Datasheet

PIC24FV32KA304 FAMILY
DS39995B-page 212  2011 Microchip Technology Inc.
FIGURE 22-1: 12-BIT A/D CONVERTER BLOCK DIAGRAM
Comparator
12-Bit SAR Conversion Logic
VREF+
DAC
AN14
AN15
AN8
AN9
AN4
AN5
AN6
AN7
AN0
AN1
AN2
AN3
VREF-
Sample Control
S/H
AVSS
AVDD
ADC1BUF0:
ADC1BUF17
AD1CON1
AD1CON2
AD1CON3
AD1CHS
AD1CHITL
AD1CHITH
Control Logic
Data Formatting
Input MUX Control
Conversion Control
Pin Config. Control
Internal Data Bus
16
VR+VR-
MUX A
MUX B
VINH
VINL
VINH
VINH
VINL
VINL
VR+
V
R-
VR Select
CTMU
VBG
AD1CSSL
AD1CSSH
AVss
0.785 *
AVDD
0.215 *
AD1CON5
CTMU
VBG
Temp. Sensor
VDD
VDD