1 ADC Module Overview

The ADC² module consists of two main blocks: the acquisition/conversion block (ADC) and the computation block. The ADC block reads an analog signal and converts it into a digital number, while the computation block takes the converted digital number and applies post-processing functions.

The ADC block provides the following features:

• 13-bit Acquisition Timer
• Automatic Repeat and Sequencing:
  • Two result registers
  • Auto-conversion trigger
  • Automated double sample conversion for CVD
• Hardware Capacitive Voltage Divider (CVD) Support:
  • 13-bit Precharge Timer
  • Adjustable sampling capacitor array
  • Guard ring digital output drive

The Computation block provides the following features:

• Averaging and Low-Pass Filter Functions
• Reference Comparison
• 2-level Threshold Comparison
• Selectable Interrupts