|
PIC24FV32KA304-I Datasheet, PDF (286/320 Pages) Microchip Technology – 20/28/44/48-Pin, General Purpose, 16-Bit Flash Microcontrollers with XLP Technology | |||
|
◁ |
PIC24FV32KA304 FAMILY
TABLE 29-28: ADC CONVERSION TIMING REQUIREMENTS(1)
AC CHARACTERISTICS
Standard Operating Conditions: 1.8V to 3.6V PIC24F32KA3XX
2.0V to 5.5V PIC24FV32KA3XX
Operating temperature -40°C ï£ TA ï£ +85°C for Industrial
Param
No.
Symbol
Characteristic
Min. Typ Max. Units
Conditions
AD50 TAD
AD51 TRC
ADC Clock Period
Clock Parameters
75
â
â
ADC Internal RC Oscillator
Period
â 250
â
ns TCY = 75 ns, AD1CON3 in
default state
ns
AD55
AD56
AD57
AD58
AD59
TCONV
FCNV
TSAMP
TACQ
TSWC
AD60 TDIS
Conversion Rate
Conversion Time
â
12
â
Throughput Rate
â
â
100
Sample Time
â
1
â
Acquisition Time
750 â
â
Switching Time from Convert â
to Sample
â (Note 3)
Discharge Time
0.5
â
â
TAD
ksps
TAD
ns
AVDD ï³ 2.7V
(Note 2)
TAD
Clock Parameters
AD61 TPSS
Sample Start Delay from
2
â
3
TAD
Setting Sample bit (SAMP)
Note 1: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.
2: The time for the holding capacitor to acquire the âNewâ input voltage when the voltage changes full scale
after the conversion (VDD to VSS or VSS to VDD).
3: On the following cycle of the device clock.
DS39995B-page 286
ï£ 2011 Microchip Technology Inc.
|
▷ |