超低失真、单电源、300MHz运算放大器，带有使能端

 

器件号	Replacement	Explanation

说明

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The MAX4265–MAX4270 ultra-low distortion, voltage-feed-back op amps are capable of driving a 100Ω load while maintaining ultra-low distortion over a wide bandwidth. They offer superior spurious-free dynamic range (SFDR) performance: -90dBc at 5MHz and -59dBc at 100MHz (MAX4269). Additionally, input voltage noise density is 8nV/ while operating from a single +4.5V to +8.0V supply or from dual ±2.25V to ±4.0V supplies. These features make the MAX4265–MAX4270 ideal for use in high-performance communications and signal-processing applications that require low distortion and wide bandwidth.

The MAX4265 single and MAX4268 dual amplifiers are unity-gain stable. The MAX4266 single and MAX4269 dual amplifiers are compensated for a minimum stable gain of +2V/V, while the MAX4267 single and MAX4270 dual amplifiers are compensated for a minimum stable gain of +5V/V.

For additional power savings, these amplifiers feature a low-power disable mode that reduces supply current and places the outputs in a high-impedance state. The MAX4265/MAX4266/MAX4267 are available in a space-saving 8-pin µMAX® package, and the MAX4268/MAX4269/MAX4270 are available in a 16-pin QSOP package.

MAX4265、MAX4266、MAX4267、MAX4268、MAX4269、MAX4270：引脚配置 放大+

关键特性

• Operates from +4.5V to +8.0V
• Superior SFDR with 100Ω Load
  • -90dBc (f_C = 5MHz)
  • -59dBc (f_C = 100MHz)
• 35dBm IP3 (f_C = 20MHz)
• 8nV/ Voltage Noise Density
• 100MHz 0.1dB Gain Flatness (MAX4268)
• 900V/µs Slew Rate
• ±45mA Output Driving Capability
• Disable Mode Places Outputs in High-Impedance State

应用

• 基站放大器
• 高频ADC驱动器
• 高频信号处理
• 高速DAC缓冲器
• 中频放大器
• 射频电信应用