18 High-Speed, Low Latency ADC

The PIC32AK1216GC41064 family of devices have two 12-bit High-Speed Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) cores that feature low conversion latency, high resolution and oversampling capabilities to improve performance when used in motor controls, power supply converters and sensor-based applications.

Each ADC includes the following features:

  • 12-bit Resolution
  • Up to 40 Msps Conversion
  • Up to 22 Analog Input Pins
  • 20 Settings Channels. Each Channel:
    • Supports Discrete Configuration
    • Can be assigned to any analog input (I/O pin or internal signal)
    • Can be set to a different sampling time
    • 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 are 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, or in bounds or out of bounds for the configurable thresholds
  • Channels 17, 18 and 19 have a second result accumulator which can be used for a filter implementation
  • Operational during CPU Sleep and Idle modes
  • Band Gap Reference and Temperature Sensor Diode Inputs