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PIC16F1526 Datasheet(PDF) 149 Page - Microchip Technology

Part # PIC16F1526
Description  64-Pin Flash Microcontrollers with nanoWatt XLP Technology
PDF  354 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F1526 Datasheet(HTML) 149 Page - Microchip Technology

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 2011 Microchip Technology Inc.
Preliminary
DS41458A-page 149
PIC16(L)F1526/27
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
Note 1:
When ADON = 0, all multiplexer inputs are disconnected.
2:
See ADCON0 register (Example 16-1) for detailed analog channel selection per device.
Temp Indicator
VDD
VREF
ADPREF = 10
ADPREF = 00
ADPREF = 11
FVR Buffer1
ADON(1)
GO/DONE
VSS
ADC
00000
00001
00010
00011
11110
CHS<4:0>(2)
AN0
AN1
AN2
VREF+/AN3
11111
ADRESH ADRESL
10
16
ADFM
0
= Left Justify
1
= Right Justify
AN29
11101
00100
00101
00110
AN4
AN5
AN6



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