SBASAR6B October   2024  – October 2025 AMC0211R-Q1 , AMC0311R-Q1

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. 7.3.4 Reference Input
    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 Connecting the REFIN Pin
      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

7.3.4 Reference Input

The voltage applied to the REFIN pin determines the output voltage range of the OUT pin, as described in the Analog Output section.

The output buffer is linear in the range of 150mV < VOUT < (VDD2 – 250mV). With REFIN shorted to VDD2, the output becomes nonlinear for input voltages close to VClipping, MAX. Eventually the output voltage clips, because the output buffer requires a minimum headroom of 250mV to VDD2. The maximum linear, input-referred voltage that the output buffer supports is a function of VREFIN and is calculated as follows:

Equation 3. VIN, MAX = VOUT, MAX x VClipping, MAX / VREFIN

For a worst-case calculation, set VOUT, MAX = VDD2MIN – 250mV = 2.75V and VREFIN ≤ 3.0V (VREFIN cannot exceed VDD2). Under these worst-case assumptions, the output buffer supports an input voltage range up to 2.35V. This range is larger than the specified linear input voltage range of the device. Therefore, the reference voltage is not a limiting item.