MAX4958ETB+T

Overview

The MAX495ETB+T is a single-channel, micropower operational amplifier from the MAX492/MAX494/MAX495 family. It features rail-to-rail input and output capabilities, allowing operation with supply voltages ranging from +2.7V to +6V or split supplies of ±1.35V to ±3V. The device draws less than 150µA of quiescent current per amplifier while maintaining high DC accuracy. Key electrical specifications include a gain-bandwidth product of 500kHz, an offset voltage of 200µV, and a large-signal voltage gain of 108dB. It is unity-gain stable and capable of driving loads exceeding 1nF.

Feature Summary

• Rail-to-rail input common-mode voltage range extending beyond supply rails without phase reversal
• Rail-to-rail output swing capability for maximum dynamic range in low-voltage applications
• Micropower consumption with less than 150µA supply current per amplifier
• High precision performance including low offset voltage and high voltage gain

Applications

• Portable equipment
• Battery-powered instruments
• Data acquisition systems
• Signal conditioning circuits
• Low-voltage analog applications

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and package integrity upon receipt. Check for obsolescence notices as the part may be designated Not Recommended for New Designs due to manufacturing process changes. Ensure storage conditions meet specified humidity sensitivity levels to prevent damage prior to assembly.

Selection Notes

Select this component for designs requiring single-supply operation with minimal power consumption. The rail-to-rail I/O makes it suitable for battery-operated devices where signal headroom is critical. Consider the 500kHz bandwidth for moderate-speed signal processing tasks. Verify that the load requirements do not exceed the capacitive drive stability limits without isolation resistors.

Part Context

This part belongs to the MAX49x series of single/dual/quad micropower op amps. It shares architectural similarities with the MAX492 (dual) and MAX494 (quad). The ETB suffix indicates a specific temperature range and packaging configuration within the Maxim Integrated portfolio. The datasheet notes that the MAX495 was manufactured by an outside foundry using a discontinued process.

Replacement Considerations

The datasheet explicitly states the MAX495 is Not Recommended for New Designs. Users should consult technical support for available replacement parts or industry second-sources. No specific substitute part numbers are listed in the provided documentation.