SBASAQ4A june   2023  – august 2023 AMC3311-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  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
    5. 6.5  Power Ratings
    6. 6.6  Insulation Specifications
    7. 6.7  Safety-Related Certifications
    8. 6.8  Safety Limiting Values
    9. 6.9  Electrical Characteristics
    10. 6.10 Switching Characteristics
    11. 6.11 Timing Diagram
    12. 6.12 Insulation Characteristics Curves
    13. 6.13 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. 7.3.4 Isolated DC/DC Converter
      5. 7.3.5 Diagnostic Output and Fail-Safe Behavior
    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 Device Support
      1. 9.1.1 Device Nomenclature
    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. 10Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.3.3 Analog Output

The AMC3311-Q1 provides a differential analog output on the OUTP and OUTN pins. For input voltages VIN in the range from –0.1 V to 2 V, the device provides a linear response with a nominal gain of 1. For example, for an input voltage of 2 V, the differential output voltage (VOUTP – VOUTN) is 2 V. At zero input (IN shorted to HGND), both pins output the same common-mode output voltage VCMout, as specified in the Electrical CharacteristicsElectrical CharacteristicsElectrical Characteristics table. For input voltages greater than 2 V but less than approximately 2.5 V, the differential output voltage continues to increase but with reduced linearity performance. The outputs saturate at a differential output voltage of VCLIPout, as shown in Figure 7-2, if the input voltage exceeds the VClipping value.

GUID-20230112-SS0I-CGWJ-W6MD-C2QTF6WB8HQC-low.svg Figure 7-2 Output Behavior of the AMC3311-Q1

The AMC3311-Q1 provides a fail-safe output that simplifies diagnostics on a system level. The fail-safe output is active when the integrated DC/DC converter or high-side LDO do not deliver the required supply voltage for the high-side of the device. Figure 7-3 and Figure 7-4 show the fail-safe output of the AMC3311-Q1, which is a negative differential output voltage value that does not occur under normal operating conditions. Use the maximum VFAILSAFE voltage specified in the Electrical CharacteristicsElectrical CharacteristicsElectrical Characteristics table as a reference value for the fail-safe detection on a system level.

GUID-81DCE6AF-7FB4-4A2D-94AE-13EBB37BF58F-low.gif Figure 7-3 Typical Negative Clipping Output of the AMC3311-Q1
GUID-A5B7641F-8D17-447D-AE21-75BAC6F9626D-low.gif Figure 7-4 Typical Fail-Safe Output of the AMC3311-Q1