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    參數(shù)資料
    型號: AD5252BRU50-RL7
    廠商: Analog Devices Inc
    文件頁數(shù): 23/28頁
    文件大?。?/td> 0K
    描述: IC DCP DUAL 50K 256POS 14TSSOP
    標(biāo)準(zhǔn)包裝: 1,000
    接片: 256
    電阻(歐姆): 50k
    電路數(shù): 2
    溫度系數(shù): 標(biāo)準(zhǔn)值 650 ppm/°C
    存儲器類型: 非易失
    接口: I²C(設(shè)備位址)
    電源電壓: 2.7 V ~ 5.5 V,±2.25 V ~ 2.75 V
    工作溫度: -40°C ~ 85°C
    安裝類型: 表面貼裝
    封裝/外殼: 14-TSSOP(0.173",4.40mm 寬)
    供應(yīng)商設(shè)備封裝: 14-TSSOP
    包裝: 帶卷 (TR)
    AD5251/AD5252
    Data Sheet
    Rev. D | Page 4 of 28
    Parameter
    Symbol
    Conditions
    Min
    Typ1
    Max
    Unit
    DIGITAL INPUTS AND OUTPUTS
    Input Logic High
    V
    IH
    V
    DD = 5 V, VSS = 0 V
    2.4
    V
    DD/VSS = 2.7 V/0 V or VDD/VSS = ± 2.5 V
    2.1
    V
    Input Logic Low
    V
    IL
    V
    DD = 5 V, VSS = 0 V
    0.8
    V
    Output Logic High (SDA)
    V
    OH
    R
    PULL-UP = 2.2 k to VDD = 5 V, VSS = 0 V
    4.9
    V
    Output Logic Low (SDA)
    V
    OL
    R
    PULL-UP = 2.2 k to VDD = 5 V, VSS = 0 V
    0.4
    V
    WP Leakage Current
    I
    WP
    WP = VDD
    8
    A
    A0 Leakage Current
    I
    A0
    A0 = GND
    3
    A
    Input Leakage Current
    (Other than WP and A0)
    I
    V
    IN = 0 V or VDD
    ±1
    A
    Input Capacitance5
    C
    I
    5
    pF
    POWER SUPPLIES
    Single-Supply Power Range
    V
    DD
    V
    SS = 0 V
    2.7
    5.5
    V
    Dual-Supply Power Range
    V
    DD/VSS
    ±2.25
    ±2.75
    V
    Positive Supply Current
    I
    DD
    V
    IH = VDD or VIL = GND
    5
    15
    A
    Negative Supply Current
    I
    SS
    V
    IH = VDD or VIL = GND, VDD = 2.5 V,
    V
    SS = –2.5 V
    –5
    –15
    A
    EEMEM Data Storing Mode Current
    I
    DD_STORE
    V
    IH = VDD or VIL = GND
    35
    mA
    EEMEM Data Restoring Mode
    Current6
    I
    DD_RESTORE
    V
    IH = VDD or VIL = GND
    2.5
    mA
    Power Dissipation7
    P
    DISS
    V
    IH = VDD = 5 V or VIL = GND
    0.075
    mW
    Power Supply Sensitivity
    PSS
    ΔV
    DD = 5 V ± 10%
    0.025
    +0.010
    +0.025
    %/%
    ΔV
    DD = 3 V ± 10%
    –0.04
    +0.02
    +0.04
    %/%
    DYNAMIC CHARACTERISTICS5, 8
    Bandwidth –3 dB
    BW
    R
    AB = 1 k
    4
    MHz
    Total Harmonic Distortion
    THD
    V
    A = 1 V rms, VB = 0 V, f = 1 kHz
    0.05
    %
    V
    W Settling Time
    t
    S
    V
    A = VDD, VB = 0 V
    0.2
    s
    Resistor Noise Voltage
    e
    N_WB
    R
    WB = 500 , f = 1 kHz
    (thermal noise only)
    3
    nV/√Hz
    Digital Crosstalk
    C
    T
    V
    A = VDD, VB = 0 V, measure VW with
    adjacent RDAC making full-scale
    change
    –80
    dB
    Analog Coupling
    C
    AT
    Signal input at A1 and measure the
    output at W3, f = 1 kHz
    –72
    dB
    1 Typical values represent average readings at 25°C and V
    DD = 5 V.
    2 Resistor position nonlinearity error (R-INL) is the deviation from an ideal value measured between the maximum and minimum resistance wiper positions. R-DNL is the
    relative step change from an ideal value measured between successive tap positions. Parts are guaranteed monotonic, except R-DNL of AD5252 1 k version at VDD =
    2.7 V, IW = VDD/R for both VDD = 3 V and VDD = 5 V.
    3 INL and DNL are measured at V
    W with the RDAC configured as a potentiometer divider, similar to a voltage output digital-to-analog converter. VA = VDD and VB = 0 V.
    DNL specification limits of ±1 LSB maximum are guaranteed monotonic operating conditions.
    4 Resistor Terminal A, Terminal B, and Terminal W have no limitations on polarity with respect to each other.
    5 Guaranteed by design and not subject to production test.
    6 Command 0 NOP should be activated after Command 1 to minimize I
    DD_READ current consumption.
    7 P
    DISS is calculated from IDD × VDD = 5 V.
    8 All dynamic characteristics use V
    DD = 5 V.
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