1. Products
  2. Amplifiers
  3. Operational Amplifiers (Op Amps)
  4. Low Power Op Amps (≤ 1mA/amp)
  5. MAX40018


Features and Benefits

  • Ultra-Low Power Preserves Battery Life
    • 400nA Typical Supply Current (Per Channel)
  • Single 1.7V to 5.5V Supply Voltage Range
    • The Device Can be Powered From the Same 1.8V/2.5V/3.3V/5V System Rails
  • Tiny Packages Save Board Space
    • 1.63mm x 0.91mm x 0.5mm WLP-8 with 0.4mm Bump Pitch
    • 3mm x 3mm x 0.75mm TDFN-8 Package
  • Precision Specifications for Buffer/Filter/Gain Stages
    • Low 350μV Input Offset Voltage
    • Rail-to-Rail Output Voltage
    • 9kHz GBP
    • Low 0.1pA Input Bias Current
    • Unity-Gain Stable
  • -40°C to +125°C Temperature Range

Product Details

The MAX40018 is a dual operational amplifier that consumes only 400nA supply current (per channel). At such low power consumption, the device is ideal for battery-powered applications such as portable medical equipment, portable instruments and wireless handsets.

The MAX40018 operates from a single 1.7V to 5.5V supply, allowing the device to be powered by the same 1.8V, 2.5V, or 3.3V nominal supply that powers the microcontroller. The MAX40018 features rail-to-rail outputs and is unity-gain stable with a 9kHz gain bandwidth product (GBP).

The ultra-low supply current, ultra-low input bias current, low operating voltage, and rail-to-rail output capabilities make this dual operational amplifier ideal for use with single lithium-ion (Li+), or two-cell NiCd or alkaline batteries.

The MAX40018 is available in a tiny, 8-bump, 1.63mm x 0.91mm wafer-level package (WLP), with a bump pitch of 0.4mm, as well as in an 8-pin 3mm x 3mm TDFN package. The device is specified over the -40°C to +125°C, automotive temperature range.


  • Handheld Devices
  • Notebook and Tablet Computers
  • Portable Instrumentation
  • Portable Medical Devices
  • Wearable Devices

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Tools & Simulations


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Product Recommendations

MAX40018 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX40018ANA+ Material Declaration Reliability Data 8-WLCSP-N/A
MAX40018ANA+T Material Declaration Reliability Data 8-WLCSP-N/A
MAX40018ATA+ Material Declaration Reliability Data Thin Dual Flatpack No Leads, Exposed Pad
MAX40018ATA+T Material Declaration Reliability Data Thin Dual Flatpack No Leads, Exposed Pad
Wafer Fabrication Data

Sample & Buy

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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.