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Microchip Technology dsPIC30F - Page 433

Microchip Technology dsPIC30F
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© 2004 Microchip Technology Inc. DS70065C-page 18-3
Section 18. 12-bit A/D Converter
12-bit A/D
Converter
18
Figure 18-1: 12-bit High Speed A/D Block Diagram
Comparator
12-bit SAR Conversion Logic
VREF+
DAC
Data
16-word, 12-bit
Dual Port
RAM
Bus Interface
AN12
0000
0101
0111
1001
1101
1110
1111
1100
0001
0010
0011
0100
0110
1000
1010
1011
AN13
AN14
AN15
AN8
AN9
AN10
AN11
AN4
AN5
AN6
AN7
AN0
AN1
AN2
AN3
CH0
AN1
VREF-
VREF-
Sample/Sequence
Control
Sample
Input MUX
Control
Input
Switches
S/H
AVSS
AVDD
Format

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