Datasheet

 1997-2013 Microchip Technology Inc. DS30561C-page 105
PIC12C67X
TABLE 12-7: A/D CONVERTER CHARACTERISTICS:
PIC12C671/672-04/PIC12CE673/674-04 (COMMERCIAL, INDUSTRIAL, EXTENDED)
PIC12C671/672-10/PIC12CE673/674-10 (COMMERCIAL, INDUSTRIAL, EXTENDED)
PIC12LC671/672-04/PIC12LCE673/674-04 (COMMERCIAL, INDUSTRIAL)
Param
No.
Sym Characteristic Min Typ† Max Units Conditions
A01 NR Resolution — — 8-bits bit VREF = VDD = 5.12V,
V
SS  VAIN  VREF
A02 EABS Total absolute error — — < 1LSbVREF = VDD = 5.12V,
V
SS  VAIN  VREF
A03 EIL Integral linearity error — — < 1LSb
V
REF = VDD = 5.12V,
V
SS  VAIN  VREF
A04 EDL Differential linearity error — — < 1LSb
V
REF = VDD = 5.12V,
V
SS  VAIN  VREF
A05 EFS Full scale error — — < 1LSb
V
REF = VDD = 5.12V,
V
SS  VAIN  VREF
A06 EOFF Offset error — — < 1LSb
V
REF = VDD = 5.12V,
V
SS  VAIN  VREF
A10 — Monotonicity — guaranteed
(Note 3)
——
V
SS  VAIN  VREF
A20 VREF Reference voltage 2.5V — VDD + 0.3 V
A25 V
AIN Analog input voltage VSS - 0.3 — VREF + 0.3 V
A30 ZAIN Recommended impedance of
analog voltage source
——10.0k
A40 I
AD A/D conversion
current (V
DD)
PIC12C67X — 180 — A Average current con-
sumption when A/D is on.
(Note 1)
PIC12LC67X — 90 — A
A50 I
REF VREF input current (Note 2) 10
—
—
—
1000
10
A
A
During VAIN acquisition.
Based on differential of
VHOLD to VAIN to charge
C
HOLD, see Section 8.1.
During A/D Conversion
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: V
REF current is from GP1 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.