SBASA35A June   2020  – October 2020 AMC3330-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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
  7. 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
  8. 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 What to Do and What Not to Do
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Device Nomenclature
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

7.3.3 Analog Output

The AMC3330-Q1 offers a differential analog output comprised of the OUTP and OUTN pins. For differential input voltages (VINP – VINN) in the range from –1 V to 1 V, the device provides a linear response with a nominal gain of 2. For example, for a differential input voltage of 1 V, the differential output voltage (VOUTP – VOUTN) is 2 V. At zero input (INP shorted to INN), both pins output the same voltage, VCMout, as specified in the Section 6.9 table. For absolute differential input voltages greater than 1.0 V but less than 1.25 V, the differential output voltage continues to increase in magnitude but with reduced linearity performance. The outputs saturate as shown in Figure 7-3 if the differential input voltage exceeds the VClipping value.

GUID-20201020-CA0I-TNXD-W6KN-FZDW5HKGHNWR-low.gif Figure 7-3 AMC3330-Q1 Output Behavior

The AMC3330-Q1 provides a fail-safe output that simplifies diagnostics on system level. The fail-safe output is active when the integrated DC/DC converter or hgh-side LDO don't deliver the required supply voltage for the high-side of the device. Figure 7-4 and Figure 7-5 illustrate the fail-safe output of the AMC3330-Q1 that is a negative differential output voltage value that does not occur under normal operating conditions. Use the maximum VFAILSAFE voltage specified in the Electrical Characteristics table as a reference value for the fail-safe detection on system level.

GUID-20200722-CA0I-BN7R-ML26-RXC7FWQ5FKLW-low.gif Figure 7-4 Typical Negative Clipping Output of the AMC3330-Q1
GUID-20200722-CA0I-T3T3-MCFH-KVPW0VMNQ49H-low.gif Figure 7-5 Typical Fail-Safe Output of the AMC3330-Q1