Datasheet

 2010 Microchip Technology Inc. DS39635C-page 387
PIC18F6310/6410/8310/8410
TABLE 27-25: A/D CONVERTER CHARACTERISTICS: PIC18F6310/6410/8310/8410 (INDUSTRIAL)
PIC18LF6310/6410/8310/8410 (INDUSTRIAL)
Param
No.
Sym Characteristic Min Typ Max Units Conditions
A01 N
R Resolution — — 10 bit VREF  3.0V
A03 EIL Integral Linearity Error — — <±1 LSb VREF  3.0V
A04 E
DL Differential Linearity Error — — <±1 LSb VREF  3.0V
A06 EOFF Offset Error — — <±1 LSb VREF  3.0V
A07 EGN Gain Error — — <±1 LSb VREF  3.0V
A10 — Monotonicity Guaranteed
(1)
—
A20 VREF Reference Voltage Range
(V
REFH – VREFL)
3—AV
DD – AVSS VVDD  3.0V
1.8 — VDD – VSS VVDD < 3.0V
A21 V
REFH Reference Voltage High AVSS + VREF —AVDD V For 10-bit resolution
A22 VREFL Reference Voltage Low AVSS —AVDD – VREF V For 10-bit resolution
A25 VAIN Analog Input Voltage VREFL —VREFH V
A28 AV
DD Analog Supply Voltage VDD – 0.3 — VDD + 0.3 V
A29 AVSS Analog Supply Voltage VSS – 0.3 — VSS + 0.3 V
A30 ZAIN Recommended Impedance of
Analog Voltage Source
——2.5k
A40 I
AD A/D Conversion
Current (V
DD)
PIC18FXXXX — 180 — A Average current
consumption when
A/D is on (Note 2)
PIC18LFXXXX — 90 — AV
DD = 2.0V;
Average current
consumption when
A/D is on (Note 2)
A50 I
REF VREF Input Current (Note 3) —
—
—
—
±5
±150
A
A
During VAIN acquisition.
During A/D conversion
cycle.
Note 1: The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
2: When A/D is off, it will not consume any current other than minor leakage current. The power-down current
specification includes any such leakage from the A/D module.
3: V
REFH current is from the RA3/AN3/VREF+ pin or AVDD, whichever is selected as the VREFH source.
V
REFL current is from the RA2/AN2/VREF- pin or AVSS, whichever is selected as the VREFL source.