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dsPIC33A 12-bit 40MSPS Analog-to-Digital Converter (ADC) Deep Dive

Last modified by Microchip on 2026/03/31 08:13

The dsPIC33AK512MPS512 family of devices has 5 high-speed (40 MSPs), 12-bit Analog-to-Digital Converters (ADCs) that feature low conversion latency, high resolution, and oversampling capabilities to improve performance in AC/DC and DC/DC power converters, as well as general-purpose Digital Signal Processing (DSP) applications.

This new ADC architecture not only enhances existing features and operating modes, it also offers significantly greater flexibility and customization. This enables you to tailor the ADC’s performance to meet the specific requirements of your application with greater precision and efficiency.

dsPIC33AK512MPS510

Comparing the dsPIC33A ADC to the previous dsPIC33C ADC, several key improvements stand out:

  • Reduced latency:
    • The dsPIC33A ADC delivers significantly lower conversion latency, enabling faster and more responsive signal processing.
  • Improved high-impedance signal handling:
    • It is optimized to work effectively with signal sources that have much higher impedance, broadening its compatibility and application range.
  • Flexible sampling times:
    • The new architecture allows you to set a unique sampling time for each input channel, providing precise control and optimization for varying signal types.
  • Expanded resources:
    • The dsPIC33A ADC features a greater number of result accumulators and comparators, supporting more complex and demanding processing tasks.

Training Goal

The goal of this training is to provide the foundational knowledge and practical skills necessary to confidently integrate and utilize this ADC in your upcoming dsPIC33A development projects.

By the end of this training, you will have a thorough understanding of the following topics:

  • Key features and capabilities of the ADC
  • What a data channel is and its relationship to an analog input
  • Supported sampling modes and their benefits
  • Supported conversion trigger types and their advantages
  • Key performance and timing components
  • Key Direct Memory Access (DMA) and interrupt features
  • Additional reference materials to enhance your knowledge journey