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参数资料
| 型号： | MB89PV930ACFV |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 10 MHz, MICROCONTROLLER, CQFP48 |
| 封装： | CERAMIC, MQFP-48 |
| 文件页数： | 25/44页 |
| 文件大小： | 1150K |
| 代理商： | MB89PV930ACFV |
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MB89930B Series
DS07-12541-7E
31
5.
A/D Converter
(1) A/D Converter Electrical Characteristics
(VCC
= 5.0 V ± 10%, AVSS = VSS = 0.0 V, Ta = 40 °C to +85 °C)
* : For information on tinst, see “ (4) Instruction Cycle” in “4. AC Characteristics”.
(2) A/D Converter Glossary
Resolution
Analog changes that are identifiable with the A/D converter
When the number of bits is 10, analog voltage can be divided into 210
= 1024.
Linearity error (unit : LSB)
The deviation of the straight line connecting the zero transition point (“00 0000 0000”
“00 0000 0001”) with
the full-scale transition point (“11 1111 1111”
“11 1111 1110”) from actual conversion characteristics
Differential linearity error (unit : LSB)
The deviation of input voltage needed to change the output code by 1 LSB from the theoretical value
Total error (unit : LSB)
The difference between theoretical and actual conversion values
Parameter
Symbol
Value
Unit
Remarks
Min
Typ
Max
Resolution
10
bit
Total error
5.0
+5.0
LSB
Linearity error
3.0
+3.0
LSB
Differential linearity error
2.5
+2.5
LSB
Zero transition voltage
VOT
AVSS
3.5 LSB AVSS + 0.5 LSB AVSS + 4.5 LSB
V
Full-scale transition voltage
VFST
VCC
6.5 LSB
VCC
1.5 LSB
VCC
+ 2.0 LSB
V
A/D mode conversion time
38 tINST*
s
Analog port input current
IAIN
10
A
Analog input voltage range
0
VCC
V
3FF
3FE
3FD
004
003
002
001
AVSS
VCC
VOT
0.5 LSB
1 LSB
Theoretical I/O characteristics
Analog input
Digital
output
1.5 LSB
VFST
3FF
3FE
3FD
004
003
002
001
AVSS
VCC
VNT
{1 LSB
× N + 0.5 LSB}
Actual conversion
value
Actual conversion
value
Theoretical value
Total error
Analog input
Digital
output
1 LSB
=
VFST
VOT
1022
(V)
Total error of digital output N
=
VNT
{1 LSB × N + 0.5 LSB}
1 LSB
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