PIC18F2220 MICROCHIP [Microchip Technology], PIC18F2220 Datasheet - Page 343
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PIC18F2220
Manufacturer Part Number
PIC18F2220
Description
28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC18F2220.pdf
(388 pages)
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TABLE 26-24: A/D CONVERTER CHARACTERISTICS: PIC18F2220/2320/4220/4320 (INDUSTRIAL)
2003 Microchip Technology Inc.
Param
A01
A03
A04
A06
A07
A10
A20
A21
A22
A25
A28
A29
A30
A40
A50
Note 1:
No.
2:
3:
4:
5:
Symbol
N
E
E
E
E
—
V
V
V
AV
AV
Z
I
I
AD
REF
V
AIN
AIN
IL
DL
OFF
GN
REFH
REFL
R
REF
DD
SS
When A/D is off, it will not consume any current other than minor leakage current. The power-down current
spec includes any such leakage from the A/D module.
The A/D conversion result never decreases with an increase in the input voltage and has no missing
codes.
V
V
Assume quiet environment. If adjacent pins have high-frequency signals (analog or digital), Z
to be reduced to as low as 1 k to fight crosstalk effects.
For guidance only.
REFH
REFL
Resolution
Integral Linearity Error
Differential Linearity Error
Offset Error
Gain Error
Monotonicity
Reference Voltage Range
(V
Reference Voltage High
Reference Voltage Low
Analog Input Voltage
Analog Supply Voltage
Analog Supply Voltage
Recommended Impedance of
Analog Voltage Source
A/D Current
from V
V
current is from RA2/AN2/V
current is from RA3/AN3/V
REF
REFH
Input Current
DD
– V
Characteristic
REFL
)
PIC18FXX20
PIC18LFXX20
(3)
REF
REF
PIC18F2220/2320/4220/4320
- pin or AV
+ pin or AV
AV
AV
V
V
SS
SS
DD
SS
V
Min
REFL
—
—
—
—
—
—
—
—
—
—
3
+ 3.0V
– 0.3V
– 0.3
– 0.3
SS
DD
guaranteed
, whichever is selected as the V
, whichever is selected as the V
Typ
PIC18F2220/2320/4220/4320 (EXTENDED)
PIC18LF2220/2320/4220/4320 (INDUSTRIAL)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
(2)
AV
AV
AV
V
V
DD
±150
DD
DD
DD
SS
V
180
2.5
90
±5
Max
<±1
<±1
<±1
<±1
REFH
10
– AV
+ 0.3V
– 3.0V
+ 0.3
+ 0.3
(5)
(5)
(4)
(5)
(5)
SS
Units
LSb
LSb
LSb
LSb
k
bit
—
V
V
V
V
V
V
A
A
A
A
REFL
For 10-bit resolution
For 10-bit resolution
For 10-bit resolution
Tie to V
Tie to V
Average current during
conversion
During V
During A/D conversion
cycle.
REFH
V
V
V
V
V
REF
REF
REF
REF
REF
source.
DS39599C-page 341
Conditions
source.
DD
SS
AIN
3.0V
3.0V
3.0V
3.0V
3.0V
AIN
(1)
acquisition.
may need
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