参数资料
型号: MB90F498GPMC
厂商: FUJITSU LTD
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP64
封装: 12 X 12 MM, 1.70 MM HEIGHT, 0.65 MM PITCH, PLASTIC, LQFP-64
文件页数: 79/96页
文件大小: 2317K
代理商: MB90F498GPMC
MB90495G Series
80
DS07-13713-6E
6.
A/D Converter Glossary
(Continued)
Resolution
: Analog changes that are identifiable with the A/D converter
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
ideal value.
Total error
: The difference between the actual value and the theoretical value, which includes
zero-transition error/full-scale transition error, linearity error, and differential linear-
ity error.
3FFH
3FEH
3FDH
004H
003H
002H
001H
AVSS
AVR
VNT
1.5 LSB
0.5 LSB
{1 LSB
× (N 1) + 0.5 LSB}
Actual conversion
characteristics
(actual measurement)
Actual conversion
characteristics
Ideal characteristics
Digital
output
Analog input
Total error
Total error of digital output N
=
VNT
{1 LSB × (N 1) + 0.5 LSB}
1 LSB
[LSB]
1 LSB
= (ideal value)
AVR
AVSS
1024
[V]
VOT (ideal value)
= AVSS + 0.5 LSB [V]
VFST (ideal value)
= AVR 1.5 LSB [V]
VNT : The voltage to transition digital output from (N
1) to N.
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