PIC24F04KA201 Datasheet, PDF (204/224 Pages) Microchip Technology – 14/20-Pin General Purpose, 16-Bit Flash Microcontrollers with nanoWatt XLP™ Technology

PIC24F04KA201 FAMILY
TABLE 26-25: ADC CONVERSION TIMING REQUIREMENTS⁽¹⁾
AC CHARACTERISTICS
Standard Operating Conditions: 1.8V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
Param
No.
Symbol
Characteristic
Min. Typ Max. Units
Conditions
Clock Parameters
AD50 TAD
ADC Clock Period
75
—
—
ns TCY = 75 ns, AD1CON3
in default state
AD51 TRC
ADC Internal RC Oscillator
Period
—
250
—
ns
Conversion Rate
AD55 TCONV Conversion Time
—
12
—
TAD
AD56 FCNV
Throughput Rate
—
—
500 ksps AVDD ≥ 2.7V
AD57 TSAMP Sample Time
—
1
—
TAD
AD58 TACQ
Acquisition Time
750
—
—
ns
(Note 2)
AD59 TSWC
Switching Time from Convert to
—
Sample
— (Note 3)
AD60 TDIS
Discharge Time
0.5
—
—
TAD
Clock Parameters
AD61 TPSS
Sample Start Delay from setting
2
—
3
TAD
Sample bit (SAMP)
Note 1:
2:
3:
Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.
The time for the holding capacitor to acquire the “New” input voltage when the voltage changes full scale
after the conversion (VDD to VSS or VSS to VDD).
On the following cycle of the device clock.
DS39937B-page 202
Preliminary
© 2009 Microchip Technology Inc.