参数资料
型号: MB91108PFV
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 50 MHz, RISC MICROCONTROLLER, PQFP120
封装: PLASTIC, LQFP-120
文件页数: 88/96页
文件大小: 1342K
代理商: MB91108PFV
MB91107/108
89
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
VOT
N
1
AVRL
AVRH
N
2
N
+ 1
VNT
V(N
+ 1)T
Linearity error
Differential linearity error
Digital
output
Digital
output
Actual conversion characteristic
Analog input
Linearity error of digital output N
=
VNT
{1 LSB × (N 1) + VOT}
1 LSB
[LSB]
Differential linearity error of digital output N
=
V (N
+ 1) T VNT
1 LSB
1
1 LSB
=
VFST
VOT
1022
[V]
1 LSB (Ideal value)
=
AVRH
AVRL
1024
[V]
VOT : A voltage for causing transition of digital output from (000) H to (001) H
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
[LSB]
Actual conversion
characteristic
Actual conversion
characteristic
Actual conversion
character
istic
(Measured
value)
(Measured
val
ue)
(Measured
value)
(Measured
value)
(Measured
value)
Ideal val
ue
Ideal valu
e
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