PIC18F8520-I/PT Microchip Technology Inc., PIC18F8520-I/PT Datasheet - Page 342

• Manufacturer Part Number: PIC18F8520-I/PT
• Description: 80 PIN, 32 KB FLASH, 2048 RAM, 68 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F8520-I/PT

• A/d Inputs: 16-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 68
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 80-pin TQFP
• Programmable Memory: 32K Bytes
• Ram Size: 2K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part

PIC18F6520/8520/6620/8620/6720/8720
TABLE 26-25: A/D CONVERTER CHARACTERISTICS: PIC18FXX20 (INDUSTRIAL, EXTENDED)
FIGURE 26-26:
DS39609B-page 340
A01
A03
A04
A05
A06
A10
A20
A20A
A21
A22
A25
A30
A50
Note 1:
Param
No.
Note 1: If the A/D clock source is selected as RC, a time of T
A/D DATA
SAMPLE
2:
3:
4:
5:
A/D CLK
ADRES
BSF ADCON0, GO
N
E
E
E
E
—
V
V
V
V
Z
I
Symbol
REF
ADIF
2: This is a minimal RC delay (typically 100 ns), which also disconnects the holding capacitor from the analog input.
AIN
AIN
IL
DL
G
OFF
REF
REFH
REFL
R
GO
Vss
The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
For V
Maximum allowed impedance for analog voltage source is 10 k . This requires higher acquisition times.
IV
Q4
executed.
DD
– AV
DD
V
132
Resolution
Integral Linearity Error
Differential Linearity Error
Gain Error
Offset Error
Monotonicity
Reference Voltage
(V
Reference Voltage High
Reference Voltage Low
Analog Input Voltage
Recommended Impedance of
Analog Voltage Source
V
AIN
< 2.5V, V
REF
REFH
DD
A/D CONVERSION TIMING
I must be <3.0V and IAV
V
Input Current (Note 1)
REF
Characteristic
– V
AIN
REFL
(Note 2)
should be limited to <.5 V
)
9
8
OLD_DATA
SS
AV
AV
7
– V
SS
SS
AV
SS
1.8V
Min
CY
3V
– 0.3V
– 0.3V
—
—
—
—
—
—
—
—
. . .
SAMPLING STOPPED
I must be <0.3V.
SS
DD
is added before the A/D clock starts. This allows the SLEEP instruction to be
.
(5)
(5)
guaranteed
. . .
131
130
Typ
—
—
—
—
—
—
—
—
—
—
—
—
—
PIC18LFXX20 (INDUSTRIAL)
2
(2)
AV
AV
DD
DD
V
<±1.5
1
Max
<±1
<±1
<±1
150
REFH
2.5
+ 0.3V
10
—
—
5
+ 0.3V
(5)
0
Units
LSb V
LSb V
LSb V
LSb V
 2004 Microchip Technology Inc.
k
bit
—
V
V
V
V
V
A
A
V
V
V
V
(Note 4)
During V
During A/D conversion
cycle.
REF
REF
REF
REF
SS
DD
DD
DD
NEW_DATA
DONE
< 3.0V
= V
= V
= V
= V
V
3.0V
2.5V (Note 3)
Conditions
AIN
T
AIN
DD
DD
DD
DD
CY
= 5.0V
= 5.0V
= 5.0V
= 5.0V
acquisition.
V
REF