PIC16F1938_13 Datasheet, PDF (166/488 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver

PIC16(L)F1938/9
FIGURE 17-1:
DIGITAL-TO-ANALOG CONVERTER BLOCK DIAGRAM
FVR BUFFER2
VDD
VREF+
DACPSS<1:0> ₂
DACEN
DACLPS
DACNSS
VREF-
VSS
Digital-to-Analog Converter (DAC)
VSOURCE+
R
R
R
R
R
32
Steps
R
R
R
DACR<4:0>
5
DAC Output
(to Comparator
and
ADC modules)
DACOUT
DACOE
VSOURCE-
FIGURE 17-2:
VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
PIC^® MCU
DAC
Module
R
Voltage
Reference
Output
Impedance
DACOUT
+
–
Buffered DAC Output
DS40001574C-page 166
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