參數(shù)資料
型號(hào)： MB89W627C-SH
元件分類： 微控制器/微處理器
英文描述： 8-BIT, UVPROM, 10 MHz, MICROCONTROLLER, CDIP64
封裝： CERAMIC, SDIP-64
文件頁數(shù)： 38/61頁
文件大?。?/td> 934K
代理商： MB89W627C-SH
MB89620 Series
43
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.”
(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
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 A/D
conversion
is activated
—100
A
IRH
AVR = 5.0 V,
when A/D
conversion
is stopped
——
1
A
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