DSPIC30F3013-30I Datasheet, PDF (185/210 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC30F2011/2012/3012/3013
TABLE 20-37: 12-BIT A/D CONVERSION TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.7V to 5.5V
(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
AD50 TAD
A/D Clock Period
334
—
—
ns VDD = 3-5.5V (Note 1)
AD51 tRC
A/D Internal RC Oscillator Period 1.2
1.5 1.8
μs
Conversion Rate
AD55 tCONV Conversion Time
— 14 TAD
ns
AD56a FCNV
Throughput Rate
—
200
—
ksps VDD = VREF = 5V,
Industrial temperature
AD56b FCNV
Throughput Rate
—
100
—
ksps VDD = VREF = 5V,
Extended temperature
AD57 TSAMP Sampling Time
1 TAD
—
—
ns VDD = 3-5.5V source
resistance
RS = 0-2.5 kΩ
Timing Parameters
AD60 tPCS
Conversion Start from Sample
—
1 TAD —
ns
Trigger
AD61 tPSS
Sample Start from Setting
Sample (SAMP) Bit
0.5 TAD —
1.5
ns
TAD
AD62 tCSS
Conversion Completion to
— 0.5 TAD —
ns
Sample Start (ASAM = 1)
AD63 tDPU⁽²⁾ Time to Stabilize Analog Stage
—
—
20
μs
from A/D Off to A/D On
Note 1: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.
2: tDPU is the time required for the ADC module to stabilize when it is turned on (ADCON1<ADON> = 1).
During this time the ADC result is indeterminate.
© 2010 Microchip Technology Inc.
DS70139G-page 185