R8C/11 Group 5. Electrical Characteristics
Rev.1.60 Jan 27, 2006 page 15 of 26
REJ03B0034-0160
Table 5.3 A/D Conversion Characteristics
Standard
M
i
n
.Typ.M
a
x
.
– R
e
s
o
l
u
t
i
o
n
Bit
V
r
e
f
=
V
C
C
1
0
S
y
m
b
o
lP
a
r
a
m
e
t
e
rM
e
a
s
u
r
i
n
g
c
o
n
d
i
t
i
o
nUnit
LSB
±
3
R
L
A
D
D
E
R
t
C
O
N
V
L
a
d
d
e
r
r
e
s
i
s
t
a
n
c
e
C
o
n
v
e
r
s
i
o
n
t
i
m
e
R
e
f
e
r
e
n
c
e
v
o
l
t
a
g
e
Analog input voltage
V
V
I
A
V
R
E
F
0V
ref
NOTES:
1. V
CC
=AV
CC
=2.7 to 5.5V at Topr = -20 to 85 °C / -40 to 85 °C, unless otherwise specified.
2. If f
AD
exceeds 10 MHz more, divide the f
AD
and hold A/D operating clock frequency (Ø
AD)
10 MHz or below.
3. If the AVcc is less than 4.2V, divide the f
AD
and hold A/D operating clock frequency (Ø
AD)
f
AD
/2 or below.
4. Hold Vcc=Vref.
øAD=10 MHz, Vref=Vcc=5.0V
V
REF
=V
CC
–
A
b
s
o
l
u
t
e
a
c
c
u
r
a
c
y
–
1
0
b
i
t
m
o
d
e
8 bit mode
ø
A
D
=
1
0
M
H
z
,
V
r
e
f
=
V
c
c
=
5
.
0
V
±
2
L
S
B
1
0
b
i
t
m
o
d
e
8
b
i
t
m
o
d
e
øAD=10 MHz, Vref=Vcc=3.3V
(3)
±
5L
S
B
ø
A
D
=
1
0
M
H
z
,
V
r
e
f
=
V
c
c
=
3
.
3
V
(3
)
±
2L
S
B
1
0 40
kΩ
10 bit mode
8 bit mode
ø
A
D
=
1
0
M
H
z
,
V
r
e
f
=
V
c
c
=
5
.
0
V
ø
A
D
=
1
0
M
H
z
,
V
r
e
f
=
V
c
c
=
5
.
0
V
3
.
3
2
.
8
µs
µs
V
A
/
D
o
p
e
r
a
t
i
n
g
c
l
o
c
k
f
r
e
q
u
e
n
c
y
(
2
)
W
i
t
h
o
u
t
s
a
m
p
l
e
&
h
o
l
d
W
i
t
h
s
a
m
p
l
e
&
h
o
l
d
0.25
1
0
MHz
1.0
1
0
MHz
V
C
C
(4
)
P0
P1
P2
P3
P4
30pF
Figure 5.1 Port P0 to P4 measurement circuit