308
14.2.4
A/D Converter Characteristics
Table 14.6 shows the A/D converter characteristics.
Table 14.6
A/D Converter Characteristics
AV
CC
= V
CC
= 2.7 V to 5.5 V, AV
SS
= V
SS
= 0.0 V, T
a
= –20 to +75
°
C, unless otherwise specified.
Item
Symbol
Applicable Pins
Min
Typ
Max
Unit
Test Condition
Notes
Analog power
supply voltage
AV
CC
AV
CC
2.7
—
5.5
V
1
Analog input
voltage
AV
IN
AN
4
to AN
7
–0.3
—
AV
CC
+ 0.3 V
Analog power
supply current
AI
OPE
AV
CC
—
—
1.5
mA
AV
CC
= 5.0 V
AI
STOP1
AV
CC
—
150
—
µ
A
2
Reference
value
AI
STOP2
AV
CC
—
—
5
µ
A
3
Analog input
capacitance
C
AIN
AN
4
to AN
7
—
—
30
pF
Allowable
signal source
impedance
R
AIN
—
—
10
k
Ω
Resolution
—
—
8
bit
Non-linearity
error
—
—
±
2.0
LSB
Quantization
error
—
—
±
0.5
LSB
Absolute
accuracy
—
—
±
2.5
LSB
Conversion
time
12.4
—
248
µ
s
AV
CC
= 4.5 V to
5.5 V
24.8
—
248
µ
s
Notes: 1. Set AV
CC
= V
CC
when the A/D converter is not used.
2. AI
STOP1
is the current in active and sleep modes while the A/D converter is idle.
3. AI
STOP2
is the current at reset and in standby, watch, subactive, and subsleep modes
while the A/D converter is idle.