PIC18LF2X_13 Datasheet, PDF (464/560 Pages) Microchip Technology – PIC18(L)F2X/45K50 USB Flash MCU Product Brief

PIC18(L)F2X/4XK22
TABLE 27-22: A/D CONVERTER CHARACTERISTICS:PIC18(L)F2X/4XK22
PIC18(L)F2X/4XK22
Standard Operating Conditions (unless otherwise stated)
Operating temperature
Tested at +25°C
Param.
No.
Symbol
Characteristic
Min
Typ
Max
Units
Conditions
A01
A03
A04
A06
A07
A08
A20
A21
A22
A25
A30
Note:
NR
Resolution
—
—
10
bits VREF  3.0V
EIL
Integral Linearity Error
—
±0.5
±1
LSb VREF = 3.0V
EDL
Differential Linearity Error
—
±0.5
±1
LSb VREF  3.0V
EOFF Offset Error
—
±0.7
±2
LSb VREF  3.0V
EGN
Gain Error
—
±0.7
±2
LSb VREF  3.0V
ETOTL Total Error
—
±0.8
±3
LSb VREF  3.0V
VREF Reference Voltage Range
(VREFH – VREFL)
2
—
VDD
V
VREFH Reference Voltage High
VDD/2
—
VDD + 0.3 V
VREFL Reference Voltage Low
VSS – 0.3V —
VDD/2
V
VAIN
Analog Input Voltage
VREFL
—
VREFH
V
ZAIN Recommended Impedance of
—
—
Analog Voltage Source
3
k
The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
FIGURE 27-23: A/D CONVERSION TIMING
BSF ADCON0, GO
(Note 2)
131
Q4
130
A/D CLK ¹³²
A/D DATA
9
8 7 ^{.. . . . .} 2
1
0
ADRES
ADIF
GO
SAMPLE
OLD_DATA
SAMPLING STOPPED
NEW_DATA
TCY
DONE
Note 1: If the A/D clock source is selected as RC, a time of TCY is added before the A/D clock starts.
This allows the SLEEP instruction to be executed.
2: This is a minimal RC delay (typically 100 ns), which also disconnects the holding capacitor from the analog input.
DS41412F-page 464
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