LMX358AUA

Instrumentation, Op Amps, Buffer Amps Overview

The LMX358AUA is a dual-channel, low-voltage operational amplifier manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +2.3V to +7V supply and features rail-to-rail output swing. The device draws 105µA of quiescent current per amplifier at VCC = +2.7V and offers a gain-bandwidth product of 1.3MHz. It is unity-gain stable and can drive capacitive loads up to 400pF. The input common-mode voltage range extends below ground (VEE - 0.2V). The component is housed in an 8-pin µMAX package and supports an operating temperature range of -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail output capability with extended input common-mode range extending below ground
• Low power consumption with 105µA quiescent current per amplifier
• Unity-gain stability capable of driving capacitive loads up to 400pF
• No phase reversal for overdriven inputs and no crossover distortion

Instrumentation, Op Amps, Buffer Amps Applications

• Cellular Phones
• Laptops
• Portable/Battery-Powered Equipment
• Active Filters

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix 'AUA' corresponds to the µMAX-8 package code U8-1 and tape-and-reel delivery format as indicated in the manufacturer's selector guide. Confirm that the industrial temperature grade (-40°C to +125°C) matches the design requirements. Ensure compatibility with the 8-pin footprint dimensions provided in the package outline drawings before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a dual-channel op amp with rail-to-rail output is required in space-constrained portable designs. It serves as a pin-to-pin compatible upgrade to the LMV358 family. Consider its 1.3MHz bandwidth and 105µA current draw for battery-powered applications where moderate speed and low power are prioritized over high precision or high-speed slew rates.

Instrumentation, Op Amps, Buffer Amps Part Context

The LMX358AUA belongs to the LMX3xx series, which includes single (LMX321), dual (LMX358), and quad (LMX324) general-purpose amplifiers. This series is designed as a low-cost, low-voltage alternative to the LMV3xx family, offering similar performance characteristics such as rail-to-rail outputs and extended input common-mode ranges while maintaining small package footprints suitable for modern compact electronics.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The datasheet identifies the LMX358 as a pin-to-pin compatible upgrade to the LMV358. Designers replacing LMV358 components should verify that the supply voltage range (+2.3V to +7V) and electrical specifications meet the original circuit requirements.