PIC16F887I-PT Datasheet, PDF (267/338 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers

PIC16F882/883/884/886/887
TABLE 17-10: PIC16F882/883/884/886/887 A/D CONVERTER (ADC) CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  TA  +125°C
Param
No.
Sym.
Characteristic
Min. Typ†
Max. Units
Conditions
AD01 NR Resolution
—
—
10 bits bit
AD02 EIL Integral Error
—
—
±1
LSb VREF = 5.12V
AD03 EDL Differential Error
—
—
±1 LSb No missing codes to 10 bits
VREF = 5.12V
AD04 EOFF Offset Error
0
+1.5
+3.0 LSb VREF = 5.12V
AD07 EGN Gain Error
—
—
AD06 VREF Reference Voltage⁽³⁾
2.2
—
AD06A
2.7
±1
LSb VREF = 5.12V
—
V
VDD
Absolute minimum to ensure 1 LSb
accuracy
AD07 VAIN Full-Scale Range
VSS
—
VREF
V
AD08 ZAIN Recommended
—
—
10
k
Impedance of Analog
Voltage Source
AD09* IREF VREF Input Current⁽³⁾
10
—
1000 A During VAIN acquisition.
Based on differential of VHOLD to VAIN.
—
—
50
A During A/D conversion cycle.
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5.0V, 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 A/D conversion result never decreases with an increase in the input voltage and has no missing
codes.
3: ADC VREF is from external VREF or VDD pin, whichever is selected as reference input.
4: When ADC is off, it will not consume any current other than leakage current. The power-down current
specification includes any such leakage from the ADC module.
 2006-2012 Microchip Technology Inc.
DS41291G-page 267