SBASAR3B December   2024  – November 2025 AMC0311D

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information (D Package)
    5. 6.5  Thermal Information (DWV Package)
    6. 6.6  Power Ratings 
    7. 6.7  Insulation Specifications (Basic Isolation)
    8. 6.8  Insulation Specifications (Reinforced Isolation)
    9. 6.9  Safety-Related Certifications (Basic Isolation)
    10. 6.10 Safety-Related Certifications (Reinforced Isolation)
    11. 6.11 Safety Limiting Values (D Package)
    12. 6.12 Safety Limiting Values (DWV Package)
    13. 6.13 Electrical Characteristics
    14. 6.14 Switching Characteristics
    15. 6.15 Timing Diagram
    16. 6.16 Insulation Characteristics Curves
    17. 6.17 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Analog Input
      2. 7.3.2 Isolation Channel Signal Transmission
      3. 7.3.3 Analog Output
    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
        1. 8.2.2.1 Input Filter Design
        2. 8.2.2.2 Differential to Single-Ended Output Conversion
      3. 8.2.3 Application Curve
    3. 8.3 Best Design Practices
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2.2.2 Differential to Single-Ended Output Conversion

Many systems use ADCs with single-ended inputs that cannot connect directly to the differential output of the AMC0x11D. Figure 8-3 shows a circuit for converting the differential output signal into a single-ended signal in front of the ADC. For R1 = R3 and R2 = R4, the output voltage equals (R2 / R1) × (VOUTP – VOUTN) + VREF. For C1 = C2 the bandwidth of the filter becomes 1 / (2 × π × C1 × R1). Configure the bandwidth of the filter to match the bandwidth requirement of the system. For best linearity, use capacitors with low voltage coefficients (such as NP0-type capacitors). For most applications, R1 = R2 = R3 = R4 = 3.3kΩ and C1 = C2 = 330pF yield good performance.

AMC0211D AMC0311D Connecting the AMC0x11D Output to a Single-Ended Input ADC Figure 8-3 Connecting the AMC0x11D Output to a Single-Ended Input ADC

The following reference guides provide further information on the general procedure to design the filtering and driving stages of SAR ADCs. These reference guides are available for download at www.ti.com.