Dual nanoPower Op Amps in Tiny WLP and TDFN Packages

Saves Power and Board Space in Mobile Devices — Op Amp Consumes Only 350nA per Amplifier

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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.
MAX40018: Simplified Block Diagram MAX40018: Simplified Block Diagram Enlarge+

Key Features

  • 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


  • Handheld Devices
  • Notebook and Tablet Computers
  • Portable Instrumentation
  • Portable Medical Devices
  • Wearable Devices
Part NumberAmps.Rail to RailVSUPPLY (Total)
ICC per Amp.
Low Input Bias CMOS InputsInput IBIAS
Unity Gain BW
Slew Rate
minmaxtypmaxtyptypmaxtyptypSee Notes
MAX40018 2Output Only1.75.50.413009588Yes0.20.0090.064
$0.76 @1k
See All Operational Amplifiers (172)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX40018EVKIT: Evaluation Kit for the MAX40018
MAXNANOPWRBD: Evaluation Kit for the MAX32660, MAX11615, MAX40018, MAX9119, MAX9634, MAX17222

Quality and Environmental Data

Request Reliability Report for: MAX40018 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX40018ANA+
  • MAX40018ANA+T
  • MAX40018ATA+
  • MAX40018ATA+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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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