Datasheet

 2011 Microchip Technology Inc. DS39932D-page 505
PIC18F46J11 FAMILY
TABLE 29-30: A/D CONVERTER CHARACTERISTICS: PIC18F46J11 FAMILY (INDUSTRIAL)
Param
No.
Symbol 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 — — <±3 LSb VREF  3.0V
A07 EGN Gain Error — — <±3.5 LSb VREF  3.0V
A10 Monotonicity Guaranteed
(1)
—VSS  VAIN  VREF
A20 VREF Reference Voltage Range
(V
REFH – VREFL)
2.0
3
—
—
—
—
V
V
V
DD  3.0V
V
DD  3.0V
A21 V
REFH Reference Voltage High VREFL —VDD + 0.3V V
A22 VREFL Reference Voltage Low VSS – 0.3V — VREFH V
A25 VAIN Analog Input Voltage VREFL —VREFH V
A30 Z
AIN Recommended Impedance of
Analog Voltage Source
——2.5k
A50 I
REF VREF Input Current
(2)
—
—
—
—
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: VREFH current is from RA3/AN3/VREF+/C1INB pin or VDD, whichever is selected as the VREFH source.
V
REFL current is from RA2/AN2/VREF-/CVREF/C2INB pin or VSS, whichever is selected as the VREFL source.