MAX4490AUK+T

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4490AUK+T is a single-channel, low-cost CMOS operational amplifier featuring rail-to-rail input and output capabilities. It operates from a single 2.7V to 5.5V supply or dual ±1.35V to ±2.75V supplies. Key electrical parameters include a 10MHz gain-bandwidth product, a 10V/µs slew rate, and an input bias current of 50pA. The device maintains unity-gain stability with capacitive loads up to 300pF and drives resistive loads to within 55mV of either supply rail. It is housed in an ultra-small 5-pin SC70 package and is guaranteed over the automotive temperature range of -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input common-mode voltage range and output voltage swing capability
• High slew rate of 10V/µs and gain-bandwidth product of 10MHz
• Unity-gain stable operation with capacitive loads up to 300pF
• Ultra-small 5-pin SC70 surface-mount package

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered instruments
• Portable equipment
• Audio signal conditioning
• Sensor amplifiers
• RF power amplifier control

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'AUK' corresponds to the SC70-5 package and the '-40°C to +125°C' temperature grade as documented in the ordering information table. Confirm that the '+T' designation indicates tape-and-reel packaging if required for automated assembly processes. Ensure compatibility with the specified single-supply voltage range of 2.7V to 5.5V during component sourcing.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when board space is limited due to its compact SC70 footprint. It is suitable for applications requiring high-speed signal processing with a 10MHz bandwidth and 10V/µs slew rate. Consider its rail-to-rail I/O characteristics for low-voltage systems operating between 2.7V and 5.5V. Verify that the 50pA input bias current meets the requirements for high-impedance sensor interfaces.

Instrumentation, Op Amps, Buffer Amps Part Context

The MAX4490 is part of the MAX4490/MAX4491/MAX4492 family of low-cost CMOS op amps. While the MAX4490 provides a single channel, the MAX4491 offers dual channels and the MAX4492 provides four channels. All variants share identical electrical specifications and are available in various packages including SOT23-5, µMAX, TSSOP, and SO, catering to different density and pin-count requirements.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct functional substitutes within the same family include the MAX4491 (dual channel) and MAX4492 (quad channel), provided additional channels are acceptable. For single-channel replacements, verify package compatibility, specifically the SC70-5 form factor, and ensure the alternative device supports the required 2.7V to 5.5V supply range and automotive temperature specifications.