PIC24FV16KM204 FAMILY
DS33030A-page 210
Advance Information
2013 Microchip Technology Inc.
FIGURE 19-1:
12-BIT A/D CONVERTER BLOCK DIAGRAM
Comparator
10/12-Bit SAR
V
REF
+
DAC
AN20
AN21
AN8
AN9
AN4
AN5
AN6
AN7
AN0
AN1
AN2
AN3
V
REF
-
Sample Control
S/H
AV
SS
AV
DD
ADC1BUF0:
ADC1BUF17
AD1CON1
AD1CON2
AD1CON3
AD1CHS
AD1CHITL
AD1CHITH
Control Logic
Data Formatting
Input MUX Control
Conversion Control
Pin Config. Control
Internal
16
V
R
+
V
R
-
MU
X A
V
INH
V
INL
V
INH
V
INH
V
INL
V
INL
V
R
+
V
R
-
V
R
Se
le
ct
CTMU
V
BG
AD1CSSL
AD1CSSH
AVss
0.785 * V
DD
AV
DD
0.215 * V
DD
AD1CON5
CTMU
V
BG
Temp. Sensor
Data Bus
MU
X
B
Conversion Logic
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