參數(shù)資料
型號(hào)： MB89T627RP-SH
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 10 MHz, MICROCONTROLLER, PDIP64
封裝： PLASTIC, SDIP-64
文件頁(yè)數(shù)： 38/61頁(yè)
文件大?。?/td> 935K
代理商： MB89T627RP-SH
43
MB89620R Series
5. A/D Converter Electrical Characteristics
(AVCC = VCC = +3.5 V to +6.0 V, AVSS = VSS = 0.0 V, TA = –40
°C to +85°C)
*: For information on tinst, see “(4) Instruction Cycle” in “4 AC Characteristics.”
6. A/D Converter 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 name 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 –1.0LSB AVSS +0.5LSB AVSS +2.0LSB
mV
Full-scale transition
voltage
VFST
AVR–3.0LSB
AVR–1.5LSB
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
IAIN
AN0 to AN7
——
10
A
Analog input voltage
—
0.0
—
AVR
V
Reference voltage
—
AVR
0.0
—
AVCC
V
Reference voltage
supply current
IR
AVR = 5.0 V,
when starting
A/D
conversion
—
100
A
IRH
AVR = 5.0 V,
when
stopping A/D
conversion
——
1
A
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