Ultra-Small, Ultra-Thin, 4-Bump Op Amp


The MAX44281 is the industry’s first op amp in a 4-bump WLP package, designed for use in portable consumer and medical applications. This device is offered as a noninverting amplifier with gain (AV) of +1V/V, +2V/V, or +10V/V.The device features rail-to-rail output, low 100µV input voltage offset, and 15MHz of bandwidth with only 700µA of supply current.
Ultra-Small, Ultra-Thin, 4-Bump Op Amp
The device features shutdown functionality by pulling VDDto ground. During shutdown, both the input and the output are high impedance.The device is available in an ultra-small, 0.86mm x 0.86mm, 4-bump WLP package with 0.5mm height. It is specified over the -40°C to +125°C temperature range.

Key Features

  • 0.86mm x 0.86mm 4-Bump Thin WLP Package
  • Low 100µV Input Offset Voltage
  • Rail-to-Rail Output
  • 15MHz GBW with Only 700µA Supply Current
  • Shutdown Input Through VDD
  • Ultra-Low 10pA Input Bias Current
  • 1.8V to 5.5V Wide Supply Range
  • Three Gain Versions Available
    • 1V/V (MAX442810)
    • 2V/V (MAX44281V)
    • 10/V (MAX44281U)


  • 3G/4G Handsets
  • Battery-Powered Devices
  • General-Purpose Signal Processing
  • Notebooks
  • Portable Medical Devices
  • Sensor Interfaces
  • Transimpedance Amplifiers

About The Author

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

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