參數(shù)資料
型號(hào)： MB95F378EPMC2-G-SNE2
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 16.25 MHz, MICROCONTROLLER, PQFP64
封裝： 12 X 12 MM, 1.70 MM HEIGHT, 0.65 MM PITCH, PLASTIC, LQFP-64
文件頁(yè)數(shù)： 64/76頁(yè)
文件大小： 2597K
代理商： MB95F378EPMC2-G-SNE2
MB95310L/370L Series
DS07-12628-1E
67
(3) Definitions of A/D Converter Terms
Resolution
It indicates the level of analog variation that can be distinguished by the A/D converter.
When the number of bits is 10, analog voltage can be divided into 210 = 1024.
Linearity error (unit: LSB)
It indicates how much an actual conversion value deviates from the straight line connecting
the zero transition point (“00 0000 0000”
← → “00 0000 0001”) of a device to
the full-scale transition point (“11 1111 1111”
← → “11 1111 1110”) of the same device.
Differential linear error (unit: LSB)
It indicates how much the input voltage required to change the output code by 1 LSB deviates from an
ideal value.
Total error (unit: LSB)
It indicates the difference between an actual value and a theoretical value. The error can be caused by a
zero transition error, a full-scale transition errors, a linearity error, a quantum error, or noise.
(Continued)
VFST
Ideal I/O characteristics
001H
002H
003H
004H
3FDH
3FEH
3FFH
Digit
a
lo
u
tp
u
t
Digit
a
lo
u
tp
u
t
2 LSB
VOT
1 LSB
0.5 LSB
Total error
Analog input
001H
002H
003H
004H
3FDH
3FEH
3FFH
Actual conversion
characteristic
Ideal characteristic
Actual conversion
characteristic
N
VNT
: A/D converter digital output value
: Voltage at which the digital output transits from (N - 1)H to NH
{1 LSB
× (N-1) + 0.5 LSB}
VNT
Total error of
digital output N
VNT - {1 LSB
× (N - 1) + 0.5 LSB}
1 LSB
[LSB]
=
VCC - VSS
1024
(V)
1 LSB =
VSS
VCC
VSS
VCC
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