參數(shù)資料
型號(hào): MB91101APF
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 50 MHz, RISC MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁(yè)數(shù): 93/99頁(yè)
文件大?。?/td> 935K
代理商: MB91101APF
MB91101/MB91101A
93
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
Linearity error
Analog input
Actual conversion
characteristic
{1 LSB
× (N – 1) + VOT}
VNT
Actual conversion
characteristic
Ideal characteristic
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
(measured value)
VFST
(measured
value)
VOT (measured value)
N–1
AVRL
AVRH
Differential linearity error
Analog input
N–2
N
N+1
Actual characteristic
Ideal characteristic
Actual conversion characteristic
VNT
(measured value)
V(N + 1)T
(measured value)
[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) to N
Digital
output
Digital
output
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