XC886/888CLM
Analog-to-Digital Converter
User’s Manual
16-6
V1.3, 2010-02
ADC, V 1.0
Total Conversion Time
t
CONV
The total conversion time (synchro sa charge redistribution)
t
CONV
is
given by:
t
CONV
= t
ADC
×
(1 + r
×
(3 + n + STC))
(16.2)
where
r = CTC + 2 for CTC = 00
B
, 01
B
or 10
B
,
r = 32 for CTC = 11
B
,
CTC = Conversion Time Control,
STC = Sample Time Control,
n = 8 or 10 (for 8-bit and 10-bit conversion, respectively),
t
ADC
= 1 /
f
ADC
Example:
STC = 00
H
,
CTC = 01
B
,
f
ADC
= 24 MHz,
n = 10,
t
CONV
=
t
ADC
×
(1 + 3
×
(3 + 10 + 0)) = 1.67
µ
s
*