Datasheet

PIC18F1230/1330
DS39758D-page 292  2009 Microchip Technology Inc.
TABLE 23-14: A/D CONVERTER CHARACTERISTICS
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 — — < ±2 LSb VREF  3.0V
A07 EGN Gain Error — — < ±1 LSb VREF  3.0V
A10 — Monotonicity Guaranteed
(1)
—VSS  VAIN  VREF
A20 VREF Reference Voltage Range
(V
REF+ – VSS)
1.8
3
—
—
—
—
V
V
V
DD  3.0V
V
DD  3.0V
A21 V
REF+ Positive Reference Voltage VSS —VREF+V
A22 VREF- Negative Reference Voltage VSS – 0.3V — VDD – 3.0V —
A25 VAIN Analog Input Voltage VREF-— VREF+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: VREF+ current is from RA4/T0CKI/AN2/VREF+ pin or VDD, whichever is selected as the VREF+ source.