Datasheet

PIC24FJ64GA004 FAMILY
DS39881E-page 194  2010-2013 Microchip Technology Inc.
FIGURE 21-1: 10-BIT HIGH-SPEED A/D CONVERTER BLOCK DIAGRAM
Comparator
10-Bit SAR Conversion Logic
VREF+
DAC
AN12
AN8
(1)
AN9
AN10
AN11
AN4
AN5
AN6
(1)
AN7
(1)
AN0
AN1
AN2
AN3
VREF-
Sample Control
S/H
AVSS
AVDD
ADC1BUF0:
ADC1BUFF
AD1CON1
AD1CON2
AD1CON3
AD1CHS
AD1PCFG
AD1CSSL
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
Note 1: Analog Channels, AN6 through AN8, are available on 44-pin devices only.
2: Band Gap Voltage (V
BG) reference is internally connected to Analog Channel AN15, which does not appear on any pin.
VBG
(2)