参数资料
型号: MB90822PFV
厂商: FUJITSU LTD
元件分类: 微控制器/微处理器
英文描述: 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP80
封装: 0.50 MM PITCH, PLASTIC, LQFP-80
文件页数: 93/100页
文件大小: 1414K
代理商: MB90822PFV
MB90820 Series
92
6.
A/D Converter Glossary
Resolution
: Analog variation that is recognized by an A/D converter.
Non linearity error
: Deviation between a line across zero-transition line (“00 0000 0000”
“00 0000 0001”) and full-scale transition line (“11 1111 1110”
“11 1111 1111”) and
actual conversion characteristics.
Differential linearity error : Deviation of input voltage, which is required for changing output code by 1 LSB, from
an ideal value
Total error
: Difference between an actual value and an ideal value. A total error includes zero
transition error, full-scale transition error, and linear error.
(Continued)
3FFH
3FEH
3FDH
004H
003H
002H
001H
AVRL
AVRH
VNT
{1 LSB
× (N 1) + 0.5 LSB}
0.5 LSB
Total error
Actual conversion
characteristics
Analog input
Total error for 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 : Voltage at which of digital output transitions from (N
1) to N.
Actual
conversion
characteristics
Ideal
characteristics
(Measurement value)
Digital
output
N : A/D converter digital output value
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