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11.1 Overview of A/D Converter (Successive Approximation Type)
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A/D Converter Block Diagram
Figure 11.1-2 is an A/D converter block diagram.
Figure 11.1-2 Block Diagram of the A/D Converter
.
AVCC
AVR
AVSS
MPX
AN0
AN1
AN2
AN3
ADCR
ADCS
ATGX
R
|
B
U
S
Input circuit
Internal voltage
generator
Sample & hold circuit
Comparator
Successive
approximation
register
Decoder
Data register
Trigger activation
A/D control register
TIMO (internal connection)
[Reload timer channel 2]
Timer activation
Operating clock
(Peripheral clock)
Prescaler