15, CLOCK_DIVIDERS_CH1
      24. 9.6.24 Address 0x16, CLOCK_DIVIDERS_CH2 (FDC2114, FDC2214 only)
      25. 9.6.25 Address 0x17, CLOCK_DIVIDERS_CH3 (FDC2114, FDC2214 only)
      26. 9.6.26 Address 0x18, STATUS
      27. 9.6.27 Address 0x19, ERROR_CONFIG
      28. 9.6.28 Address 0x1A, CONFIG
      29. 9.6.29 Address 0x1B, MUX_CONFIG
      30. 9.6.30 Address 0x1C, RESET_DEV
      31. 9.6.31 Address 0x1E, DRIVE_CURRENT_CH0
      32. 9.6.32 Address 0x1F, DRIVE_CURRENT_CH1
      33. 9.6.33 Address 0x20, DRIVE_CURRENT_CH2 (FDC2114 / FDC2214 only)
      34. 9.6.34 Address 0x21, DRIVE_CURRENT_CH3 (FDC2114 / FDC2214 only)
      35. 9.6.35 Address 0x7E, MANUFACTURER_ID
      36. 9.6.36 Address 0x7F, DEVICE_ID
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Sensor Configuration
      2. 10.1.2 Shield
    2. 10.2 Typical Application
      1. 10.2.1 Schematic
      2. 10.2.2 Design Requirements
      3. 10.2.3 Detailed Design Procedure
        1. 10.2.3.1 Application Performance Plot
        2. 10.2.3.2 Recommended Initial Register Configuration Values
        3. 10.2.3.3 Inductor Self-Resonant Frequency
      4. 10.2.4 Application Curves
      5. 10.2.5 Power-Cycled Applications
    3. 10.3 Do's and Don'ts
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13器件和文档支持
    1. 13.1 器件支持
      1. 13.1.1 Third-Party Products Disclaimer
    2. 13.2 相关链接
    3. 13.3 社区资源
    4. 13.4 商标
    5. 13.5 静电放电警告
    6. 13.6 Glossary
  14. 14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

特性

  • 抗电磁干扰 (EMI) 架构
  • 最高输出速率(每条有源通道):
    • 13.3ksps(FDC2112,FDC2114)
    • 4.08ksps(FDC2212,FDC2214)
  • 最大输入电容:250nF(10kHz 频率,1mH 电感时)
  • 传感器激励频率:10kHz 至 10MHz
  • 通道数:2 或 4
  • 分辨率:高达 28 位
  • 系统噪底:100sps 时为 0.3fF
  • 电源电压:2.7V 至 3.6V
  • 功耗:2.1mA(有源)
  • 低功耗休眠模式:35μA
  • 关断电流:200nA
  • 接口:I2C
  • 温度范围:-40°C 至 +125°C
  • space

应用

  • 接近传感器
  • 手势识别
  • 液位传感器(包括清洁剂、肥皂液和油墨等导电液体)
  • 碰撞避免
  • 雨、雾、冰、雪传感器
  • 汽车门及尾门一脚踢开传感器
  • 材料尺寸检测

说明

电容式传感是一种低功耗、低成本且高分辨率的非接触式感测技术, 适用于 从接近检测和手势识别到远程液位感测领域的各项应用。电容式传感系统中的传感器可以采用任意金属或导体,因此可实现高度灵活的低成本系统设计。

电容式传感应用灵敏度的主要限制因素 在于 传感器的噪声敏感性。FDC2x1x 采用创新型抗 EMI 架构,即使在高噪声环境中也能维持性能不变。

FDC2x1x 是面向电容式传感解决方案的抗噪声和 EMI、高分辨率、高速、多通道电容数字转换器系列。该系列器件采用基于窄带的创新型架构,可对噪声和干扰进行高度抑制,同时在高速条件下提供高分辨率。该系列器件支持宽激励频率范围,可为系统设计带来灵活性。宽频率范围对于导电液体(例如清洁剂、肥皂液和油墨)感测的可靠性特别有用。

器件信息(1)

器件型号 封装 封装尺寸(标称值)
FDC2112,FDC2212 WSON (DNT 12) 4.00mm x 4.00mm
FDC2114,FDC2214 WQFN (RGH 16) 4.00mm x 4.00mm
  1. 要了解所有可用封装,请见数据表末尾的可订购米6体育平台手机版_好二三四附录。

简化电路原理图

FDC2212 FDC2214 FDC2112 FDC2114 4_channel_block_snoscz5.gif