400MHz, Ultra-Low-Distortion Op Amps

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The MAX4108/MAX4109/MAX4308/MAX4309 op amps combine ultra-high-speed performance with ultra-low-distortion operation. The MAX4108 is compensated for unity-gain stability; the MAX4109, MAX4308, and MAX4309 are compensated for minimum closed-loop gains (AVCL) of 2V/V, 5V/V, and 10V/V, respectively.

The MAX4108 delivers a 400MHz unity-gain bandwidth with a 1200V/µs slew rate. An ultra-low-distortion design provides an unprecedented spurious-free dynamic range of -93dBc (MAX4108) at 5MHz (VOUT = 2VP-P, RL = 100Ω), making these amplifiers ideal for high-performance RF signal processing.

These high-speed op amps feature a wide output voltage swing and a high-current output-drive capability of 90mA.
MAX4108, MAX4109, MAX4308, MAX4309: Typical Application Circuit MAX4108, MAX4109, MAX4308, MAX4309: Typical Application Circuit Enlarge+

Key Features

  • High Speed:
    • 400MHz Unity-Gain Bandwidth (MAX4108)
    • 225MHz -3dB Bandwidth (AVCL = +2, MAX4109)
    • 220MHz -3dB Bandwidth (AVCL = +5, MAX4308)
    • 200MHz -3dB Bandwidth (AVCL = +10, MAX4309)
  • 1200V/µs Slew Rate
  • Excellent Spurious-Free Dynamic Range:
    • -93dBc at fC = 5MHz (MAX4108)
    • -90dBc at fC = 5MHz (MAX4109)
  • 100MHz 0.1dB Gain Flatness (MAX4108)
  • High Full-Power Bandwidth: 300MHz (MAX4108, VO = 2VP-P)
  • High Output Drive: 90mA
  • Output Short-Circuit Protected
  • Low Differential Gain/Phase: 0.004%/0.008°


  • Active Filters
  • Broadcast and High-Definition TV Systems
  • High-Performance Receivers
  • High-Speed ADC/DAC Preamp
  • Pulse/RF Amplifier
  • RGB and Composite Video
  • Ultrasound
Request Reliability Report for: MAX4309 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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