PIC16F722 Datasheet, PDF (231/302 Pages) Microchip Technology – 28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology

PIC16F72X/PIC16LF72X
TABLE 23-8: PIC16F72X 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 μs TOSC-based
A/D Internal RC Oscillator
Period
1.0
2.0
6.0 μs 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
—
μs
*
†
Note 1:
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.
The ADRES register may be read on the following TCY cycle.
FIGURE 23-12: PIC16F72X A/D CONVERSION TIMING (NORMAL MODE)
BSF ADCON0, GO
AD134
Q4
A/D CLK
(TOSC/2⁽¹⁾)
AD131
AD130
1 TCY
A/D Data
7
6
5
4
3
2
1
0
ADRES
OLD_DATA
NEW_DATA
ADIF
1 TCY
GO
Sample ^AD132
Sampling Stopped
DONE
Note 1: If the A/D clock source is selected as RC, a time of TCY is added before the A/D clock starts. This allows the
SLEEP instruction to be executed.
© 2009 Microchip Technology Inc.
DS41341E-page 231