DSPIC33FJXXXMCX06A Datasheet, PDF (312/352 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC33FJXXXMCX06A/X08A/X10A
TABLE 26-42: ADC CONVERSION (12-BIT MODE) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  TA  +85°C for Industrial
-40°C  TA  +125°C for Extended
Param
No.
Symbol
Characteristic
Min. Typ Max. Units
Conditions
Clock Parameters
AD50a TAD
ADC Clock Period
117.6 —
—
ns
AD51a tRC
ADC Internal RC Oscillator
Period
—
250
—
ns
Conversion Rate
AD55a tCONV Conversion Time
— 14 TAD
—
AD56a FCNV
Throughput Rate
—
—
500 ksps
AD57a TSAMP Sample Time
3.0 TAD —
—
—
Timing Parameters
AD60a tPCS
Conversion Start from Sample
Trigger^(1,2)
2.0 TAD
— 3.0 TAD —
AD61a tPSS
Sample Start from Setting
Sample (SAMP) bit^(1,2)
2.0 TAD — 3.0 TAD —
AD62a tCSS
Conversion Completion to
Sample Start (ASAM = 1)^(1,2)
— 0.5 TAD —
—
AD63a tDPU
Time to Stabilize Analog Stage
—
—
20
s
from ADC Off to ADC On^(1,2,3)
Note 1: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.
2: These parameters are characterized but not tested in manufacturing.
3: tDPU is the time required for the ADC module to stabilize when it is turned on (AD1CON1<ADON> = 1).
During this time, the ADC result is indeterminate.
DS70594B-page 312
Preliminary
 2009 Microchip Technology Inc.