Microchip Technology PIC12F1501, Manual

Page: 328 / 402


2011-2015 Microchip Technology Inc. DS40001609E-page 329
PIC16(L)F1508/9
TABLE 29-13: ANALOG-TO-DIGITAL CONVERTER (ADC) CHARACTERISTICS
(1,2,3)
Operating Conditions (unless otherwise stated)
V
DD
= 3.0V, T
A
= 25°C
Param.
No.
Sym. Characteristic Min. Typ† Max. Units Conditions
AD01 N
R
Resolution — — 10 bit
AD02 E
IL
Integral Error — ±1 ±1.7 LSb V
REF
= 3.0V
AD03 E
DL
Differential Error — ±1 ±1 LSb No missing codes
V
REF
= 3.0V
AD04 E
OFF
Offset Error — ±1 ±2.5 LSb V
REF
= 3.0V
AD05 E
GN
Gain Error — ±1 ±2.0 LSb V
REF
= 3.0V
AD06 V
REF
Reference Voltage 1.8 — V
DD
V V
REF
= (V
RPOS
- V
RNEG
) (
Note 4
)
AD07 V
AIN
Full-Scale Range V
SS
— V
REF
V
AD08 Z
AIN
Recommended Impedance of
Analog Voltage Source — — 10 k

Can go higher if external 0.01

F capacitor is
present on input pin.
* These parameters are characterized but not tested.
† Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not
tested.
Note 1:
Total Absolute Error includes integral, differential, offset and gain errors.
2:
The ADC conversion result never decreases with an increase in the input voltage and has no missing codes.
3:
See
Section 30.0 “DC and AC Characteristics Graphs and Charts”
for operating characterization.
4:
ADC V
REF
is selected by ADPREF<0> bit.