TIDUF65 March   2024

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 Consideration
   3. 2.3 Highlighted Products
      1. 2.3.1 TMCS1123
      2. 2.3.2 ADS7043
      3. 2.3.3 AMC1035
      4. 2.3.4 REF2033
9. 3System Design Theory
   1. 3.1 Hall-Effect Current Sensor Schematic Design
   2. 3.2 Analog-to-Digital Converter
      1. 3.2.1 Delta-Sigma Modulator
         1. 3.2.1.1 Common-Mode Voltage Limit
         2. 3.2.1.2 Input Filter
         3. 3.2.1.3 Interface to MCU
      2. 3.2.2 12-bit SAR ADC
         1. 3.2.2.1 Common-Mode Voltage Limit
         2. 3.2.2.2 Input Filter
         3. 3.2.2.3 Interface to MCU
   3. 3.3 Power Supply and Reference Voltage
10. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
    2. 4.2 Software Requirements
    3. 4.3 Test Setup
       1. 4.3.1 Precautions
    4. 4.4 Test Results
       1. 4.4.1 DC Performance
          1. 4.4.1.1 Output Voltage Noise and ENOB After A/D Conversion
          2. 4.4.1.2 Linearity and Temperature Drift
       2. 4.4.2 AC Performance
          1. 4.4.2.1 SNR Measurement
          2. 4.4.2.2 Latency Test
       3. 4.4.3 PWM Rejection
       4. 4.4.4 Overcurrent Response
       5. 4.4.5 Adjacent Current Rejection
       6. 4.4.6 Power Supply Rejection Ratio
       7. 4.4.7 Digital Interface
11. 5Performance Comparison with Competitor’s Device
    1. 5.1 Effective Number of Bits
    2. 5.2 Latency
    3. 5.3 PWM Rejection
12. 6Design and Documentation Support
    1. 6.1 Design Files
       1. 6.1.1 Schematics
       2. 6.1.2 BOM
       3. 6.1.3 PCB Layout Recommendations
          1. 6.1.3.1 Layout Prints
    2. 6.2 Tools and Software
    3. 6.3 Documentation Support
    4. 6.4 Support Resources
    5. 6.5 Trademarks
13. 7About the Author

Isolated Low Delay High PWM Rejection Hall Current Sense Reference Design With Digital Interface