MAX4074BKESA

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4074BKESA is a micropower, fixed-gain operational amplifier from the GainAmp family by Analog Devices/Maxim Integrated. It operates on a single +2.5V to +5.5V supply with a typical current consumption of 34µA. The device features factory-trimmed internal gain-setting resistors providing 0.1% accuracy and is housed in an 8-pin SO package. It offers high-voltage fault protection up to ±17V at the inputs and maintains rail-to-rail output swing while driving loads as low as 1kΩ.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrated laser-trimmed gain-setting resistors for precise amplification
• High-voltage input fault protection withstands ±17V without damage
• Rail-to-rail output capability drives 1kΩ loads effectively
• Micropower operation consumes only 34µA per amplifier

Instrumentation, Op Amps, Buffer Amps Applications

• Portable battery-powered equipment
• Instruments, terminals, and bar-code readers
• Photodiode preamplifiers
• Low-side current-sense amplifiers
• Smart-card readers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific gain code suffix required for the desired amplification factor, as the base part number requires this addition. Confirm that the 8-pin SO package aligns with your PCB footprint requirements. Ensure the operating temperature range meets your system specifications before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when space-saving design and reduced bill-of-materials are priorities due to integrated gain resistors. It is suitable for applications requiring high DC accuracy and robust input protection against voltage spikes. Consider the available gain options in the selector guide to match signal conditioning needs.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the MAX4074–MAX4078 GainAmp family, which combines low-cost rail-to-rail op amps with precision internal resistors. Unlike open-loop variants like the MAX4076, this model provides fixed gain configurations directly, simplifying circuit design and layout for standard amplification tasks.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct replacements within the same family include other MAX4074 variants with different gain codes or packages. Verify that any substitute maintains the required gain accuracy and fault protection levels.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the MAX4074 handle overdriven inputs?

The device includes ±17V input fault protection via back-to-back SCR structures and diode clamps, limiting input current to less than 3.5mA to prevent damage.

What is the maximum capacitive load the amplifier can drive?

The amplifier is stable with capacitive loads up to 100pF without an isolation resistor. Higher capacitance may require a series isolation resistor for stability.