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PIC18F66K22-I Datasheet, PDF (523/550 Pages) Microchip Technology – PIC18F87K22 Family Data Sheet | |||
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PIC18F87K22 FAMILY
TABLE 31-27: A/D CONVERTER CHARACTERISTICS: PIC18F87K22 FAMILY (INDUSTRIAL)
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
A01
A03
A04
A06
A07
A10
A20
A21
A22
A25
A30
A50
Note
NR Resolution
â
â
12
bit ïVREF ï³ 5.0V
EIL Integral Linearity Error
â
±1
±6.0
LSB ïVREF = 5.0V
EDL Differential Linearity Error
â
±1
+3.0/-1.0 LSB ïVREF = 5.0V
EOFF Offset Error
â
±1
±9.0
LSB ïVREF = 5.0V
EGN Gain Error
â
±1
±8.0
LSB ïVREF = 5.0V
â Monotonicity(1)
â
â
â
â VSS ï£ VAIN ï£ VREF
ïVREF Reference Voltage Range
3
(VREFH â VREFL)
â
VDD â VSS
V
VREFH Reference Voltage High
VSS + 3.0V
â
VDD + 0.3V
V
VREFL Reference Voltage Low
VSS â 0.3V
â
VDD â 3.0V
V
VAIN Analog Input Voltage
VREFL
â
VREFH
V
ZAIN Recommended
Impedance of Analog
Voltage Source
â
â
2.5
kï
IREF VREF Input Current(2)
â
â
5
ïA During VAIN acquisition
â
â
150
ïA During A/D conversion cycle
1: The A/D conversion result doesnât decrease with an increase in the input voltage.
2: VREFH current is from the RA3/AN3/VREF+ pin or VDD, whichever is selected as the VREFH source. VREFL current is from
the RA2/AN2/VREF- pin or VSS, whichever is selected as the VREFL source.
ï£ 2011 Microchip Technology Inc.
DS39960D-page 523
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