ZHCSDM9A December   2014  – March 2018 LDC1612 , LDC1614

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化原理图
      2.      测量精度与目标距离间的关系
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics - I2C
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Multi-Channel and Single Channel Operation
      2. 7.3.2 Adjustable Conversion Time
      3. 7.3.3 Sensor Startup and Glitch Configuration
      4. 7.3.4 Reference Clock
      5. 7.3.5 Sensor Current Drive Control
      6. 7.3.6 Device Status Monitoring
    4. 7.4 Device Functional Modes
      1. 7.4.1 Startup Mode
      2. 7.4.2 Sleep Mode (Configuration Mode)
      3. 7.4.3 Normal (Conversion) Mode
      4. 7.4.4 Shutdown Mode
        1. 7.4.4.1 Reset
    5. 7.5 Programming
      1. 7.5.1 I2C Interface Specifications
      2. 7.5.2 Pulses on I2C
      3. 7.5.3 Multi Register Data Readback
    6. 7.6 Register Maps
      1. 7.6.1  Register List
      2. 7.6.2  Address 0x00, DATA0_MSB
        1. Table 1. Address 0x00, DATA0_MSB Field Descriptions
      3. 7.6.3  Address 0x01, DATA0_LSB
        1. Table 2. Address 0x01 DATA0_LSB Field Descriptions
      4. 7.6.4  Address 0x02, DATA1_MSB
        1. Table 3. Address 0x02, DATA1_MSB Field Descriptions
      5. 7.6.5  Address 0x03, DATA1_LSB
        1. Table 4. Address 0x03, DATA1_LSB Field Descriptions
      6. 7.6.6  Address 0x04, DATA2_MSB (LDC1614 only)
        1. Table 5. Address 0x04, DATA2_MSB Field Descriptions
      7. 7.6.7  Address 0x05, DATA2_LSB (LDC1614 only)
        1. Table 6. Address 0x05 DATA2_LSB Field Descriptions
      8. 7.6.8  Address 0x06, DATA3_MSB (LDC1614 only)
        1. Table 7. Address 0x06, DATA3_MSB Field Descriptions
      9. 7.6.9  Address 0x07, DATA3_LSB (LDC1614 only)
        1. Table 8. Address 0x07 DATA3_LSB Field Descriptions
      10. 7.6.10 Address 0x08, RCOUNT0
        1. Table 9. Address 0x08, RCOUNT0 Field Descriptions
      11. 7.6.11 Address 0x09, RCOUNT1
        1. Table 10. Address 0x09, RCOUNT1 Field Descriptions
      12. 7.6.12 Address 0x0A, RCOUNT2 (LDC1614 only)
        1. Table 11. Address 0x0A, RCOUNT2 Field Descriptions
      13. 7.6.13 Address 0x0B, RCOUNT3 (LDC1614 only)
        1. Table 12. Address 0x0B, RCOUNT3 Field Descriptions
      14. 7.6.14 Address 0x0C, OFFSET0
        1. Table 13. OFFSET0 Field Descriptions
      15. 7.6.15 Address 0x0D, OFFSET1
        1. Table 14. Address 0x0D, OFFSET1 Field Descriptions
      16. 7.6.16 Address 0x0E, OFFSET2 (LDC1614 only)
        1. Table 15. Address 0x0E, OFFSET2 Field Descriptions
      17. 7.6.17 Address 0x0F, OFFSET3 (LDC1614 only)
        1. Table 16. Address 0x0F, OFFSET3 Field Descriptions
      18. 7.6.18 Address 0x10, SETTLECOUNT0
        1. Table 17. Address 0x10, SETTLECOUNT0 Field Descriptions
      19. 7.6.19 Address 0x11, SETTLECOUNT1
        1. Table 18. Address 0x11, SETTLECOUNT1 Field Descriptions
      20. 7.6.20 Address 0x12, SETTLECOUNT2 (LDC1614 only)
        1. Table 19. Address 0x12, SETTLECOUNT2 Field Descriptions
      21. 7.6.21 Address 0x13, SETTLECOUNT3 (LDC1614 only)
        1. Table 20. Address 0x13, SETTLECOUNT3 Field Descriptions
      22. 7.6.22 Address 0x14, CLOCK_DIVIDERS0
        1. Table 21. Address 0x14, CLOCK_DIVIDERS0 Field Descriptions
      23. 7.6.23 Address 0x15, CLOCK_DIVIDERS1
        1. Table 22. Address 0x15, CLOCK_DIVIDERS1 Field Descriptions
      24. 7.6.24 Address 0x16, CLOCK_DIVIDERS2 (LDC1614 only)
        1. Table 23. Address 0x16, CLOCK_DIVIDERS2 Field Descriptions
      25. 7.6.25 Address 0x17, CLOCK_DIVIDERS3 (LDC1614 only)
        1. Table 24. Address 0x17, CLOCK_DIVIDERS3
      26. 7.6.26 Address 0x18, STATUS
        1. Table 25. Address 0x18, STATUS Field Descriptions
      27. 7.6.27 Address 0x19, ERROR_CONFIG
        1. Table 26. Address 0x19, ERROR_CONFIG
      28. 7.6.28 Address 0x1A, CONFIG
        1. Table 27. Address 0x1A, CONFIG Field Descriptions
      29. 7.6.29 Address 0x1B, MUX_CONFIG
        1. Table 28. Address 0x1B, MUX_CONFIG Field Descriptions
      30. 7.6.30 Address 0x1C, RESET_DEV
        1. Table 29. Address 0x1C, RESET_DEV Field Descriptions
      31. 7.6.31 Address 0x1E, DRIVE_CURRENT0
        1. Table 30. Address 0x1E, DRIVE_CURRENT0 Field Descriptions
      32. 7.6.32 Address 0x1F, DRIVE_CURRENT1
        1. Table 31. Address 0x1F, DRIVE_CURRENT1 Field Descriptions
      33. 7.6.33 Address 0x20, DRIVE_CURRENT2 (LDC1614 only)
        1. Table 32. Address 0x20, DRIVE_CURRENT2 Field Descriptions
      34. 7.6.34 Address 0x21, DRIVE_CURRENT3 (LDC1614 only)
        1. Table 33. DRIVE_CURRENT3 Field Descriptions
      35. 7.6.35 Address 0x7E, MANUFACTURER_ID
        1. Table 34. Address 0x7E, MANUFACTURER_ID Field Descriptions
      36. 7.6.36 Address 0x7F, DEVICE_ID
        1. Table 35. Address 0x7F, DEVICE_ID Field Descriptions
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Conductive Objects in a Time-Varying EM Field
      2. 8.1.2 L-C Resonators
      3. 8.1.3 Multi-Channel and Single Channel Operation
        1. 8.1.3.1 Data Offset
      4. 8.1.4 Sensor Conversion Time
        1. 8.1.4.1 Settling Time
        2. 8.1.4.2 Sensor Activation
      5. 8.1.5 Sensor Current Drive Configuration
        1. 8.1.5.1 Inactive Channel Sensor Connections
        2. 8.1.5.2 Automatic IDRIVE Setting with RP_OVERRIDE_EN
        3. 8.1.5.3 Determining Sensor IDRIVE for an Unknown Sensor RP Using an Oscilloscope
        4. 8.1.5.4 Sensor Auto-Calibration Mode
        5. 8.1.5.5 Channel 0 High Current Drive
      6. 8.1.6 Clocking Architecture
      7. 8.1.7 Input Deglitch Filter
      8. 8.1.8 Device Status Registers
      9. 8.1.9 Multi-Channel Data Readback
    2. 8.2 Typical Application
      1. 8.2.1 System Sensing Functionality
      2. 8.2.2 Example Application
      3. 8.2.3 Design Requirements
      4. 8.2.4 Detailed Design Procedure
      5. 8.2.5 Recommended Initial Register Configuration Values
      6. 8.2.6 Application Curves
      7. 8.2.7 Inductor Self-Resonant Frequency
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 相关链接
    4. 11.4 接收文档更新通知
    5. 11.5 社区资源
    6. 11.6 商标
    7. 11.7 静电放电警告
    8. 11.8 术语表
  12. 12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

