Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown

Rail-to-Rail, 800kHz, Op Amps in Tiny SC70 and SOT23-8 Packages

Please check latest availability status for a specific part variant.


The MAX4400–MAX4403 low-cost, general-purpose op amps offer rail-to-rail outputs, draw only 320µA of quiescent current, and operate from a single +2.5V to +5.5V supply. For additional power conservation, the MAX4401 offers a low-power shutdown mode that reduces supply current to 1µA (max) and puts the amplifier's output in a high-impedance state. These devices deliver ±1.4mA of output current and are unity-gain stable with a 1MHz gain-bandwidth product driving capacitive loads up to 400pF. The MAX4400–MAX4403 are specified to +125°C, making them suitable for use in a variety of harsh environments, such as automotive applications.

The MAX4400 single amplifier is available in ultra-small 5-pin SC70 and space-saving 5-pin SOT23 packages. The single MAX4401 includes the shutdown feature and is available in a 6-pin SC70. The MAX4402 is a dual amplifier available in 8-pin SOT23, µMAX®, and SO packages. The MAX4403 quad amplifier is packaged in a 14-pin TSSOP or SO.

MAX4400, MAX4401, MAX4402, MAX4403: Pin Configurations MAX4400, MAX4401, MAX4402, MAX4403: Pin Configurations Enlarge+

Key Features

  • Single +2.5V to +5.5V Supply Voltage Range
  • 320µA Quiescent Current per Amplifier
  • 1µA (max) Shutdown Mode (MAX4401)
  • Available in Space-Saving Packages
    • 5-Pin SC70 (MAX4400)
    • 6-Pin SC70 (MAX4401)
    • 8-Pin SOT23/µMAX (MAX4402)
  • 110dB AVOL with 2kΩ Load
  • 0.015% THD with 2kΩ Load
  • Rail-to-Rail Output Voltage Swing
  • 1.4mA of Sink and Source Load Current
  • Unity-Gain Stable up to CLOAD = 400pF
  • Ground-Sensing Inputs
  • AEC-Q100 Qualified (MAX4402AKA/V+ and MAX4402AUA/V+ Only)


  • Automotive
  • Electronic Ignition Modules
  • Infrared Receivers
  • Instruments and Terminals
  • Portable Communications
  • Sensor Signal Detection
  • Single-Supply, Zero-Crossing Detectors
Part NumberAmps.Rail to RailVSUPPLY (Total)
ICC per Amp.
Low Input Bias CMOS InputsInput IBIAS
Unity Gain BW
Slew Rate
minmaxtypmaxtyptypmaxtyptyp<See Notes
MAX4400 1Output Only2.55.5320450084100Yes0.10.8136
$0.49 @1k
MAX4401 14500
$0.57 @1k
MAX4402 25500
SOIC (N)/8
$0.76 @1k
MAX4403 45500
SOIC (N)/14
$1.12 @1k
See All Operational Amplifiers (174)
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.

Technical Documents

App Note 4295 Small-Signal Bandwidth in a Big-Band Era

Quality and Environmental Data

Request Reliability Report for: MAX4401 
Lead-Free Package Tin (Sn) Whisker Reports
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.

Quality Management System >
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