
PIC18C601/801
DS39541A-page 292
Advance Information
2001 Microchip Technology Inc.
TABLE 22-22: A/D CONVERTER CHARACTERISTICS: PIC18C601/801 (INDUSTRIAL, EXTENDED)
PIC18LC601/801 (INDUSTRIAL)
Param
No.
Symbol
Characteristic
Min
Typ
Max
Units
Conditions
A01
NR
Resolution
—
10
TBD
bit
VREF = VDD
≥ 3.0V
VREF = VDD
< 3.0V
A03
EIL
Integral linearity error
—
<±1
TBD
LSb
VREF = VDD
≥ 3.0V
VREF = VDD
< 3.0V
A04
EDL
Differential linearity error
—
<±1
TBD
LSb
VREF = VDD
≥ 3.0V
VREF = VDD
< 3.0V
A05
EFS
Full scale error
—
<±1
TBD
LSb
VREF = VDD
≥ 3.0V
VREF = VDD
< 3.0V
A06
EOFF
Offset error
—
<±1
TBD
LSb
VREF = VDD
≥ 3.0V
VREF = VDD
< 3.0V
A10
—
Monotonicity
guaranteed(3)
—
VSS
≤ VAIN ≤ VREF
A20
VREF
Reference voltage
(VREFH - VREFL)
0
——
V
A20A
3
——
V
For 10-bit resolution
A21
VREFH
Reference voltage High
AVSS
—
AVDD + 0.3 V
V
A22
VREFL
Reference voltage Low
AVSS - 0.3 V
—
AVDD
V
A25
VAIN
Analog input voltage
AVSS - 0.3 V
—
VREF + 0.3 V
V
A30
ZAIN
Recommended impedance of
analog voltage source
——
10.0
k
A40
IAD
A/D conversion
current (VDD)
PIC18C601/801
—
180
—
A Average current
consumption when
A/D is on(1)
PIC18LC601/801
—
90
—
A
A50
IREF
VREF input current(2)
10
—
1000
10
A
During VAIN acquisition.
Based on differential of
VHOLD to VAIN. To
charge CHOLD, see
During A/D conversion
cycle.
Note 1: When A/D is off, it will not consume any current other than minor leakage current. The power-down current
spec includes any such leakage from the A/D module.
VREF current is from RA2/AN2/VREF- and RA3/AN3/VREF+ pins or AVDD and AVSS pins, whichever is
selected as reference input.
2: Vss
≤ VAIN ≤ VREF
3: The A/D conversion result either increases or remains constant as the analog input increases.