SLLS965G July   2009  – October 2025 ISO7220A-Q1 , ISO7221A-Q1 , ISO7221C-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  Recommended Operating Conditions
    3. 5.3  Safety-Related Certifications
    4. 5.4  Thermal Information
    5. 5.5  Safety Limiting Values
    6. 5.6  Insulation Specifications
    7. 5.7  Electrical Characterstics
    8. 5.8  Electrical Characteristics
    9. 5.9  Electrical Characteristics
    10. 5.10 Electrical Charcteristics
    11. 5.11 Switching Characteristics
    12. 5.12 Switching Characteristics
    13. 5.13 Switching Characteristics
    14. 5.14 Switching Characteristics
    15. 5.15 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Insulation Lifetime
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
        1. 8.4.1.1 PCB Material
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Development Support
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2 Typical Application

The ISO7221x-Q1 family of devices can be used with Texas Instruments' mixed signal micro-controller, digital-to-analog converter, transformer driver, and voltage regulator to create an isolated 4- to 20-mA current loop.

ISO7220A-Q1 ISO7221A-Q1 ISO7221C-Q1 Isolated 4- to 20-mA Current Loop Figure 8-1 Isolated 4- to 20-mA Current Loop