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PIC16F887I-PT Datasheet, PDF (268/338 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers | |||
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PIC16F882/883/884/886/887
TABLE 17-11: PIC16F882/883/884/886/887 A/D CONVERSION REQUIREMENTS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ï£ TA ï£ +125°C
Param
No.
Sym.
Characteristic
Min.
AD130* TAD A/D Clock Period
1.6
3.0
A/D Internal RC
Oscillator Period
3.0
1.6
AD131 TCNV Conversion Time
â
(not including
Acquisition Time)(1)
AD132* TACQ Acquisition Time
AD133* TAMP Amplifier Settling Time â
AD134 TGO Q4 to A/D Clock Start â
Typâ
â
â
6.0
4.0
11
11.5
â
TOSC/2
Max. Units
Conditions
9.0 ïs TOSC-based, VREF ï³ï 3.0V
9.0 ïs TOSC-based, VREF full range
ADCS<1:0> = 11 (ADRC mode)
9.0 ïs At VDD = 2.5V
6.0 ïs At VDD = 5.0V
â TAD Set GO/DONE bit to new data in A/D
Result register
â ïs
5 ïs
ââ
â TOSC/2 + TCY â
â 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.
* These parameters are characterized but not tested.
â Data in âTypâ 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 TCY cycle.
2: See Section 9.3 âA/D Acquisition Requirementsâ for minimum conditions.
DS41291G-page 268
ï£ 2006-2012 Microchip Technology Inc.
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