Microchip Technology MA330025-1 Data Sheet
dsPIC33EPXXX(GP/MC/MU)806/810/814 and PIC24EPXXX(GP/GU)810/814
DS70616G-page 560
2009-2012 Microchip Technology Inc.
TABLE 32-57: ADC CONVERSION (12-BIT MODE) TIMING REQUIREMENTS
AC CHARACTERISTICS
)
(unless otherwise stated)
Operating temperature
Operating temperature
-40°C
T
A
+85°C for Industrial
-40°C
T
A
+125°C for Extended
Param. Symbol
Characteristic
Min.
Typ.
(
)
Max.
Units
Conditions
Clock Parameters
AD50
T
AD
ADC Clock Period
117.6
—
—
ns
AD51
t
RC
ADC Internal RC Oscillator
Period
Period
—
250
—
ns
Conversion Rate
AD55
t
CONV
Conversion Time
—
14 T
AD
ns
AD56
F
CNV
Throughput Rate
—
—
500
Ksps
AD57
T
SAMP
Sample Time
3 T
AD
—
—
—
Timing Parameters
AD60
t
PCS
Conversion Start from Sample
Trigger
Trigger
(
)
2 T
AD
—
3 T
AD
—
Auto-Convert Trigger
not selected
not selected
AD61
t
PSS
Sample Start from Setting
Sample (SAMP) bit
Sample (SAMP) bit
2 T
AD
—
3 T
AD
—
AD62
t
CSS
Conversion Completion to
Sample Start (ASAM = 1)
Sample Start (ASAM = 1)
(
)
—
0.5 T
AD
—
—
AD63
t
DPU
Time to Stabilize Analog Stage
from ADC Off to ADC On
from ADC Off to ADC On
(
)
—
—
20
s
See Note
Note 1: Because the sample caps will eventually lose charge, clock rates below 10 kHz may affect linearity
performance, especially at elevated temperatures.
2: These parameters are characterized but not tested in manufacturing.
3: The t
3: The t
DPU
parameter is the time required for the ADC module to stabilize at the appropriate level when the
module is turned on (ADON (ADxCON1<15>) = 1). During this time, the ADC result is indeterminate.
4: Device is functional at V
BORMIN
< V
DD
< V
DDMIN
. Analog modules: ADC, Comparator and DAC will have
degraded performance. Device functionality is tested but not characterized. Refer to Parameter
in