ZHCSSK2D October   2006  – October 2024 XTR111

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configurations and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Explanation of Pin Functions
      2. 6.3.2 Dynamic Performance
      3. 6.3.3 External Current Limit
      4. 6.3.4 External MOSFET
      5. 6.3.5 Output Error Flag and Disable Input
      6. 6.3.6 Voltage Regulator
      7. 6.3.7 Level Shift of 0V Input and Transconductance Trim
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Input Voltage
      2. 7.1.2 Error Flag Delay
      3. 7.1.3 Voltage Output Configuration
      4. 7.1.4 4mA-to-20mA Output
    2. 7.2 Typical Applications
      1. 7.2.1 0mA–20mA Voltage-to-Current Converter
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curve
      2. 7.2.2 Additional Applications
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Package and Heat Dissipation
        2. 7.4.1.2 Thermal Pad Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 第三方米6体育平台手机版_好二三四免责声明
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 接收文档更新通知
    4. 8.4 支持资源
    5. 8.5 Trademarks
    6. 8.6 静电放电警告
    7. 8.7 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

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7.1.4 4mA-to-20mA Output

The XTR111 does not provide internal circuits to generate 4mA with 0V input signal. Figure 7-3 shows that the most common way to shift the input signal is a two-resistor network connected to a voltage reference and the signal source. This arrangement allows easy adjustment for overrange and underrange conditions. The example assumes a 5V reference (VREF) that equals the full-scale signal voltage and a signal span of 0V to 5V for 4mA-to-20mA (IMIN to IMAX) output.

The voltage regulator output or a more precise reference can be used as VREF. Observe the potential drift added by the drift of the resistors and the voltage reference.

XTR111 Resistive Divider for IMIN-to-IMAX Output (4mA to 20mA) With 0V to VFS Signal Source Figure 7-3 Resistive Divider for IMIN-to-IMAX Output (4mA to 20mA) With 0V to VFS Signal Source
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