CHAPTER 20 ELECTRICAL SPECIFICATIONS (TARGET VALUES)
Preliminary User’s Manual U16898EJ1V0UD
289
A/D Converter Characteristics (T
A
=
−
40 to +85
°
C, 2.7 V
≤
AV
REF
≤
V
DD
≤
5.5 V)
Parameter Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Resolution
10 10 10 bit
4.0 V
≤
AV
REF
≤
4.5 V
±
0.2
±
0.4 %FSR
Overall error
Notes 1, 2
AINL
2.7 V
≤
AV
REF
< 4.0 V
±
0.3
±
0.6 %FSR
4.5 V
≤
AV
REF
≤
5.5 V
3.0
100
µ
s
4.0 V
≤
AV
REF
< 4.5 V
4.8
100
µ
s
2.85 V
≤
AV
REF
< 4.0 V
6.0
100
µ
s
Conversion time
t
CONV
2.7 V
≤
AV
REF
< 2.85 V
14.0
100
µ
s
4.0 V
≤
AV
REF
≤
5.5 V
±
0.4 %FSR
Zero-scale error
Notes 1, 2
Ezs
2.7 V
≤
AV
REF
< 4.0 V
±
0.6 %FSR
4.0 V
≤
AV
REF
≤
5.5 V
±
0.4 %FSR
Full-scale error
Notes 1, 2
Efs
2.7 V
≤
AV
REF
< 4.0 V
±
0.6 %FSR
4.0 V
≤
AV
REF
≤
5.5 V
±
2.5 LSB
Integral non-linearity error
Note 1
ILE
2.7 V
≤
AV
REF
< 4.0 V
±
4.5 LSB
4.0 V
≤
AV
REF
≤
5.5 V
±
1.5 LSB
Differential non-linearity error
Note 1
DLE
2.7 V
≤
AV
REF
< 4.0 V
±
2.0 LSB
Analog input voltage
V
IAN
V
SS
Note 3
AV
REF
V
Notes 1. Excludes quantization error (
±
1/2 LSB).
2. This value is indicated as a ratio (%FSR) to the full-scale value.
3. V
SS
and AV
SS
are internally connected in the 78K0S/KA1+. Be sure to stabilize V
SS
by connecting it to a
stable GND (= 0 V). If the status of the output port is varied during A/D conversion, the conversion
characteristics may be degraded.
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