參數(shù)資料
型號: MB91121PFV
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 50 MHz, RISC MICROCONTROLLER, PQFP120
封裝: PLASTIC, LQFP-120
文件頁數(shù): 91/100頁
文件大?。?/td> 2316K
代理商: MB91121PFV
MB91121 Series
90
DS07-16303-4E
6.
A/D Converter Glossary
Resolution
The smallest change in analog voltage detected by A/D converter.
Linearity error
A deviation of actual conversion characteristic from a line connecting the zero-traction point (between “00 0000
0000”
“00 0000 0001”) to the full-scale transition point (between “11 1111 1110” “11 1111 1111”) .
Differential linearity error
A deviation of a step voltage for changing the LSB of output code from ideal input voltage.
3FF
3FE
3FD
004
003
002
001
AVRL
AVRH
{1 LSB
× (N 1) + VOT}
VNT
VFST
N
1
AVRL
AVRH
N
2
N
+ 1
VNT
V(N + 1)T
Linearity error
Analog input
Actual conversion
characteristic
Actual conversion
characteristic
Ideal characteristic
(measured value)
(measured
value)
VOT (measured value)
Differential linearity error
Analog input
Actual conversion
characteristic
Ideal characteristic
Actual conversion characteristic
(measured value)
Digital
output
Digital
output
1 LSB =
[V]
VFST
VOT
1022
Linearity error of digital output N =
VNT
{1 LSB × (N 1) + VOT}
1 LSB
VOT: A voltage for causing transition of digital output from (000)H to (001)H
[LSB]
Differential linearity error
of digital output N =
V(N + 1)T
VNT
1 LSB
[LSB]
1
VFST: A voltage for causing transition of digital output from (3FE)H to (3FF)H
VNT: A voltage for causing transition of digital output from (N
1)H to N
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