Datasheet

PIC12(L)F1840
DS41441B-page 344 Preliminary  2011 Microchip Technology Inc.
TABLE 30-9: PIC12(L)F1840 A/D CONVERSION REQUIREMENTS
FIGURE 30-12: PIC12(L)F1840 A/D CONVERSION TIMING (NORMAL MODE)
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  T
A  +125°C
Param
No.
Sym. Characteristic Min. Typ† Max. Units Conditions
AD130* T
AD A/D Clock Period 1.0 — 9.0 sTOSC-based
A/D Internal RC Oscillator
Period
1.0 1.6 6.0 s ADCS<1:0> = 11 (ADRC mode)
AD131 T
CNV Conversion Time (not including
Acquisition Time)
(1)
—11—TAD Set GO/DONE bit to conversion
complete
AD132* T
ACQ Acquisition Time — 5.0 — 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 T
CY cycle.
AD131
AD130
BSF ADCON0, GO
Q4
A/D CLK
A/D Data
ADRES
ADIF
GO
Sample
OLD_DATA
Sampling Stopped
DONE
NEW_DATA
765 3210
Note 1: If the A/D clock source is selected as RC, a time of T
CY is added before the A/D clock starts. This allows the
SLEEP instruction to be executed.
1 TCY
4
AD134
(TOSC/2
(1)
)
1 TCY
AD132