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MAX477
300MHz、高速运算放大器


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概述
完整的数据资料 (PDF, 176kB)
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The MAX477 is a ±5V wide-bandwidth, fast-settling, unity-gain-stable op amp featuring low noise, low differential gain and phase errors, high slew rate, high precision, and high output current. The MAX477's architecture uses a standard voltage-feedback topology that can be configured into any desired gain setting, as with other general-purpose op amps.

Unlike high-speed amplifiers using current-mode feedback architectures, the MAX477 has a unique input stage that combines the benefits of the voltage-feedback design (flexibility in choice of feedback resistor, two high-impedance inputs) with those of the current-feedback design (high slew rate and full-power bandwidth). It also has the precision of voltage-feedback amplifiers, characterized by low input-offset voltage and bias current, low noise, and high common-mode and power-supply rejection.

The MAX477 is ideally suited for driving 50Ω or 75Ω loads. Available in DIP, SO, space-saving µMAX®, and SOT23 packages.

关键特性   应用/使用
  • High Speed:
    • 300MHz -3dB Bandwidth (AV = +1)
    • 200MHz Full-Power Bandwidth (AV = +1, Vo = 2Vp-p)
    • 1100V/µs Slew Rate
    • 130MHz 0.1dB Gain Flatness
  • Drives 100pF Capacitive Loads Without Oscillation
  • Low Differential Phase/Gain Error: 0.01°/0.01%
  • 8mA Quiescent Current
  • Low Input-Referred Voltage Noise: 5nV per root-Hz
  • Low Input-Referred Current Noise: 2pA per root-Hz
  • Low Input Offset Voltage: 0.5mV
  • 8000V ESD Protection
  • Voltage-Feedback Topology for Simple Design Configurations
  • Short-Circuit Protected
  • Available in Space-Saving SOT23 Package

 
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    图表
    MAX477:典型工作电路
    典型工作电路

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    参考文献: 19-0467; Rev. 3; 2001-02-22
    本页最后一次更新: 2007-11-30


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