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TI(德州仪器) LF444QML
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  • TI(德州仪器) LF444QML
  • TI(德州仪器) LF444QML
  • TI(德州仪器) LF444QML
  • TI(德州仪器) LF444QML
  • TI(德州仪器) LF444QML
  • TI(德州仪器) LF444QML
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LF444QML

LF444QML

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汽车级、四通道、30V、1MHz、低功耗运算放大器

产品详情
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  • 特性
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  • 封装 | 引脚 | 尺寸

The LF444 quad low power operational amplifier provides many of the same AC characteristics as the industry standard LM148 while greatly improving the DC characteristics of the LM148. The amplifier has the same bandwidth, slew rate, and gain (10 kΩ load) as the LM148 and only draws one fourth the supply current of the LM148. In addition the well matched high voltage JFET input devices of the LF444 reduce the input bias and offset currents by a factor of 10,000 over the LM148. The LF444 also has a very low equivalent input noise voltage for a low power amplifier.

The LF444 is pin compatible with the LM148 allowing an immediate 4 times reduction in power drain in many applications. The LF444 should be used wherever low power dissipation and good electrical characteristics are the major considerations.


  • ¼ supply current of a LM148:  250 μA/Amplifier (max)
  • Low input bias current: 100 pA (max)
  • High gain bandwidth: 1 MHz
  • High slew rate: 1 V/μs
  • Low noise voltage for low power 
  • Low input noise current 
  • High input impedance: 10 12 Ω
  • High gain, VO = ±10V, RL = 10KΩ: 25K (min)

  • Number of channels4
    Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)18
    Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)6
    Rail-to-railNo
    GBW (typ) (MHz)1
    Slew rate (typ) (V/µs)1
    Vos (offset voltage at 25°C) (max) (mV)10
    Iq per channel (typ) (mA)0.15
    Vn at 1 kHz (typ) (nV√Hz)35
    RatingMilitary
    Operating temperature range (°C)-55 to 125
    Offset drift (typ) (µV/°C)10
    Input bias current (max) (pA)100
    CMRR (typ) (dB)100
    Iout (typ) (A)0.02
    ArchitectureFET
    Input common mode headroom (to negative supply) (typ) (V)3
    Input common mode headroom (to positive supply) (typ) (V)-1
    Output swing headroom (to negative supply) (typ) (V)2
    Output swing headroom (to positive supply) (typ) (V)-2
    CDIP_SB (NAK)14117.3753 mm² 18.03 x 6.51
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