Datasheet

 2010 Microchip Technology Inc. DS39905E-page 287
PIC24FJ256GA110 FAMILY
TABLE 28-20: ADC CONVERSION TIMING REQUIREMENTS
(1)
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C for Industrial
-40°C  T
A  +125°C for Extended
Param
No.
Symbol Characteristic Min. Typ Max. Units Conditions
Clock Parameters
AD50 T
AD ADC Clock Period 75 — — ns TCY = 75 ns, AD1CON3
in default state
AD51 t
RC 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 t
SAMP Sample Time — 1 — TAD
Clock Parameters
AD61 tPSS Sample Start Delay from Setting
Sample bit (SAMP)
2—3TAD
AD132 TACQ Acquisition Time — — 750 ns (Note 2)
AD135 TSWC Switching Time from Convert to
Sample
——(Note 3)
AD137 T
DIS Discharge Time 0.5 — — TAD
A/D Stabilization Time (from
setting ADON to setting SAMP)
— 300 — ns
Note 1: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.