© 2006 Microchip Technology Inc. DS70183A-page 16-1
16
Section 16. Analog-to-Digital Converter (ADC)
HIGHLIGHTS
This section of the manual contains the following major topics:
16.1 Introduction ..................................................................................................................16-2
16.2 Control Registers .........................................................................................................16-4
16.3 A/D Terminology and Conversion Sequence .............................................................16-14
16.4 ADC Module Configuration........................................................................................16-16
16.5 Selecting the Voltage Reference Source ...................................................................16-16
16.6 Selecting the A/D Conversion Clock..........................................................................16-17
16.7 Selecting Analog Inputs for Sampling........................................................................16-18
16.8 Enabling the Module..................................................................................................16-20
16.9 Specifying Sample/Conversion Control .....................................................................16-20
16.10 How to Start Sampling ...............................................................................................16-21
16.11 How to Stop Sampling and Start Conversions ...........................................................16-22
16.12 Controlling Sample/Conversion Operation.................................................................16-32
16.13 Specifying Conversion Results Buffering...................................................................16-33
16.14 Conversion Sequence Examples...............................................................................16-37
16.15 A/D Sampling Requirements......................................................................................16-49
16.16 Reading the ADC Result Buffer .................................................................................16-50
16.17 Transfer Function (10-bit Mode).................................................................................16-52
16.18 Transfer Function (12-bit Mode).................................................................................16-53
16.19 ADC Accuracy/Error...................................................................................................16-54
16.20 Connection Considerations........................................................................................16-54
16.21 Code Examples..........................................................................................................16-54
16.22 Operation During Sleep and Idle Modes....................................................................16-61
16.23 Effects of a Reset.......................................................................................................16-62
16.24 Special Function Registers Associated with the ADC................................................16-62
16.25 Design Tips................................................................................................................16-64
16.26 Related Application Notes..........................................................................................16-65
16.27 Revision History.........................................................................................................16-66
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