Datasheet

PIC18(L)F2X/4XK22
DS40001412G-page 452  2010-2016 Microchip Technology Inc.
TABLE 27-22: A/D CONVERSION REQUIREMENTS PIC18(L)F2X/4XK22
Standard Operating Conditions (unless otherwise stated)
Operating temperature Tested at +25°C
Param.
No.
Symbol Characteristic Min Typ Max Units Conditions
130 T
AD A/D Clock Period 1 — 25 s-40C to +85C
1— 4 s+85C to +125C
131 T
CNV
Conversion Time
(not including acquisition time) (Note 1)
11 — 11 TAD
132 TACQ
Acquisition Time (Note 2) 1.4 — — sVDD = 3V, Rs = 50
135 T
SWC
Switching Time from Convert  Sample — — (Note 3)
136 T
DIS
Discharge Time 1 — 1 TCY
Note 1: ADRES register may be read on the following TCY cycle.
2: The time for the holding capacitor to acquire the “New” input voltage when the voltage changes full scale after the
conversion (V
DD to VSS or VSS to VDD). The source impedance (RS) on the input channels is 50 .
3: On the following cycle of the device clock.