DSPIC30F3011 Microchip Technology Inc., DSPIC30F3011 Datasheet - Page 125
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DSPIC30F3011
Manufacturer Part Number
DSPIC30F3011
Description
Dspic30f3010/3011 Enhanced Flash 16-bit Digital Signal Controller
Manufacturer
Microchip Technology Inc.
Datasheet
1.DSPIC30F3011.pdf
(220 pages)
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19.0
The10-bit high-speed Analog-to-Digital Converter (ADC)
allows conversion of an analog input signal to a 10-bit
digital number. This module is based on a Successive
Approximation Register (SAR) architecture, and provides
a maximum sampling rate of 1 Msps. The ADC module
has 16 analog inputs which are multiplexed into four
sample and hold amplifiers. The output of the sample and
hold is the input into the converter, which generates the
result. The analog reference voltages are software
selectable to either the device supply voltage (AV
AV
ADC has a unique feature of being able to operate while
the device is in Sleep mode.
© 2007 Microchip Technology Inc.
Note: This data sheet summarizes features of this group
of dsPIC30F devices and is not intended to be a complete
reference source. For more information on the CPU,
peripherals, register descriptions and general device
functionality, refer to the “dsPIC30F Family Reference
Manual” (DS70046).
SS
) or the voltage level on the (V
10-BIT HIGH-SPEED ANALOG-
TO-DIGITAL CONVERTER
(ADC) MODULE
REF
+/V
REF
-) pin. The
Confidential
DD
/
The ADC module has six 16-bit registers:
• A/D Control register 1 (ADCON1)
• A/D Control register 2 (ADCON2)
• A/D Control register 3 (ADCON3)
• A/D Input Select register (ADCHS)
• A/D Port Configuration register (ADPCFG)
• A/D Input Scan Selection register (ADCSSL)
The ADCON1, ADCON2 and ADCON3 registers
control the operation of the ADC module. The ADCHS
register selects the input channels to be converted. The
ADPCFG register configures the port pins as analog
inputs or as digital I/O. The ADCSSL register selects
inputs for scanning.
The block diagram of the ADC module is shown in
Figure 19-1.
Note:
dsPIC30F3010/3011
The
SMPI<3:0>, BUFM and ALTS bits, as well
as the ADCON3 and ADCSSL registers,
must not be written to while ADON = 1.
This would lead to indeterminate results.
SSRC<2:0>,
ASAM,
DS70141D-page 123
SIMSAM,