3 说明

LDC1612 和 LDC1614 分别是用于电感感应解决方案的 2 通道和 4 通道 28 位电感数字转换器 (LDC)。由于具备多个通道且支持远程感应，LDC1612 和 LDC1614 能以极低的成本和功耗实现高性能且可靠的电感感应。此类产品使用简便，仅需要传感器频率处于 1kHz 至 10MHz 的范围内即可开始工作。由于支持的传感器频率范围 1kHz 至 10MHz 较宽，因此还支持使用非常小的 PCB 线圈，从而进一步降低感测解决方案的成本和尺寸。

高分辨率通道可支持更大的感测范围，在两倍线圈直径范围外依然可保持良好的性能。良好匹配的通道支持差分与比率测量，因此，设计人员能够利用一个通道来补偿感测过程中的环境条件和老化条件，例如温度、湿度和机械漂移等。

得益于易用、低能耗、低系统成本等特性，这些产品有助于设计人员大幅提高现有传感解决方案的性能、可靠性和灵活性，并将全新的传感功能引入到了所有市场（尤其是消费品和工业应用）中的 产品。

这些器件可以通过 I2C 接口轻松进行配置。双通道 LDC1612 采用 WSON-12 封装，四通道 LDC1614 采用 WQFN-16 封装。

器件信息(1)

器件型号 封装 封装尺寸（标称值）
LDC1612 WSON-12 4mm × 4mm
LDC1614 WQFN-16 4mm × 4mm
  1. 如需了解所有可用封装，请参阅数据表末尾的可订购产品附录。