Datasheet

© 2007 Microchip Technology Inc. DS41250F-page 273
PIC16F913/914/916/917/946
TABLE 19-9: PIC16F913/914/916/917/946 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 μsTOSC-based, VREF ≥ 3.0V
3.0 — 9.0 μsTOSC-based, VREF full range
A/D Internal RC
Oscillator Period 3.0 6.0 9.0 μs
ADCS<1:0> = 11 (ADRC mode)
At V
DD = 2.5V
1.6 4.0 6.0 μsAt VDD = 5.0V
AD131 T
CNV 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 — μs
AD133* T
AMP Amplifier Settling Time — — 5 μs
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 12.3 “A/D Acquisition Requirements” for minimum conditions.