PIC12F629/675
TABLE 12-8: PIC12F675 A/D CONVERTER CHARACTERISTICS:
Param
No.
Sym
NR
Characteristic
Min
Typ†
Max
Units
Conditions
A0±
Resolution
—
—
—
—
±0 bits
±
bit
A02
EABS Total Absolute
Error*
LSb VREF = 5.0V
A03
A04
EIL
Integral Error
—
—
—
—
±
±
LSb VREF = 5.0V
EDL
Differential Error
LSb No missing codes to ±0 bits
VREF = 5.0V
A05
A06
A07
A±0
EFS
Full Scale Range
2.2*
—
—
5.5*
±
V
EOFF Offset Error
—
LSb VREF = 5.0V
LSb VREF = 5.0V
EGN
Gain Error
—
—
±
guaranteed(3)
—
Monotonicity
—
—
—
V
VSS ≤ VAIN ≤ VREF+
A20
A20A
VREF Reference Voltage
2.0
2.5
—
—
VDD + 0.3
Absolute minimum to ensure ±0-bit
accuracy
A2±
A25
A30
VREF Reference V High
(VDD or VREF)
VSS
VSS
—
—
—
—
VDD
VREF
±0
V
V
VAIN Analog Input
Voltage
ZAIN Recommended
Impedance of
Analog Voltage
Source
kΩ
A50
IREF
VREF Input
(2)
Current
±0
—
—
—
±000
±0
µA During VAIN acquisition.
Based on differential of VHOLD to VAIN.
µA During A/D conversion cycle.
*
These parameters are characterized but not tested.
Data in ‘Typ’ column is at 5.0V, 25°C unless otherwise stated. These parameters are for design guidance only
and are not tested.
†
Note 1: When A/D is off, it will not consume any current other than leakage current. The power-down current spec
includes any such leakage from the A/D module.
2: VREF current is from External VREF or VDD pin, whichever is selected as reference input.
3: The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
2003 Microchip Technology Inc.
DS41190C-page 101
MICROCHIP [ MICROCHIP ]
