Microchip Technology Microstick for the 5V PIC24F K-series DM240013-2 DM240013-2 Data Sheet

 2013 Microchip Technology Inc.

DS30003030B-page 209

The PIC24F 12-bit A/D Converter has the following key
features:
• Successive Approximation Register (SAR) 

Conversion

• Conversion Speeds of up to 100 ksps 
• Up to 32 Analog Input Channels (internal and 

external)

• Multiple Internal Reference Input Channels
• External Voltage Reference Input Pins
• Unipolar Differential Sample-and-Hold (S/H) 

Amplifier

• Automated Threshold Scan and Compare 

Operation to Pre-Evaluate Conversion Results

• Selectable Conversion Trigger Source
• Fixed-Length (one word per channel), 

Configurable Conversion Result Buffer

• Four Options for Results Alignment
• Configurable Interrupt Generation
• Operation During CPU Sleep and Idle modes

The 12-bit A/D Converter module is an enhanced
version of the 10-bit module offered in some PIC24
devices. Both modules are Successive Approximation
Register (SAR) converters at their cores, surrounded
by a range of hardware features for flexible
configuration. This version of the module extends
functionality by providing 12-bit resolution, a wider
range of automatic sampling options and tighter
integration with other analog modules, such as the
CTMU, and a configurable results buffer. There is a
legacy 10-bit mode on this A/D to allow the option to run
with lower resolution in order to obtain higher
throughput. This module also includes a unique
Threshold Detect feature that allows the module itself
to make simple decisions based on the conversion
results.
A simplified block diagram for the module is illustrated
in 

. 

This data sheet summarizes the features of
this group of PIC24F devices. It is not
intended to be a comprehensive reference
source. For more information on the 12-Bit
A/D Converter with Threshold Detect, refer
to the “PIC24F Family Reference Manual”,
“12-Bit A/D Converter with Threshold
Detect”

 (DS39739).