Microchip Technology MA240017 Data Sheet
PIC24F16KA102 FAMILY
DS39927C-page 174
2008-2011 Microchip Technology Inc.
FIGURE 22-1:
10-BIT HIGH-SPEED A/D CONVERTER BLOCK DIAGRAM
Comparator
10-Bit SAR
Conversion Logic
V
REF
+
DAC
AN12
AN10
AN11
AN4
AN5
AN0
AN1
AN2
AN3
V
REF
-
Sample Control
S/H
AV
SS
AV
DD
ADC1BUF0:
ADC1BUFF
AD1CON1
AD1CON2
AD1CON3
AD1CHS
AD1PCFG
Control Logic
Data Formatting
Input MUX Control
Conversion Control
Pin Config Control
Internal Data Bus
16
V
R
+
V
R
-
MU
X
A
MU
X
B
V
INH
V
INL
V
INH
V
INH
V
INL
V
INL
V
BG
V
BG
/2
AD1CSSL
V
R
+
V
R
-
V
R
Se
le
ct
AN1
AN1