31 DAC - 5-Bit Digital-to-Analog Converter

The Digital-to-Analog Converter supplies a variable voltage reference, ratiometric with the input source, with 32 selectable output levels.

The positive input source (VSOURCE+) of the DAC can be connected to:

  • FVR Buffer
  • External VREF+ pin
  • VDD supply voltage

The negative input source (VSOURCE-) of the DAC can be connected to:

  • External VREF- pin
  • VSS

The output of the DAC (DACx_output) can be selected as a reference voltage to the following:

  • Comparator positive input
  • ADC input channel
  • DACxOUT1 pin
  • DACxOUT2 pin

The Digital-to-Analog Converter (DAC) can be enabled by setting the EN bit.

Figure 31-1. Digital-to-Analog Converter Block Diagram