ZHCSDB9C August   2013  – February 2017 ADS1120

PRODUCTION DATA.  

1. 1 特性
2. 2 应用
3. 3 说明
4. 4 修订历史记录
5. 5 Pin Configuration and 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 SPI Timing Requirements
   7. 6.7 SPI Switching Characteristics
   8. 6.8 Typical Characteristics
7. 7 Parameter Measurement Information
   1. 7.1 Noise Performance
8. 8 Detailed Description
   1. 8.1 Overview
   2. 8.2 Functional Block Diagram
   3. 8.3 Feature Description
      1. 8.3.1  Multiplexer
      2. 8.3.2  Low-Noise PGA
         1. 8.3.2.1 PGA Common-Mode Voltage Requirements
         2. 8.3.2.2 Bypassing the PGA
      3. 8.3.3  Modulator
      4. 8.3.4  Digital Filter
      5. 8.3.5  Output Data Rate
      6. 8.3.6  Voltage Reference
      7. 8.3.7  Clock Source
      8. 8.3.8  Excitation Current Sources
      9. 8.3.9  Low-Side Power Switch
      10. 8.3.10 Sensor Detection
      11. 8.3.11 System Monitor
      12. 8.3.12 Offset Calibration
      13. 8.3.13 Temperature Sensor
          1. 8.3.13.1 Converting from Temperature to Digital Codes
             1. 8.3.13.1.1 For Positive Temperatures (for Example, 50°C):
             2. 8.3.13.1.2 For Negative Temperatures (for Example, -25°C):
          2. 8.3.13.2 Converting from Digital Codes to Temperature
   4. 8.4 Device Functional Modes
      1. 8.4.1 Power-Up and Reset
      2. 8.4.2 Conversion Modes
         1. 8.4.2.1 Single-Shot Mode
         2. 8.4.2.2 Continuous Conversion Mode
      3. 8.4.3 Operating Modes
         1. 8.4.3.1 Normal Mode
         2. 8.4.3.2 Duty-Cycle Mode
         3. 8.4.3.3 Turbo Mode
         4. 8.4.3.4 Power-Down Mode
   5. 8.5 Programming
      1. 8.5.1 Serial Interface
         1. 8.5.1.1 Chip Select (CS)
         2. 8.5.1.2 Serial Clock (SCLK)
         3. 8.5.1.3 Data Ready (DRDY)
         4. 8.5.1.4 Data Input (DIN)
         5. 8.5.1.5 Data Output and Data Ready (DOUT/DRDY)
         6. 8.5.1.6 SPI Timeout
      2. 8.5.2 Data Format
      3. 8.5.3 Commands
         1. 8.5.3.1 RESET (0000 011x)
         2. 8.5.3.2 START/SYNC (0000 100x)
         3. 8.5.3.3 POWERDOWN (0000 001x)
         4. 8.5.3.4 RDATA (0001 xxxx)
         5. 8.5.3.5 RREG (0010 rrnn)
         6. 8.5.3.6 WREG (0100 rrnn)
      4. 8.5.4 Reading Data
      5. 8.5.5 Sending Commands
      6. 8.5.6 Interfacing with Multiple Devices
   6. 8.6 Register Map
      1. 8.6.1 Configuration Registers
         1. 8.6.1.1 Configuration Register 0 (offset = 00h) [reset = 00h]
         2. 8.6.1.2 Configuration Register 1 (offset = 01h) [reset = 00h]
         3. 8.6.1.3 Configuration Register 2 (offset = 02h) [reset = 00h]
         4. 8.6.1.4 Configuration Register 3 (offset = 03h) [reset = 00h]
9. 9 Application and Implementation
   1. 9.1 Application Information
      1. 9.1.1 Serial Interface Connections
      2. 9.1.2 Analog Input Filtering
      3. 9.1.3 External Reference and Ratiometric Measurements
      4. 9.1.4 Establishing a Proper Common-Mode Input Voltage
      5. 9.1.5 Unused Inputs and Outputs
      6. 9.1.6 Pseudo Code Example
   2. 9.2 Typical Applications
      1. 9.2.1 K-Type Thermocouple Measurement (-200°C to +1250°C)
         1. 9.2.1.1 Design Requirements
         2. 9.2.1.2 Detailed Design Procedure
         3. 9.2.1.3 Application Curves
      2. 9.2.2 3-Wire RTD Measurement (-200°C to +850°C)
         1. 9.2.2.1 Design Requirements
         2. 9.2.2.2 Detailed Design Procedure
            1. 9.2.2.2.1 Design Variations for 2-Wire and 4-Wire RTD Measurements
         3. 9.2.2.3 Application Curves
      3. 9.2.3 Resistive Bridge Measurement
         1. 9.2.3.1 Design Requirements
         2. 9.2.3.2 Detailed Design Procedure
10. 10Power Supply Recommendations
    1. 10.1 Power-Supply Sequencing
    2. 10.2 Power-Supply Ramp Rate
    3. 10.3 Power-Supply Decoupling
11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
12. 12器件和文档支持
    1. 12.1 文档支持
       1. 12.1.1 相关文档
    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