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

 

Part Number	Replacement	Explanation

Description

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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 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)

Applications/Uses

• 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