Datasheet

PIC18(L)F2X/4XK22
DS41412F-page 346  2010-2012 Microchip Technology Inc.
FIGURE 22-1: DIGITAL-TO-ANALOG CONVERTER BLOCK DIAGRAM
FIGURE 22-2: VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
32-to-1 MUX
DACR<4:0>
R
VREF-
DACNSS
R
R
R
R
R
R
32
DAC Output
DACOUT
5
(to Comparators and
ADC Modules)
DACOE
VDD
VREF+
DACPSS<1:0>
2
DACEN
Steps
Digital-to-Analog Converter (DAC)
FVR BUF1
R
VSRC-
V
SRC+
VSS
DACLPS
11111
11110
00001
00000
1
0
Reserved 11
10
01
00
DACOUT
Buffered DAC Output
+
–
DAC
Module
Voltage
Reference
Output
Impedance
R
PIC
®
MCU