Datasheet

 2010-2012 Microchip Technology Inc. DS41412F-page 465
PIC18(L)F2X/4XK22
TABLE 27-23: 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)
12 — 12 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 2 — 2 TAD
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 con-
version (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.