PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 365

• Manufacturer Part Number: PIC18F2221
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

TABLE 26-24: A/D CONVERTER CHARACTERISTICS: PIC18F2221/2321/4221/4321 (INDUSTRIAL)
© 2007 Microchip Technology Inc.
Param
A01
A03
A04
A06
A07
A10
A20
A21
A22
A25
A30
A50
Note 1:
No.
2:
Symbol
N
E
E
E
E
—
ΔV
V
V
V
Z
I
REF
REFH
REFL
AIN
AIN
IL
DL
OFF
GN
R
REF
The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
V
V
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
Recommended Impedance of
Analog Voltage Source
V
current is from RA2/AN2/V
current is from RA3/AN3/V
REF
REFH
Input Current
– V
Characteristic
REFL
)
(2)
REF
REF
-/CV
+ pin or V
Preliminary
V
REF
SS
V
Min
1.8
REFL
—
—
—
—
—
—
—
—
—
– 0.3V
3
pin or V
DD
, whichever is selected as the V
Guaranteed
PIC18F4321 FAMILY
SS
PIC18LF2221/2321/4221/4321 (INDUSTRIAL)
Typ
, whichever is selected as the V
—
—
—
—
—
—
—
—
—
—
—
—
—
(1)
V
DD
V
<±1.5
Max
<±1
<±1
<±1
150
REFH
2.5
10
—
—
—
+ 3.0V
5
Units
LSb ΔV
LSb ΔV
LSb ΔV
LSb ΔV
kΩ
μA
μA
bit
—
V
V
V
V
V
REFH
ΔV
V
V
V
During V
During A/D conversion
cycle.
SS
DD
DD
REF
REF
REF
REF
REF
source.
REFL
DS39689E-page 363
≤
< 3.0V
≥ 3.0V
Conditions
V
≥ 3.0V
≥ 3.0V
≥ 3.0V
≥ 3.0V
≥ 3.0V
AIN
AIN
source.
acquisition.
≤
V
REF