1. Products
  2. Amplifiers
  3. Operational Amplifiers (Op Amps)
  4. Low Input Bias Current Op Amps (≤100 pA)
  5. MAX4403


Features and Benefits

  • 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)

Product Details

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.


  • Automotive
  • Electronic Ignition Modules
  • Infrared Receivers
  • Instruments and Terminals
  • Portable Communications
  • Sensor Signal Detection
  • Single-Supply, Zero-Crossing Detectors

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations

SPICE Models

Product Recommendations

MAX4403 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
MAX4403ASD+ Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
MAX4403ASD+T Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
MAX4403AUD+ Material Declaration Reliability Data Thin Shrink Small-Outline Package
MAX4403AUD+T Material Declaration Reliability Data Thin Shrink Small-Outline Package
Wafer Fabrication Data MAX4403 Reliability Data

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Sample & Buy

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Buy Now Pricing

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List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

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