PIC12CE67X
TABLE 12-8: A/D CONVERTER CHARACTERISTICS:
PIC12CE673-04 (COMMERCIAL, INDUSTRIAL, EXTENDED
(3)
)
)
)
)
(3)
(3)
(3)
PIC12CE673-10 (COMMERCIAL, INDUSTRIAL, EXTENDED
PIC12CE674-04 (COMMERCIAL, INDUSTRIAL, EXTENDED
PIC12CE674-10 (COMMERCIAL, INDUSTRIAL, EXTENDED
Parameter
No.
Sym Characteristic
Min
Typ†
Max
Units
Conditions
NR
Resolution
—
—
—
—
—
—
—
—
—
—
8-bits
—
—
—
—
—
VREF = VDD = 5.12V, VSS ≤ AIN ≤ VREF
(Notes 4,5)
NINT Integral error
less than
±1 LSb
VREF = VDD = 5.12V, VSS ≤ AIN ≤ VREF
(Notes 4,5)
NDIF Differential error
less than
±1 LSb
VREF = VDD = 5.12V, VSS ≤ AIN ≤ VREF
(Notes 4,5)
NFS
Full scale error
less than
±1 LSb
VREF = VDD = 5.12V, VSS ≤ AIN ≤ VREF
(Notes 4,5)
NOFF Offset error
less than
VREF = VDD = 5.12V, VSS ≤ AIN ≤ VREF
±1 LSb
(Notes 4,5)
—
Monotonicity
—
Typ
—
—
—
V
VSS ≤ AIN ≤ VREF
VREF Reference voltage
3.0V
VDD + 0.3
VREF + 0.3
10.0
VAIN Analog input voltage VSS - 0.3
—
V
ZAIN Recommended
impedance of analog
—
—
kΩ
voltage source
IAD
A/D conversion cur-
rent (VDD)
—
—
180
—
—
µA Average current consumption when
A/D is on. (Note 1)
IREF
VREF input current
(Note 2)
1
10
mA During sampling
µA All other times
*
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 GP1 pin or VDD pin, whichever is selected as reference input.
3: Extended operating range is Advance Information for this device.
4: These specifications apply if VREF = 3.0V and if VDD ≥ 3.0V. VIN must be between VSS and VREF
5: When using external VREF, VDD must be greater than 3V for +1 LSB accuracy. If VDD is less than 3V, you must
use internal VREF for +1 LSB.
1998 Microchip Technology Inc.
Preliminary
DS40181B-page 95
MICROCHIP [ MICROCHIP ]
