TIDUFC1A November   2025  – February 2026

1.   1
2.   Description
3.   Resources
4.   Features
5.   Applications
6.   6
7. 1System Description
   1. 1.1 Key System Specifications
8. 2System Overview
   1. 2.1 Block Diagram
   2. 2.2 Design Considerations
   3. 2.3 Highlighted Products
      1. 2.3.1 ADS127L21B
      2. 2.3.2 REF81
      3. 2.3.3 REF54
      4. 2.3.4 RES21A
      5. 2.3.5 THP210
      6. 2.3.6 OPA828
9. 3System Design Theory
   1. 3.1 Range Selection
   2. 3.2 Linearity and Low-Noise Signal Chain
   3. 3.3 Calibration
   4. 3.4 Additional System Design Considerations
10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Description
       1. 4.1.1 PCB Interface
       2. 4.1.2 Input Multiplexer
       3. 4.1.3 Gain Multiplexer
       4. 4.1.4 Power Supplies
       5. 4.1.5 Clock Tree
    2. 4.2 Software Requirements
    3. 4.3 Test Setup
    4. 4.4 Test Results
       1. 4.4.1 Integral Nonlinearity Measurements
       2. 4.4.2 Noise Simulation
       3. 4.4.3 Noise Measurements
       4. 4.4.4 Conclusion
11. 5Design and Documentation Support
    1. 5.1 Design Files
       1. 5.1.1 Schematics
       2. 5.1.2 BOM
    2. 5.2 Tools
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
12. 6About the Author
13. 7Revision History