PIC16C62B/72A
TABLE 13-13: A/D CONVERTER CHARACTERISTICS:
PIC16C72A-04 (COMMERCIAL, INDUSTRIAL, EXTENDED)
PIC16C72A-20 (COMMERCIAL, INDUSTRIAL, EXTENDED)
PIC16LC72A-04 (COMMERCIAL, INDUSTRIAL)
Param Sym
No.
Characteristic
Min
—
—
—
—
—
—
—
Typ†
Max
8-bits
< ± 1
< ± 1
< ± 1
< ± 1
< ± 1
—
Units
Conditions
A01
A02
A03
A04
A05
A06
A10
NR
Resolution
—
bit
VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
EABS Total Absolute error
—
LSB VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
EIL
Integral linearity error
Differential linearity error
Full scale error
—
LSB VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
EDL
EFS
—
LSB VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
—
LSB VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
EOFF Offset error
Monotonicity
—
LSB VREF = VDD = 5.12V,
VSS ≤ VAIN ≤ VREF
—
guaranteed
(Note 3)
—
VSS ≤ VAIN ≤ VREF
A20
A25
A30
VREF Reference voltage
VAIN Analog input voltage
2.5V
VSS - 0.3
—
—
—
—
VDD + 0.3
VREF + 0.3
10.0
V
V
ZAIN Recommended impedance of
kΩ
analog voltage source
A40
A50
IAD
A/D conversion
current (VDD)
PIC16CXX
—
—
180
90
—
—
µA Average current con-
sumption when A/D is
on. (Note 1)
PIC16LCXX
µA
IREF VREF input current (Note 2)
10
—
1000
µA During VAIN acquisi-
tion. Based on differ-
ential of VHOLD to
VAIN to charge
CHOLD, see
—
—
10
µA Section 9.1.
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.
1998 Microchip Technology Inc.
Preliminary
DS35008B-page 101
MICROCHIP [ MICROCHIP ]
