參數(shù)資料
    型號: TMS370C0B6ANMT
    元件分類: 8位微控制器
    英文描述: 8-BIT MICROCONTROLLER
    中文描述: 8位微控制器
    文件頁數(shù): 44/48頁
    文件大?。?/td> 711K
    代理商: TMS370C0B6ANMT
    TMS370Cx36
    8-BIT MICROCONTROLLER
    SPNS039B – JANUARY 1996 – REVISED FEBRUARY 1997
    44
    POST OFFICE BOX 1443
    HOUSTON, TEXAS 77251–1443
    ADC1 converter
    The ADC1 converter has a separate power bus for its analog circuitry. These pins are referred to as V
    CC3
    and
    V
    SS3
    . The purpose is to enhance ADC1 performance by preventing digital switching noise of the logic circuitry
    that can be present on V
    SS1
    and V
    CC1
    from coupling into the ADC1 analog stage. All ADC1 specifications are
    given with respect to V
    SS3
    unless otherwise noted.
    Resolution
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
    Monotonic
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
    Output conversion mode
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
    Conversion time (excluding sample time)
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
    8-bits (256 values)
    Yes
    00h to FFh (00 for V
    I
    V
    SS3
    ; FF for V
    I
    V
    ref
    )
    164 t
    c
    recommended operating conditions
    MIN
    4.5
    NOM
    MAX
    5.5
    UNIT
    VCC3
    Analog supply voltage
    5
    V
    VCC1–0.3
    VSS1–0.3
    2.5
    VCC1+0.3
    VSS1+0.3
    VCC3 + 0.1
    Vref
    VSS3
    Vref
    Analog ground
    Non-VCC3 reference
    Analog input for conversion
    Vref must be stable, within
    ±
    1/2 LSB of the required resolution, during the entire conversion time.
    V
    VCC3
    V
    VSS3
    V
    operating characteristics over recommended ranges operating conditions
    PARAMETER
    MIN
    MAX
    ±
    1.5
    ±
    0.9
    UNIT
    Absolute accuracy
    Differential/integral linearity error§
    VCC3 = 5.5 V
    VCC3 = 5.5 V
    Converting
    Vref = 5.1 V
    Vref = 5.1 V
    LSB
    LSB
    ICC3
    Analog supply current
    2
    mA
    μ
    A
    μ
    A
    mA
    k
    k
    Nonconverting
    0 V
    VI
    5.5 V
    5
    II
    Iref
    Input current, AN0–AN7
    2
    Input charge current
    1
    Zref
    Source impedance of V f
    Source impedance of Vref
    SYSCLK
    3 MHz
    3 MHz < SYSCLK
    5 MHz
    24
    10
    Absolute resolution = 20 mV. At Vref = 5 V, this is one LSB. As Vref decreases, LSB size decreases; therefore, the absolute accuracy and
    differential/integral linearity errors in terms of LSBs increase.
    §Excluding quantization error of 1/2 LSB
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