Datasheet

R01DS0033EJ0220 Rev.2.20 Page 55 of 115
Nov 01, 2012
M16C/63 Group 5. Electrical Characteristics
Figure 5.3 A/D Accuracy Measure Circuit
Notes:
1. Use when AV
CC
= V
CC1
= V
CC2
.
2. Do not use A/D converter when V
CC1
> V
CC2
.
3. When analog input voltage is over reference voltage, the result of A/D conversion is 3FFh.
4. Flash memory rewrite disabled. Except for the analog input pin, set the pins to be measured as input ports and
connect them to V
SS
. See Figure 5.3 “A/D Accuracy Measure Circuit”.
5.1.4 D/A Conversion Characteristics
Notes:
1. This applies when using one D/A converter, with the D/A register for the unused D/A converter set to 00h.
2. The current consumption of the A/D converter is not included. Also, the I
VREF
of the D/A converter will flow even
if the ADSTBY bit in the ADCON1 register is 0 (A/D operation stopped (standby)).
Table 5.7 A/D Conversion Characteristics (2/2)
(1)
AV
CC
= V
CC1
= V
CC2
= V
REF
= 1.8 to 5.5 V, V
SS
= AV
SS
= 0 V at T
opr
= -20°C to 85°C/-40°C to 85°C unless otherwise
specified.
Symbol Parameter Measuring Condition
Standard
Unit
Min. Typ. Max.
φAD A/D operating clock frequency 4.0 V ≤ V
REF
≤ AV
CC
≤ 5.5 V 2 20
MHz
3.2 V
≤ V
REF
≤ AV
CC
≤ 5.5 V 2 16
MHz
3.0 V
≤ V
REF
≤ AV
CC
≤ 5.5 V 2 10
MHz
1.8 V
≤ V
REF
≤ AV
CC
≤ 5.5 V 2 5 MHz
- Tolerance level impedance 3 k
Ω
D
NL
Differential non-linearity error
(4)
±1 LSB
- Offset error
(4)
±3 LSB
- Gain error
(4)
±3 LSB
t
CONV
10-bit conversion time V
CC1
= 5 V, φAD = 20 MHz 2.15 μs
t
SAMP
Sampling time 0.75 μs
V
REF
Reference voltage 1.8 AV
CC
V
V
IA
Analog input voltage
(2), (3)
0V
REF
V
Table 5.8 D/A Conversion Characteristics
V
CC1
= AV
CC
= V
REF
= 3.0 to 5.5 V, V
SS
= AV
SS
= 0 V at T
opr
= -20°C to 85°C/-40°C to 85°C unless otherwise specified.
Symbol Parameter Measuring Condition
Standard
Unit
Min. Typ. Max.
- Resolution 8Bits
- Absolute Accuracy 2.5 LSB
t
SU
Setup Time
3
μs
R
O
Output Resistance
568.2k
Ω
I
VREF
Reference Power Supply Input Current
See Notes
1
and
2
1.5 mA
AN
Analog input
AN: One of the analog input pin
P0 to P10: I/O pins other than AN
P0 to P10