MA240026 Microchip Technology, MA240026 Datasheet - Page 173

• Manufacturer Part Number: MA240026
• Description: Daughter Cards & OEM Boards PIC24FJ16MC102 Plug-In Module
• Manufacturer: Microchip Technology

Specifications of MA240026

• Rohs: yes
• Data Bus Width: 16 bit
• Description/function: PIC24F 28 Pin QFN to 100 Pin Plug-in-Module
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 3 V to 3.6 V

19.0
The PIC24FJ16MC101/102 devices have up to six
ADC module input channels.
19.1
The 10-bit ADC configuration has the following key
features:
• Successive Approximation (SAR) conversion
• Conversion speeds of up to 1.1 Msps
• Up to six analog input pins
• Four Sample and Hold circuits for simultaneous
• Automatic Channel Scan mode
• Selectable conversion trigger source
• Selectable Buffer Fill modes
• Four result alignment options (signed/unsigned,
• Operation during CPU Sleep and Idle modes
• 16-word conversion result buffer
Depending on the particular device pinout, the ADC
can have up to six analog input pins, designated AN0
through AN5.
Block diagrams of the ADC module are shown in
Figure 19-1
© 2011 Microchip Technology Inc.
sampling of up to four analog input pins
fractional/integer)
Note 1: This data sheet summarizes the features
2: It
3: Some registers and associated bits
10-BIT ANALOG-TO-DIGITAL
CONVERTER (ADC)
Key Features
and
of the PIC24FJ16MC101/102 family of
devices. It is not intended to be a compre-
hensive reference source. To comple-
ment the information in this data sheet,
refer to Section 46. “10-bit Analog-to-
Digital Converter (ADC) with 4 Simul-
taneous Conversions” (DS39737) in
the “PIC24F Family Reference Manual”,
which is available from the Microchip web
site (www.microchip.com).
specifications in
cal Characteristics”
supercede any specifications that may be
provided in PIC24F Family Reference
Manual sections.
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization”
this data sheet for device-specific register
and bit information.
is
Figure
important
19-2.
Section 26.0 “Electri-
to
of this data sheet,
note
that
the
Preliminary
in
19.2
To configure the ADC module:
1.
2.
3.
4.
5.
6.
7.
8.
Select
(ADxPCFGH<15:0> or ADxPCFGL<15:0>).
Select voltage reference source to match
expected
(ADxCON2<15:13>).
Select the analog conversion clock to match the
desired data rate with the processor clock
(ADxCON3<7:0>).
Determine how many sample-and-hold chan-
nels
ADxPCFGH<15:0> or ADxPCFGL<15:0>).
Select
sequence
ADxCON3<12:8>).
Select the way conversion results are presented
in the buffer (ADxCON1<9:8>).
Turn on the ADC module (ADxCON1<15>).
Configure ADC interrupt (if required):
a)
b)
PIC24FJ16MC101/102
ADC Initialization
Clear the ADxIF bit.
Select the ADC interrupt priority.
will
the
port
be
range
appropriate
used
pins
(ADxCON1<7:5>
on
(ADxCON2<9:8>
as
sample/conversion
analog
DS39997B-page 173
analog
inputs
inputs
and
and