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PIC16F1508TESSQTO Datasheet(PDF) 135 Page - Microchip Technology

Part # PIC16F1508TESSQTO
Description  20-Pin Flash, 8-Bit Microcontrollers with nanoWatt XLP Technology
PDF  384 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F1508TESSQTO Datasheet(HTML) 135 Page - Microchip Technology

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 2011 Microchip Technology Inc.
Preliminary
DS41609A-page 135
PIC16(L)F1508/9
15.0 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 15-1 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 15-1:
ADC BLOCK DIAGRAM
VDD
VREF+
ADPREF = 10
ADPREF = 00
FVR Buffer1
Note 1:
When ADON = 0, all multiplexer inputs are disconnected.
ADON
GO/DONE
VSS
ADC
00000
00001
00010
00011
00100
00101
00111
00110
CHS<4:0>
AN0
VREF+/AN1
AN2
AN4
AN5
AN6
AN7
AN3
11111
ADRESH ADRESL
10
16
ADFM
0 = Left Justify
1 = Right Justify
DAC
11110
VREF- = VSS
VREF+
11101
Temp Indicator
Reserved
11100
Reserved
01100
01000
01001
01011
01010
AN8
AN9
AN10
AN11



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