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PIC16LF1824 Datasheet(PDF) 137 Page - Microchip Technology

Part # PIC16LF1824
Description  18/20/28-Pin Flash Microcontrollers with XLP Technology
PDF  440 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16LF1824 Datasheet(HTML) 137 Page - Microchip Technology

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 2011-2013 Microchip Technology Inc.
Preliminary
DS40001453D-page 137
PIC16(L)F1847
16.0 ANALOG-TO-DIGITAL
CONVERTER (ADC) MODULE
The
Analog-to-Digital
Converter
(ADC)
allows
conversion of an analog input signal to a 10-bit binary
representation of that signal. This device uses analog
inputs, which are multiplexed into a single sample and
hold circuit. The output of the sample and hold is
connected to the input of the converter. The converter
generates a 10-bit binary result via successive
approximation and stores the conversion result into the
ADC result registers (ADRESH:ADRESL register pair).
Figure 16-1 shows the block diagram of the ADC.
The ADC voltage reference is software selectable to be
either internally generated or externally supplied.
The ADC can generate an interrupt upon completion of
a conversion. This interrupt can be used to wake-up the
device from Sleep.
FIGURE 16-1:
ADC BLOCK DIAGRAM
DAC_output
VDD
VREF+
ADPREF = 10
ADPREF = 00
ADPREF = 11
FVR Buffer1
VSS
VREF-
ADNREF = 1
ADNREF = 0
Note:
When ADON = 0, all multiplexer inputs are disconnected.
ADON
GO/DONE
VSS
ADC
00000
00001
00010
00011
00100
00101
00111
00110
01000
01001
01010
01011
11110
CHS<4:0>
AN0
AN1
AN2
AN4
AN5
AN6
AN7
AN3
AN8
AN9
AN10
AN11
11111
ADRESH ADRESL
10
16
ADFM
0 = Left Justify
1 = Right Justify
Temp Indicator
11101
Ref+ Ref-



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