SBASB15 October   2024 AMC0380D-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5.   Device Comparison Table
  6. 4 Pin Configuration and Functions
  7. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Power Ratings
    6. 5.6  Insulation Specifications
    7. 5.7  Safety-Related Certifications
    8. 5.8  Safety Limiting Values
    9. 5.9  Electrical Characteristics
    10. 5.10 Switching Characteristics
    11. 5.11 Timing Diagram
  8. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Analog Input
      2. 6.3.2 Isolation Channel Signal Transmission
      3. 6.3.3 Analog Output
    4. 6.4 Device Functional Modes
  9. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Best Design Practices
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  10. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  11. 9 Revision History
  12. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Mechanical Data

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DFX|15
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.3.3 Analog Output

The AMC0380D-Q1 provides a differential analog output voltage on the OUTP and OUTN pins that is proportional to the input voltage. For input voltages in the range from VFSR, MIN to VFSR, MAX, the device has a linear response with an output voltage equal to:

Equation 1. (VOUTP – VOUTN) = VIN = VHVIN / Attenuation – VSNSN

At zero input, both pins output the same common-mode output voltage VCMout, as specified in the Electrical Characteristics table. For absolute input voltages greater than |VFSR | but less than |VClipping|, the differential output voltage continues to increase in magnitude, but with reduced linearity performance. The outputs saturate at a differential output voltage of VCLIPout, as shown in Figure 6-2, if the input voltage exceeds the VClipping value.

AMC0380D-Q1 Input to Output Transfer Curve of the AMC0380D-Q1 Figure 6-2 Input to Output Transfer Curve of the AMC0380D-Q1

The AMC0380D-Q1 output offers a fail-safe feature that simplifies diagnostics on a system level. Figure 6-2 shows the behavior in fail-safe mode, in which the AMC0380D-Q1 outputs a negative differential output voltage that does not occur under normal operating conditions. The fail-safe output is active:

  • When the high-side supply VDD1 of the AMC0380D-Q1 device is missing
  • When the high-side supply VDD1 falls below the undervoltage threshold VDD1UV

Use the maximum VFAILSAFE voltage specified in the Electrical Characteristics table as a reference value for fail-safe detection on a system level.