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  • 參數(shù)資料
    型號: X9251UB24-2.7
    元件分類: 數(shù)字電位計
    英文描述: Quad Digitally-Controlled (XDCP) Potentiometer
    中文描述: 四數(shù)字控制(數(shù)字電位器)電位
    文件頁數(shù): 15/25頁
    文件大?。?/td> 549K
    代理商: X9251UB24-2.7
    X9251
    Characteristics subject to change without notice.
    15 of 25
    REV 1.3.3 2/10/04
    www.xicor.com
    ABSOLUTE MAXIMUM RATINGS
    Temperature under bias ....................–65
    °
    C to +135
    °
    C
    Storage temperature.........................–65
    °
    C to +150
    °
    C
    Voltage on SCK, any address input, V
    CC
    with respect to V
    SS
    ..................................–1V to +7V
    V = | (V
    H
    –VL) | ...................................................5.5V
    Lead temperature (soldering, 10 seconds).........300
    °
    C
    I
    W
    (10 seconds) .................................................±6mA
    COMMENT
    Stresses above those listed under “Absolute Maximum
    Ratings” may cause permanent damage to the device.
    This is a stress rating only; the functional operation of
    the device (at these or any other conditions above
    those listed in the operational sections of this
    specification) is not implied. Exposure to absolute
    maximum rating conditions for extended periods may
    affect device reliability.
    ANALOG CHARACTERISTICS
    (Over recommended industrial operating conditions unless otherwise stated.)
    Notes:
    (1) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used
    as a potentiometer.
    (2) Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a
    potentiometer. It is a measure of the error in step size.
    (3) MI = RTOT / 255 or (R
    H
    – R
    ) / 255, single pot
    (4) During power up V
    CC
    > V
    H
    , V
    L
    , and V
    W
    .
    (5) n = 0, 1, 2, …,255; m =0, 1, 2, …, 254.
    Symbol
    R
    TOTAL
    R
    TOTAL
    Parameter
    Limits
    Test Conditions
    T version
    U version
    Min.
    Typ.
    100
    50
    Max.
    Units
    k
    k
    %
    mW
    mA
    End to End Resistance
    End to End Resistance
    End to End Resistance Tolerance
    Power Rating
    Wiper Current
    Wiper Resistance
    ±20
    50
    ±3
    300
    25
    °
    C, each pot
    I
    W
    R
    W
    I
    W
    =
    @ V
    CC
    = 3V
    150
    I
    W
    =
    @ V
    CC
    = 5V
    V
    TERM
    Voltage on any R
    H
    or R
    L
    Pin
    Noise
    Resolution
    Absolute Linearity
    (1)
    V
    SS
    V
    CC
    V
    V
    SS
    = 0V
    -120
    0.4
    dBV
    /
    Hz
    Ref: 1V
    %
    MI
    (3)
    -1
    +1
    R
    w(n)(actual)
    – R
    w(n)(expected)
    (5)
    Relative Linearity
    (2)
    -0.6
    +0.6
    MI
    (3)
    R
    w(n + 1)
    – [R
    w(n) + MI
    ]
    (5)
    Temperature Coefficient of R
    TOTAL
    Ratiometric Temp. Coefficient
    Potentiometer Capacitances
    ±
    300
    ppm/
    °
    C
    ppm/°C
    pF
    -20
    +20
    C
    H
    /C
    L
    /C
    W
    10/10/25
    See Macro model
    V(V
    CC
    )
    R
    TOTAL
    V(V
    CC
    )
    R
    TOTAL
    RECOMMENDED OPERATING CONDITIONS
    Temp
    Commercial
    Industrial
    Min.
    0
    °
    C
    –40
    °
    C
    Max.
    +70
    °
    C
    +85
    °
    C
    Device
    X9251
    X9251-2.7
    Supply Voltage (V
    CC
    )
    (4)
    Limits
    5V
    ±
    10%
    2.7V to 5.5V
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