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    參數(shù)資料
    型號: MAX4074BEEUK-T
    廠商: Maxim Integrated Products
    文件頁數(shù): 4/20頁
    文件大?。?/td> 0K
    描述: IC OPAMP GAIN 24 R-TO-R SOT23-5
    標準包裝: 2,500
    系列: GainAmp™
    放大器類型: 通用
    電路數(shù): 1
    輸出類型: 滿擺幅
    轉換速率: 0.1 V/µs
    -3db帶寬: 200kHz
    電流 - 輸入偏壓: 0.8pA
    電壓 - 輸入偏移: 200µV
    電流 - 電源: 37µA
    電流 - 輸出 / 通道: 22mA
    電壓 - 電源,單路/雙路(±): 2.5 V ~ 5.5 V
    工作溫度: -40°C ~ 70°C
    安裝類型: 表面貼裝
    封裝/外殼: SC-74A,SOT-753
    供應商設備封裝: SOT-23-5
    包裝: 帶卷 (TR)
    MAX4074–MAX4078
    Micropower, SOT23, Rail-to-Rail,
    Fixed-Gain, GainAmp/Open-Loop Op Amps
    12
    ______________________________________________________________________________________
    GainAmp Signal Coupling
    and Configurations
    Common op amp configurations include both noninvert-
    ing and inverting amplifiers. Figures 3–6 show various
    single- and dual-supply circuit configurations. In single-
    supply systems, use a resistor-divider to bias the nonin-
    verting input. A lowpass filter capacitor from the op amp
    input to ground (Figure 5) prevents high-frequency
    power-supply noise from coupling into the op amp input.
    Dual-supply systems can have ground-referenced sig-
    nals DC-coupled into the inverting or noninverting inputs.
    Supply Bypassing and Board Layout
    All devices in this GainAmp family operate from a +2.5V
    to +5.5V single supply or from ±1.25V to ±2.75V dual
    supplies. For single-supply operation, bypass the power
    supply with a 0.1F capacitor to ground. For dual sup-
    plies, bypass each supply to ground. Bypass with
    capacitors as close to the device as possible to mini-
    mize lead inductance and noise. A printed circuit board
    with a low-inductance ground plane is recommended.
    Capacitive-Load Stability
    Driving large capacitive loads can cause instability in
    most low-power, rail-to-rail output amplifiers. The fixed-
    gain amplifiers of this GainAmp family are stable with
    capacitive loads up to 100pF. Stability with higher
    capacitive loads can be improved by adding an isola-
    tion resistor in series with the op amp output, as shown
    in Figure 7. This resistor improves the circuit’s phase
    margin by isolating the load capacitor from the amplifi-
    er’s output. In Figure 8, a 220pF capacitor is driven with
    a 100
    isolation resistor exhibiting some overshoot but
    no oscillation. Figures 9 and 10 show the typical small-
    signal pulse responses of GainAmp fixed-gain ampli-
    fiers with 47pF and 100pF capacitive loads and no
    isolation resistor
    MAX4074
    VCC
    RG
    RF
    VIN
    VOUT =
    -RF
    (VIN)
    RG
    Figure 3. Single-Supply, DC-Coupled Inverting Amplifier with
    Negative Input Voltage
    MAX4074
    VEE
    VCC
    RG
    RF
    VIN
    VOUT = - VIN
    (
    RF )
    RG
    Figure 4. Dual-Supply, DC-Coupled Inverting Amplifier
    MAX4074
    VCC
    RG
    RF
    VIN
    0.1
    F
    VOUT =
    VCC
    - VIN
    (
    RF )
    2
    RG
    Figure 5. Single-Supply, AC-Coupled Inverting Amplifier
    MAX4074
    VEE
    VCC
    RG
    RF
    VIN
    VOUT = VIN
    (1+
    RF )
    RG
    Figure 6. Dual-Supply, DC-Coupled Noninverting Amplifier
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    MAX4074BFESA 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比(最小值):63 dB 輸入補償電壓:1 mV 輸入偏流(最大值):10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
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