Microchip Technology MCU PIC PIC18F87K22-I/PTRSL TQFP-80 MCP PIC18F87K22-I/PTRSL Data Sheet
Product codes
PIC18F87K22-I/PTRSL
2011 Microchip Technology Inc.
DS39960D-page 523
PIC18F87K22 FAMILY
TABLE 31-27: A/D CONVERTER CHARACTERISTICS: PIC18F87K22 FAMILY (INDUSTRIAL)
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
A01
N
R
Resolution
—
—
12
bit
V
REF
5.0V
A03
E
IL
Integral Linearity Error
—
±1
±6.0
LSB
V
REF
= 5.0V
A04
E
DL
Differential Linearity Error
—
±1
+3.0/-1.0
LSB
V
REF
= 5.0V
A06
E
OFF
Offset Error
—
±1
±9.0
LSB
V
REF
= 5.0V
A07
E
GN
Gain Error
—
±1
±8.0
LSB
V
REF
= 5.0V
A10
—
Monotonicity
(
)
—
—
—
—
V
SS
V
AIN
V
REF
A20
V
REF
Reference Voltage Range
(V
(V
REFH
– V
REFL
)
3
—
V
DD
– V
SS
V
A21
V
REFH
Reference Voltage High
V
SS
+ 3.0V
—
V
DD
+ 0.3V
V
A22
V
REFL
Reference Voltage Low
V
SS
– 0.3V
—
V
DD
– 3.0V
V
A25
V
AIN
Analog Input Voltage
V
REFL
—
V
REFH
V
A30
Z
AIN
Recommended
Impedance of Analog
Voltage Source
Impedance of Analog
Voltage Source
—
—
2.5
k
A50
I
REF
V
REF
Input Current
(
—
—
—
—
—
—
5
150
A
A
A
During V
AIN
acquisition
During A/D conversion cycle
Note
1:
The A/D conversion result doesn’t decrease with an increase in the input voltage.
2:
V
REFH
current is from the RA3/AN3/V
REF
+ pin or V
DD
, whichever is selected as the V
REFH
source. V
REFL
current is from
the RA2/AN2/V
REF
- pin or V
SS
, whichever is selected as the V
REFL
source.