參數(shù)資料
型號(hào): UPD78P368A
廠商: NEC Corp.
英文描述: 16/8 BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 16 / 8位單片機(jī)
文件頁數(shù): 29/52頁
文件大?。?/td> 545K
代理商: UPD78P368A
29
m
PD78P368A
A/D CONVERTER CHARACTERISTICS (T
A
= –40 to +85 °C, V
DD
= +5 V ±10 %, V
SS
= AV
SS
= 0 V,
V
DD
– 0.5 V - AV
DD
- V
DD
)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Resolution
10
bit
Total error
Note 1
4.5 V - AV
REF
- AV
DD
±0.4
%FSR
3.4 V - AV
REF
- AV
DD
±0.7
%FSR
Quantization error
±1/2
LSB
Conversion time
t
CONV
62.5 ns - t
CYK
< 80 ns
208
t
CYK
80 ns - t
CYK
- 166.6 ns
169
t
CYK
Sampling time
t
SAMP
62.5 ns - t
CYK
< 80 ns
8
t
CYK
80 ns - t
CYK
- 166.6 ns
6
t
CYK
Zero-scale error
Note 1
4.5 V - AV
REF
- AV
DD
±1.5
±2.5
LSB
3.4 V - AV
REF
- AV
DD
±1.5
±4.5
LSB
Full-scale error
Note 1
4.5 V - AV
REF
- AV
DD
±1.5
±2.5
LSB
3.4 V - AV
REF
- AV
DD
±1.5
±4.5
LSB
Nonlinearity error
Note 1
4.5 V - AV
REF
- AV
DD
±1.5
±2.5
LSB
3.4 V - AV
REF
- AV
DD
±1.5
±4.5
LSB
Analog input voltage
Note 2
V
IAN
–0.3
AV
REF
+ 0.3
V
Analog input impedance
R
AN
When not sampling
10
M
W
When sampling
Note 3
Reference voltage
AV
REF
3.4
AV
DD
V
AV
REF1
current
AI
REF
1.0
3.0
mA
AV
DD
supply current
AI
DD
Operating mode
2.0
6.0
mA
A/D converter data
retention current
AI
DDDR
STOP mode
AV
DDDR
= 2.5 V
2
10
m
A
AV
DDDR
= 5 V ±10 %
10
50
m
A
Notes1.
The quantization error is excluded.
2.
When –0.3 V - V
IAN
- 0 V, the conversion result becomes 000H.
When 0 V < V
IAN
< AV
REF
, the conversion is performed with the 10-bit resolution.
When AV
REF
- V
IAN
- AV
REF
+ 0.3 V, the conversion result becomes 3FFH.
3.
The analog input impedance at the time of sampling is the same as the equivalent circuit shown below.
(The values in the diagram are TYP. values; they are not guaranteed values.)
Analog input pin
25 pF
(Input
capacitance
included)
1.4 pF
1 k
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