SNOSCY5B August   2014  – April 2015 FDC1004

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Typical Application
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristicsnote to Electrical Characteristics table
    6. 7.6 I2C Interface Voltage Level
    7. 7.7 I2C Interface Timing
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 The Shield
      2. 8.3.2 The CAPDAC
      3. 8.3.3 Capacitive System Offset Calibration
      4. 8.3.4 Capacitive Gain Calibration
    4. 8.4 Device Functional Modes
      1. 8.4.1 Single Ended Measurement
      2. 8.4.2 Differential Measurement
    5. 8.5 Programming
      1. 8.5.1 Serial Bus Address
      2. 8.5.2 Read/Write Operations
      3. 8.5.3 Device Usage
        1. 8.5.3.1 Measurement Configuration
        2. 8.5.3.2 Triggering Measurements
        3. 8.5.3.3 Wait for Measurement Completion
        4. 8.5.3.4 Read of Measurement Result
    6. 8.6 Register Maps
      1. 8.6.1 Registers
        1. 8.6.1.1 Capacitive Measurement Registers
      2. 8.6.2 Measurement Configuration Registers
      3. 8.6.3 FDC Configuration Register
      4. 8.6.4 Offset Calibration Registers
      5. 8.6.5 Gain Calibration Registers
      6. 8.6.6 Manufacturer ID Register
      7. 8.6.7 Device ID Register
  9. 9 Applications and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Liquid Level Sensor
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Performance Plot
    3. 9.3 Do's and Don'ts
    4. 9.4 Initialization Set Up
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

10 Power Supply Recommendations

The FDC1004 requires a voltage supply within 3 V and 3.6 V. Two multilayer ceramic bypass X7R capacitors of 0.1 μF and 1 μF, respectively between VDD and GND pin are recommended. The 0.1-μF capacitor should be closer to the VDD pin than the 1-μF capacitor.