DSPIC30F6014AT-20E/PF Microchip Technology, DSPIC30F6014AT-20E/PF Datasheet - Page 138

• Manufacturer Part Number: DSPIC30F6014AT-20E/PF
• Description: 16-bit MCU/DSP 30MIPS 144KB 80 TQFP 14x14x1mm T/R
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F6014AT-20E/PF

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: AC'97, Brown-out Detect/Reset, I²S, LVD, POR, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 144KB (48K x 24)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 16x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM300024 - KIT DEMO DSPICDEM 1.1DM300019 - BOARD DEMO DSPICDEM 80L STARTERDM300004-2 - BOARD DEMO DSPICDEM.NET 2DM300004-1 - BOARD DEMO DSPICDEM.NET 1AC164314 - MODULE SKT FOR PM3 80PFAC30F001 - MODULE SOCKET DSPIC30F 80TQFPXLT80PT2 - SOCKET TRANSITION ICE 80TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

dsPIC30F6011A/6012A/6013A/6014A
FIGURE 19-3:
19.8
The analog input model of the 12-bit ADC is shown in
Figure
function of the internal amplifier settling time and the
holding capacitor charge time.
For the ADC to meet its specified accuracy, the charge
holding capacitor (C
charge to the voltage level on the analog input pin. The
source impedance (R
(R
impedance combine to directly affect the time required
FIGURE 19-4:
DS70143E-page 138
IC
Instruction Execution BSET ADCON1, ASAM
) and the internal sampling switch (R
ADCBUF0
ADCBUF1
19-4. The total sampling time for the ADC is a
ADCLK
DONE
SAMP
ADC Acquisition Requirements
Note: C
Legend: C
VA
PIN
HOLD
Rs
S
value depends on device package and is not tested. Effect of C
CONVERTING 1 CHANNEL AT 200 KSPS, AUTO-SAMPLE START, 1 T
SAMPLING TIME
12-BIT ADC ANALOG INPUT MODEL
), the interconnect impedance
V
I leakage
R
R
C
ANx
) must be allowed to fully
PIN
T
IC
SS
HOLD
C
PIN
= 1 T
T
SAMP
= input capacitance
= threshold voltage
= leakage current at the pin due to
= interconnect resistance
= sampling switch resistance
= sample/hold capacitance (from DAC)
AD
various junctions
V
DD
V
V
T
T
= 0.6V
= 0.6V
= 14 T
SS
T
CONV
)
AD
R
I leakage
± 500 nA
= 1 T
T
IC
SAMP
≤ 250Ω
AD
to charge the capacitor C
impedance of the analog sources must therefore be
small enough to fully charge the holding capacitor
within the chosen sample time. To minimize the effects
of pin leakage currents on the accuracy of the ADC, the
maximum recommended source impedance, R
kΩ. After the analog input channel is selected
(changed), this sampling function must be completed
prior to starting the conversion. The internal holding
capacitor will be in a discharged state prior to each
sample operation.
Sampling
Switch
R
SS
= 14 T
PIN
T
CONV
R
negligible if Rs ≤ 2.5 kΩ.
SS
V
AD
SS
C
= DAC capacitance
= 18 pF
≤ 3 kΩ
HOLD
© 2011 Microchip Technology Inc.
HOLD
. The combined
AD
S
, is 2.5