PIC16F722A Datasheet, PDF (218/284 Pages) Microchip Technology – 28-Pin Flash Microcontrollers with nanoWatt XLP Technology

PIC16F/LF722A/723A
TABLE 23-7: PIC16F722A/723A 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
—
—
8
bit
AD02 EIL Integral Error
—
— ±1.7 LSb VREF = 3.0V
AD03 EDL Differential Error
—
—
±1 LSb No missing codes
VREF = 3.0V
AD04 EOFF Offset Error
—
— ±2.2 LSb VREF = 3.0V
AD05 EGN Gain Error
AD06 VREF Reference Voltage⁽³⁾
—
— ±1.5 LSb VREF = 3.0V
1.8
—
VDD V
AD07 VAIN Full-Scale Range
VSS
—
VREF V
AD08 ZAIN Recommended Impedance of
Analog Voltage Source
—
—
50 k Can go higher if external 0.01F capacitor is
present on input pin.
† 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 A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
3: 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.
TABLE 23-8: PIC16F722A/723A A/D CONVERSION REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  TA  +125°C
Param
No.
Sym.
Characteristic
Min.
Typ†
Max. Units
Conditions
AD130* TAD A/D Clock Period
1.0
—
9.0 s TOSC-based
A/D Internal RC Oscillator
Period
1.0
2.0
6.0 s ADCS<1:0> = 11 (ADRC mode)
AD131 TCNV Conversion Time (not including —
Acquisition Time)⁽¹⁾
10.5
— TAD Set GO/DONE bit to conversion
complete
AD132* TACQ Acquisition Time
—
1.0
—
s
* 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: The ADRES register may be read on the following TCY cycle.
DS41417A-page 218
 2010 Microchip Technology Inc.