SLVUDU6 April   2026

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Interfaces
      1. 2.1.1 Analog Input
      2. 2.1.2 EVM Output Configurations and Descriptions
      3. 2.1.3 Amplifier Output
        1. 2.1.3.1 Differential Output (Diff.)
        2. 2.1.3.2 Fixed Gain Single-Ended Output With Internal Reference (SE Int)
        3. 2.1.3.3 Fixed Gain Ratiometric Output With VDD Reference (R Int)
        4. 2.1.3.4 Single-ended and Ratiometric Output With External Reference (SE/R Ext)
      4. 2.1.4 Modulator Output
        1. 2.1.4.1 Internal Clock Modulator (Mod. Int.)
        2. 2.1.4.2 External Clock Modulator (Mod. Ext.)
    2. 2.2 VDD Power Supply
    3. 2.3 EVM Operation
      1. 2.3.1 Analog Input
      2. 2.3.2 Outputs and VDD Power
      3. 2.3.3 Test Procedure
        1. 2.3.3.1 Equipment Setup
        2. 2.3.3.2 Procedure
  9. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 PCB Layout
    3. 3.3 Bill of Materials
  10. 4Additional Information
    1. 4.1 Trademarks
  11. 5Related Documentation

2.3.3.2 Procedure

  1. Set the 5V (±10%) source and limit the current to 100mA as noted above. Connect the EVM voltage source to the connectors VDD pin referenced to GND. Turn on the power source and make sure there is no more than the specified current limit in the device data sheet drawn.
  2. Tie input to ground either externally with J1, soldering short R1, or tying INP = INN = HGND.
  3. Use the oscilloscope or the DMM to verify that isolated power is present on both VDD and VDDA2 supplies. Measure the output of the device referenced to GND and verify:
    1. For amplifiers: the isolated voltage is within the common-mode output voltage (typical 1.44V for differential output, REFIN/2 for single-ended output).
    2. For modulators using the oscilloscope: the digital output is a stream of ones and zeros that are high 50% of the time and low 50% of the time.
    3. For modulators using the DMM: the DMM is about 50% magnitude of VDD.
  4. CAUTION:
    AMC43xxDVVEVM
    The board can heat up under high power or improper use conditions. Contact can cause burns. Do not touch. Take the proper precautions when operating.
    CAUTION:
    AMC43xxDVVEVM
    Electric shocks are possible when connecting the board to high voltage inputs. The board must be handled with care by a professional. For safety, use of isolated test equipment with overvoltage or overcurrent protection is highly recommended.
    After removing the input short connection and depending on the mounted device, apply the appropriate DC full-scale linear input signal to INP or J1.1 with respect to INN = HGND.
  5. Measure the output with the oscilloscope or the DMM.
    1. For amplifiers using either the oscilloscope or the DMM: Verify that the output voltage reaches the full-scale output for the installed device.
      1. 2V FSR for differential amplifiers.
      2. REFIN FSR for single-ended amplifiers.
    2. For modulators using the oscilloscope: Verify that the digital output is proportional to the expected conversion.
      1. For a positive full scale linear input, the digital output must be high approximately 90% of the time.
    3. For modulators using the DMM: Verify that the digital output is proportional to the expected conversion. Apply a DC input signal.
      1. For a positive full scale linear input, the DMM reading needs to be approximately 90% magnitude of VDD.