SBASAR0 December   2025 AMC0303M2510

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 Diagrams
    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 Modulator
      3. 7.3.3 Isolation Channel Signal Transmission
      4. 7.3.4 Digital Output
        1. 7.3.4.1 Output Behavior in Case of a Full-Scale Input
        2. 7.3.4.2 Output Behavior in Case of a Missing High-Side Supply
    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 Bitstream Filtering
      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
    1. 11.1 Mechanical Data

7.3.1 Analog Input

As shown in Figure 7-1, input of the AMC0x03M2510 has a fully differential, switched-capacitor circuit. The AMC0x03M2510 has a dynamic input impedance of 55kΩ at 10MHz.

The sampling capacitor is continuously charged and discharged with a frequency of fCLK. With the S1 switches closed, CIND charges to the voltage difference across VINP and VINN. For the discharge phase, both S1 switches open first and then both S2 switches close. CIND discharges to approximately AGND + 0.8V during this phase.

AMC0203M2510 AMC0303M2510 Equivalent Input CircuitFigure 7-1 Equivalent Input Circuit

The analog input range is tailored to directly accommodate a voltage drop across a shunt resistor used for current sensing. There are two restrictions on the analog input signals (INP and INN).

  • First, if the input voltage exceeds the input range specified in the Absolute Maximum Ratings table, limit the input current to the absolute maximum value. This is to prevent device input electrostatic discharge (ESD) diode damage due to high current.
  • Second, keep the differential analog input voltage within the specified full-scale range ( VFSR ) and input common-mode voltage range (VCM) ranges. VFSR and VCMare specified in the Recommended Operating Conditions table. The device noise and linearilty performance is guaranteed only in this range.