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CHAPTER 28 ELECTRICAL SPECIFICATIONS
User’s Manual U19780EJ2V0UD
648
Caution The pins mounted depend on the product. Refer to Caution 2 at the beginning of this chapter.
(1) A/D Converter (2/2)
(c) T
A
= 0 to +50
°
C, 1.8 V
≤
AV
REFP
≤
AV
DD
, 2.3 V
≤
AV
DD
≤
V
DD
≤
3.6 V, V
SS
= AV
SS
= AV
REFM
= 0 V
Parameter Symbol Conditions
MIN.
TYP.
MAX.
Unit
Resolution R
ES
12 12 12 bit
2.3 V
≤
AV
REFP
≤
3.6 V
±
2.0
±
8.0 LSB
Overall error
Note 1
A
INL
1.8 V
≤
AV
REFP
< 2.3 V
±
3.0
±
8.0 LSB
Normal mode 1, 2
Note 2
5
μ
s
Conversion time
t
CONV
Low-voltage mode
Note 2
6.25
μ
s
Zero-scale error
Note 1
E
ZS
±
2.0
±
6.0 LSB
Full-scale error
Note 1
E
FS
±
2.0
±
6.0 LSB
Integral non-linearity error
Note 1
I
LE
±
4.0 LSB
Differential non-linearity error
Note 1
D
LE
±
1.0
±
2.0 LSB
In 78K0/KB2-A
0
AV
REF
V
Analog input voltage
V
AIN
When using AV
REFM
in 78K0/KC2-A
AV
REFM
AV
REFP
V
Reference supply current
I
REF
46
200
μ
A
Notes 1.
Excludes quantization error (
±
1/2 LSB).
2.
The voltage range that can be used on each mode is as follows.
Normal mode 1
: 2.7 V
≤
AV
DD
≤
5.5 V
Normal mode 2
: 2.3 V
≤
AV
DD
≤
5.5 V
Low-voltage mode : 1.8 V
≤
AV
DD
≤
5.5 V
When using the A/D converter in Normal mode 2 or low-voltage mode, be sure to enable the A/D
converter voltage booster (by setting VRGV to 1).
(2) Operational amplifier
(T
A
=
−
40 to +85
°
C, 2.0 V
≤
AV
DD
≤
V
DD
≤
5.5 V, V
SS
= AV
SS
= 0 V)
Parameter Symbol Conditions
MIN.
TYP.
MAX.
Unit
Common-mode input voltage
V
IAMP
AV
DD
= 3.0 V
0
AV
DD0
−
0.6
V
Input offset voltage
V
IOAMP
±
10 mV
Maximum output voltage
(high)
V
OHAMP
AV
DD
= 3.0 V/2.3 V,
I
SOURCE
=
−
500
μ
A
AV
DD0
−
0.2
V
Maximum output voltage (low) V
OLAMP
AV
DD
= 3.0 V/2.3 V,
I
SOURCE
= 500
μ
A
0.1
V
Open-loop
gain
100 dB
Mode 1
0.2
V/
μ
s
Mode 2
0.4
V/
μ
s
Slew rate
SR
AMP
AV
DD
= 3.0 V
Mode 3
1.4
V/
μ
s
Mode 1
60
μ
s
Mode 2
30
μ
s
Turn-on time
t
ONAMP
AV
DD
= 3.0 V
Mode 3
10
μ
s
Note
Time required until a state is entered where the DC and AC specifications of the operational amplifier 0 are
satisfied after the operational amplifier 0 operation has been enabled (OPAMP0E = 1).