MAX4274AKEUA+T

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4274AKEUA+T is a fixed-gain amplifier from the GainAmp family, combining a rail-to-rail op amp with factory-trimmed internal gain-setting resistors. It operates on a single +2.5V to +5.5V supply and consumes 300µA per amplifier. The device provides noninverting gains ranging from +1.25V/V to +101V/V with 0.1% gain accuracy. It features high-voltage fault protection capable of withstanding ±17V at either input without excessive current draw. The output can swing rail-to-rail while driving a 1kΩ load.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrates precision internal gain-setting resistors for simplified design
• Provides rail-to-rail outputs that drive 1kΩ loads
• Includes high-voltage fault protection withstands ±17V inputs
• Maintains stability with capacitive loads up to 470pF

Instrumentation, Op Amps, Buffer Amps Applications

• Portable Instruments
• Smart-Card Readers
• Infrared Receivers for Remote Controls
• Keyless Entry Systems
• Low-Side Current-Sense Amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific gain code suffix 'AK' against the manufacturer's Gain Selection Guide to confirm the exact closed-loop gain value. Ensure the package type matches the required PCB footprint. Confirm RoHS compliance status if environmental regulations apply to the final assembly. Check for obsolescence or lifecycle status before finalizing procurement plans.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a fixed gain configuration is required to reduce board space and external resistor count. Choose the MAX4274 over open-loop variants when unity-gain stability is not needed and higher bandwidth at specific gains is desired. Verify that the required gain falls within the available standard options provided in the datasheet selection guide.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the Maxim Integrated GainAmp family, which merges low-cost operational amplifiers with precision laser-trimmed feedback networks. The series includes open-loop unity-gain stable versions (MAX428x) and fixed-gain variants (MAX4174/4274). This specific model represents the dual-channel fixed-gain option designed for single-supply applications requiring precise signal amplification.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct replacements include other members of the GainAmp family such as the MAX4174 series for single-channel configurations. Cross-reference the specific gain code 'AK' with the official Gain Selection Guide to identify equivalent gain values in alternative packages like µMAX or SO.