参数资料
型号: MB90423GAPMC
厂商: FUJITSU LTD
元件分类: 微控制器/微处理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封装: 14 X 14 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-100
文件页数: 75/88页
文件大小: 1991K
代理商: MB90423GAPMC
MB90420G/425G Series
DS07-13711-5E
77
(2) Definition of terms
Resolution
Indicates the ability of the A/D converter to discriminate in analog conversion.
10-bit resolution indicates that analog voltage can be resolved into 210
= 1024 levels.
Total error
Expresses the difference between actual and logical values. It is the total value of errors that can come from
offset error, gain error, non-linearity error and noise.
Linearity error
Expresses the deviation between actual conversion characteristics and a straight line connecting the device’s
zero transition point (00 0000 0000
←→ 00 0000 0001) and full scale transition point (11 1111 1110 ←→ 11
1111 1111) .
Differential linearity error
Expresses the deviation of the logical value of input voltage required to create a variation of 1 LSB in output code.
11 1111 1111
11 1111 1110
11 1111 1101
11 1111 1100
00 0000 0011
00 0000 0010
00 0000 0001
00 0000 0000
.
1 LSB
× N + VOT
VOT
VNT
VFST
V(N + 1)T
Digital
output
Linearity error
Analog input
1 LSB =
Linearity error =
Differential linearity error =
VFST
VOT
1022
[LSB]
VNT
(1 LSB × N + VOT)
1 LSB
V (N + 1) T
VNT
1
10-bit A/D converter conversion characteristics
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