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  • 參數(shù)資料
    型號: MB90348CESPFV
    廠商: FUJITSU COMPONENT LTD
    元件分類: 微控制器/微處理器
    英文描述: 16-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP100
    封裝: 14 X 14 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, QFP-100
    文件頁數(shù): 66/85頁
    文件大?。?/td> 1173K
    代理商: MB90348CESPFV
    MB90340E Series
    69
    6.
    Definition of A/D Converter Terms
    (Continued)
    Resolution
    : Analog variation that is recognized by the A/D converter.
    Non linearity
    error
    : The deviation between the actual conversion characteristics and a line that joins the
    zero-transition line ( “00 0000 0000”
    ← → “00 0000 0001” ) to the full-scale transition line
    ( “11 1111 1110”
    ← → “11 1111 1111” ) .
    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 the actual value and the ideal value. The total error includes zero
    transition error, full-scale transition error, and linear error.
    3FFH
    3FEH
    3FDH
    004H
    003H
    002H
    001H
    AVRL
    AVRH
    VNT
    1.5 LSB
    0.5 LSB
    {1 LSB
    × (N 1) + 0.5 LSB}
    Actual conversion
    characteristics
    (Actually-measured value)
    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)
    =
    AVRH
    AVRL
    1024
    [V]
    VOT (Ideal value)
    = AVRL + 0.5 LSB [V]
    VFST (Ideal value)
    = AVRH 1.5 LSB [V]
    VNT : A voltage at which the digital output transitions from (N
    1) to N.
    N : Value of the digital output from the A/D converter
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