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参数资料
| 型号： | MB89P165-202-PFV |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 4.2 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | PLASTIC, LQFP-80 |
| 文件页数： | 36/53页 |
| 文件大小： | 845K |
| 代理商： | MB89P165-202-PFV |
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41
MB89160/160A Series
5. A/D Converter Electrical Characteristics
(3 MHz, AVCC = VCC = +3.5 V to +6.0 V, AVSS = VSS = 0.0 V, TA = –40
°C to +85°C)
(1) A/D Glossary
Resolution
Analog changes that are identifiable with the A/D converter.
When the number of bits is 8, analog voltage can be divided into 28=256.
Linearity error (unit: LSB)
The deviation of the straight line connecting the zero transition point (“0000 0000”
“0000 0001”) with the
full-scale transition point (“1111 1111”
“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
Pin
Condition
Value
Unit Remarks
Min.
Typ.
Max.
Resolution
—
——
—
8
bit
Total error
AVR = AVCC
——
±1.5
LSB
Linearity error
—
±1.0
LSB
Differential linearity error
——
±0.9
LSB
Zero transition voltage
VOT
AVSS – 1.0 LSB AVSS + 0.5 LSB AVSS + 2.0 LSB
mV
Full-scale transition
voltage
VFST
AVR – 3.0 LSB AVR – 1.5 LSB
AVR
mV
Interchannel disparity
—
——
0.5
LSB
A/D mode conversion time
—
—44 tinst
—
s
Sense mode
conversion time
—12 tinst
—
s
Analog port input current
IAI
AN0 to
AN7
——
10
A
Analog input voltage
—
0.0
—
AVR
V
Reference voltage
—
AVR
2.0
—
AVCC
V
Reference voltage
supply current
IR
AVR = 5.0 V,
when A/D
conversion
is activated
—
100
—
A
IRH
AVR = 5.0 V,
when A/D
conversion
is stopped
——
1
A
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