Microchip Technology AC244055 Data Sheet
PIC16(L)F1938/9
DS40001574C-page 166
2011-2013 Microchip Technology Inc.
FIGURE 17-1:
DIGITAL-TO-ANALOG CONVERTER BLOCK DIAGRAM
FIGURE 17-2:
VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
32-t
o
-1 MUX
DACR<4:0>
R
V
REF
-
DACNSS
R
R
R
R
R
R
32
DAC Output
DACOUT
5
(to Comparator
ADC modules)
DACOE
V
DD
V
REF
+
DACPSS<1:0>
2
DACEN
Steps
Digital-to-Analog Converter (DAC)
FVR BUFFER2
R
V
SOURCE-
V
SOURCE+
V
SS
DACLPS
and
DACOUT
Buffered DAC Output
+
–
–
DAC
Module
Module
Voltage
Reference
Output
Impedance
R
PIC
®
MCU