
1998 Microchip Technology Inc.
Preliminary
DS35008B-page 101
PIC16C62B/72A
TABLE 13-13: A/D CONVERTER CHARACTERISTICS:
PIC16C72A-04 (COMMERCIAL, INDUSTRIAL, EXTENDED)
PIC16C72A-20 (COMMERCIAL, INDUSTRIAL, EXTENDED)
PIC16LC72A-04 (COMMERCIAL, INDUSTRIAL)
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
A01
NR
Resolution
—
8-bits
bit
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A02
EABS Total Absolute error
—
< ± 1
LSB
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A03
EIL
Integral linearity error
—
< ± 1
LSB
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A04
EDL
Differential linearity error
—
< ± 1
LSB
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A05
EFS
Full scale error
—
< ± 1
LSB
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A06
EOFF Offset error
—
< ± 1
LSB
VREF = VDD = 5.12V,
VSS
≤ VAIN ≤ VREF
A10
—
Monotonicity
—
guaranteed
(Note 3)
——
VSS
≤ VAIN ≤ VREF
A20
VREF Reference voltage
2.5V
—
VDD + 0.3
V
A25
VAIN
Analog input voltage
VSS - 0.3
—
VREF + 0.3
V
A30
ZAIN
Recommended impedance of
analog voltage source
——
10.0
k
A40
IAD
A/D conversion
current (VDD)
PIC16CXX
—180
—
A
Average current con-
sumption when A/D is
on. (Note 1)
PIC16LCXX
—90
—
A
A50
IREF
VREF input current (Note 2)
10
—
1000
10
A
During VAIN acquisi-
tion. Based on differ-
ential of VHOLD to
VAIN to charge
CHOLD, see
During A/D conver-
sion cycle
* These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 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 minor leakage current.
The power-down current spec includes any such leakage from the A/D module.
2: VREF current is from RA3 pin 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.