Datasheet

PIC16F882/883/884/886/887
DS41291G-page 268  2006-2012 Microchip Technology Inc.
TABLE 17-11: PIC16F882/883/884/886/887 A/D CONVERSION REQUIREMENTS
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 1.6 — 9.0 sTOSC-based, VREF 3.0V
3.0 — 9.0 sTOSC-based, VREF full range
A/D Internal RC
Oscillator Period 3.0 6.0 9.0 s
ADCS<1:0> = 11 (ADRC mode)
At V
DD = 2.5V
1.6 4.0 6.0 sAt VDD = 5.0V
AD131 TCNV Conversion Time
(not including
Acquisition Time)
(1)
—11—TAD Set GO/DONE bit to new data in A/D
Result register
AD132* TACQ Acquisition Time 11.5 — s
AD133* T
AMP Amplifier Settling Time — — 5 s
AD134 TGO Q4 to A/D Clock Start —
—
TOSC/2
TOSC/2 + TCY
—
—
—
— 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.
* 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: ADRESH and ADRESL registers may be read on the following T
CY cycle.
2: See Section 9.3 “A/D Acquisition Requirements” for minimum conditions.