Low-Cost, High-Slew-Rate, Rail-to-Rail I/O Op Amps in SC70

10MHz Op Amp Comes in Ultra-Small SC70 Package and Drives 2kΩ Loads

Please check latest availability status for a specific part variant.


The MAX4490/MAX4491/MAX4492 single/dual/quad, low-cost CMOS op amps feature rail-to-rail input and output capability from either a single +2.7V to +5.5V supply or dual ±1.35V to ±2.75V supplies. These amplifiers exhibit a high slew rate of 10V/µs and a gain-bandwidth product of 10MHz. They can drive 2kΩ resistive loads to within 55mV of either supply rail and remain unity-gain stable with capacitive loads up to 300pF.

The MAX4490 is offered in the ultra-small, 5-pin SC70 package, which is 50% smaller than the standard 5-pin SOT23 package. Specifications for all parts are guaranteed over the automotive (-40°C to +125°C) temperature range.
MAX4490, MAX4491, MAX4492: Pin Configurations/Functional Diagrams MAX4490, MAX4491, MAX4492: Pin Configurations/Functional Diagrams Enlarge+

Key Features

  • +2.7V to +5.5V Single-Supply Operation
  • 10V/µs Slew Rate
  • Rail-to-Rail Input Common-Mode Voltage Range
  • Rail-to-Rail Output Voltage Swing
  • 10MHz Gain-Bandwidth Product
  • Unity-Gain Stable with Capacitive Loads Up to 300pF
  • 50pA Input Bias Current
  • Ultra-Small, 5-Pin SC70 Package (MAX4490)


  • Audio Signal Conditioning
  • Automotive Sensors
  • Base Station/Wireless Infrastructure
  • Battery-Powered Applications
  • Cellular Handsets
  • Computers: Desktops, Workstations, and Servers
  • Computers: Motherboards
  • Computers: Notebook
  • GPS Solutions
  • High-Side/Low-Side Current Sensors
  • Low-Power, Low-Voltage Applications
  • Portable Equipment
  • RF Power Amplifier Control
  • Sensor Amplifiers

See parametric specs for Operational Amplifiers (175)

Part NumberAmps.Rail to RailICC per Amp.
Unity Gain BW
Slew Rate
typminmaxmaxtyptypmaxtyptyp<See Notes
MAX4490 1Input/Output8002.75.510000751002.5101012
$0.80 @1k
MAX4491 2
$1.40 @1k
MAX4492 4
SOIC (N)/14
$2.50 @1k

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.
Request Reliability Report for: MAX4492 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

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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