17 40 MSPS Analog-to-Digital Converter (ADC)

dsPIC33AK512MP512 devices have five high-speed, 12-bit Analog-to-Digital Converters (ADC) that feature low conversion latency, high resolution and oversampling capabilities to improve performance in AC/DC and DC/DC power converters.

Each 40 MSPS Analog-to-Digital Converter (ADC) includes the following features:

• 12-bit Resolution
• Up to 40 MSPS Conversion Rate per Channel
• Up to 26 Analog Input Pins
• Up to 16 Conversion Channels
• Each Channel:
  • Can be assigned to any analog input (I/O pin or internal signal).
  • Can be set to a different sampling time.
  • Supports discrete configuration.
  • Can be configured as single-ended or differential.
  • Conversion result can be formatted as unsigned or signed.
  • Conversion result can be left-aligned (fraction format).
  • Has a separate 32-bit conversion result register.
• All Channels Support Four Sampling Modes:
  • Oversampling of multiple samples
  • Integration of multiple samples
  • Window (multiple samples accumulated when the gate signal is active).
  • Single conversion
• All channels have a digital comparator to detect when the conversion result is less than, greater than, in bounds or out of bounds for the configurable thresholds.
• Some channels have the second result accumulator which can be used for a filter implementation (refer to the specific device data sheet to see which channels have this feature).
• Band Gap Reference and Temperature Sensor Diode inputs via UREF outputs
• Operation during CPU Sleep and Idle Modes