SBAU375 November   2021

 

  1.   Trademarks
  2. 1EVM Overview
    1. 1.1 Introduction
  3. 2Analog Interface
    1. 2.1 Analog Inputs
    2. 2.2 Comparator Outputs
  4. 3Power Supplies
    1. 3.1 VDD Inputs
  5. 4EVM Operation
    1. 4.1 Analog Inputs: J4
    2. 4.2 User Power: J1 and J2
    3. 4.3 Comparator Outputs: J3
    4. 4.4 Device Operation
  6. 5Layout, BOM, and Schematic
    1. 5.1 Layout
    2. 5.2 Bill of Materials (BOM)
    3. 5.3 Schematic

4.4 Device Operation

After the VDD1 and VDD2 power supplies are applied to the AMC23CxxEVM, the internal current source turns on, setting VREF to 255 mV, and the comparator outputs become active.

An analog input signal can be applied directly at screw terminal J4. See Figure 2-1 and Table 4-1 for details.

The digital comparator outputs are available at J3 and are pulled high to VDD2, or low to GND2 based on the analog input voltage relative to either the internal reference or to VREF, depending on the AMC23Cxx device being tested. See the corresponding AMC23Cxx device data sheet for a detailed description of the comparator output behavior.