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© 2006-2012 Microchip Technology Inc.DS70183D-page 16-1

Analog-to-Digital

Converter (ADC)

16

Section 16. Analog-to-Digital Converter (ADC)

HIGHLIGHTS

This section of the manual contains the following major topics:

16.1Introduction.................................................................................................................. 16-2

16.2Control Registers.........................................................................................................16-6

16.3Overview of Sample and Conversion Sequence .......................................................16-17

16.4ADC Configuration.....................................................................................................16-27

16.5ADC Interrupt Generation..........................................................................................16-33

16.6Analog Input Selection for Conversion.......................................................................16-35

16.7Specifying Conversion Results Buffering for Devices with DMA................................16-44

16.8ADC Configuration Example......................................................................................16-48

16.9ADC Configuration for 1.1 Msps................................................................................16-49

16.10 Sample and Conversion Sequence Examples for Devices without DMA..................16-51

16.11Sample and Conversion Sequence Examples for Devices with DMA.......................16-63

16.12Analog-to-Digital Sampling Requirements.................................................................16-73

16.13Reading the ADC Result Buffer.................................................................................16-74

16.14 Transfer Functions.....................................................................................................16-76

16.15 ADC Accuracy/Error...................................................................................................16-78

16.16Connection Considerations........................................................................................16-78

16.17Operation During Sleep and Idle Modes....................................................................16-79

16.18Effects of a Reset.......................................................................................................16-79

16.19 Special Function Registers........................................................................................16-80

16.20 Design Tips................................................................................................................16-81

16.21Related Application Notes..........................................................................................16-82

16.22 Revision History.........................................................................................................16-83

Termékspecifikációk