參數(shù)資料
型號(hào)： MB89215PFV
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, MROM, 12.5 MHz, MICROCONTROLLER, PDSO30
封裝： PLASTIC, SSOP-30
文件頁(yè)數(shù)： 32/46頁(yè)
文件大?。?/td> 473K
代理商： MB89215PFV
MB89210 Series
38
(2) Definition of A/D Converter Terms
Resolution
The level of analog variation that can be distinguished by the A/D converter.
When the number of bits is 10, analog voltage can be divided into 210
= 1024.
Linear error (Unit : LSB)
The deviation between the value along a straight line connecting the zero transition point(“00 0000
0000”
←→“00 0000 0001”) of a device and the full-scale transition point (“11 1111 1111”←→“11 1111 1110”),
compared with the actual conversion values obtained.
Differential linear error (Unit : LSB)
Deviation of input voltage, which is required for changing output code by 1 LSB, from an ideal value.
Total error (Unit : LSB)
The difference between theoretical conversion value and actual conversion value.
(Continued)
3FF
3FE
3FD
004
003
002
001
VSS
VCC
VOT
0.5 LSB
1 LSB
1.5 LSB
VFST
Ideal I/O characteristics
Analog input
Digital
output
1 LSB
=
VFST
VOT
1022
(V)
3FF
3FE
3FD
004
003
002
001
VSS
VCC
VNT
{1 LSB
× N + 0.5 LSB}
Total error
Analog input
Digital
output
Total error in digital output N
= VNT {1 LSB × N + 0.5 LSB}
1 LSB
Actual conversion
characteristic
Actual conversion
characteristic
Ideal characteristics
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