Datasheet
PIC16(L)F1508/9
DS40001609B-page 342 2011-2013 Microchip Technology Inc.
TABLE 29-13: ANALOG-TO-DIGITAL CONVERTER (ADC) CHARACTERISTICS
(1,2,3,4)
Operating Conditions (unless otherwise stated)
V
DD = 3.0V, TA = 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 VREF = 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 VREF = 3.0V
AD05 E
GN Gain Error — ±1 ±2.0 LSb VREF = 3.0V
AD06 V
REF Reference Voltage 1.8 — VDD VVREF = (VREF+ minus VREF-)
AD07 V
AIN Full-Scale Range VSS —VREF V
AD08 Z
AIN Recommended Impedance of
Analog Voltage Source
—— 10k Can go higher if external 0.01F 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: ADC V
REF is from external VREF or the VDD pin, whichever is selected as reference input.
4: See Section 30.0 “DC and AC Characteristics Graphs and Charts” for operating characterization.