参数资料
型号: MB90246APFV
元件分类: 微控制器/微处理器
英文描述: 16-BIT, 16 MHz, MICROCONTROLLER, PQFP100
封装: PLASTIC, LQFP-100
文件页数: 74/100页
文件大小: 1959K
代理商: MB90246APFV
75
MB90246A Series
6. A/D Converter Glossary
Resolution: Analog changes that are identifiable with the A/D converter
With 10 bits supported, an analog voltage can be divided into 210 parts.
Linearity error: The deviation of the straight line connecting the zero transition point (“00 0000 0000”
“00
0000 0001”) with the full-scale transition point (“11 1111 1110”
“11 1111 1111”) from actual
conversion characteristics
Differential linearity error: The deviation of input voltage needed to change the output code by 1 LSB from the
theoretical value
Total error: The total error is defined as a difference between the actual value and the theoretical value, which
includes zero-transition error/full-scale transition error, linearity error, differential linearity error and
error caused by noise.
11 1111 1111
11 1111 1110
00 0000 0010
00 0000 0001
00 0000 0000
VOT
VNT V(N + 1)T
VFST
(1 LSB
× N + VOT)
Linearity error
1 LSB =
=
[LSB]
=
– 1 LSB [LSB]
1022
VFST – VOT
Linearity error
1 LSB
VNT – (1 LSB
× N + VOT)
Differential linearity error
1 LSB
V( N+1 )T – VNT
Digital output
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