Datasheet

PIC12(L)F1501
DS40001615C-page 230  2011-2015 Microchip Technology Inc.
TABLE 27-14: ADC CONVERSION REQUIREMENTS
TABLE 27-15: COMPARATOR SPECIFICATIONS
(1)
Standard Operating Conditions (unless otherwise stated)
Param.
No.
Sym. Characteristic Min. Typ† Max. Units Conditions
AD130* T
AD ADC Clock Period (TADC)1.0—6.0sFOSC-based
ADC Internal FRC Oscillator Period (T
FRC)1.0 2.0 6.0s ADCS<2:0> = x11 (ADC FRC 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
AD133* T
HCD Holding Capacitor Disconnect Time —
—
1/2 TAD
1/2 TAD + 1TCY
—
—
FOSC-based
ADCS<2:0> = x11 (ADC FRC mode)
* 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.
Operating Conditions (unless otherwise stated)
V
DD = 3.0V, TA = 25°C
Param.
No.
Sym. Characteristics Min. Typ. Max. Units Comments
CM01 V
IOFF Input Offset Voltage — ±7.5 ±60 mV CxSP = 1,
V
ICM = VDD/2
CM02 V
ICM Input Common Mode Voltage 0 — VDD V
CM03 CMRR Common Mode Rejection Ration — 50 — dB
CM04A
T
RESP
(2)
Response Time Rising Edge — 400 800 ns CxSP = 1
CM04B Response Time Falling Edge — 200 400 ns CxSP = 1
CM04C Response Time Rising Edge — 1200 — ns CxSP = 0
CM04D Response Time Falling Edge — 550 — ns CxSP = 0
CM05* T
MC2OV Comparator Mode Change to
Output Valid
——10s
CM06 C
HYSTER Comparator Hysteresis — 25 — mV CxHYS = 1,
CxSP = 1
* These parameters are characterized but not tested.
Note 1: See Section 28.0 “DC and AC Characteristics Graphs and Charts” for operating characterization.
2: Response time measured with one comparator input at V
DD/2, while the other input transitions from VSS to
V
DD.