MAX4274BJESA

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4274BJESA is a dual-channel fixed-gain amplifier from the GainAmp family, featuring factory-trimmed internal gain-setting resistors. It operates on a single +2.5V to +5.5V supply with a typical supply current of 300µA per amplifier. The device provides noninverting gains ranging from +1.25V/V to +101V/V and inverting gains from -0.25V/V to -100V/V. Key electrical characteristics include a slew rate of 0.7V/µs, an input offset voltage of ±0.5mV, and a bandwidth product up to 23MHz depending on the gain configuration.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrates precision laser-trimmed internal gain-setting resistors for high accuracy
• Features rail-to-rail outputs capable of driving 1kΩ loads
• Includes high-voltage fault protection on inputs withstandable up to ±17V
• Maintains stability with capacitive loads up to 470pF without isolation resistors

Instrumentation, Op Amps, Buffer Amps Applications

• Portable instruments
• Smart-card readers
• Infrared receivers and remote controls
• Keyless entry systems
• Low-side current-sense amplifiers
• Photodiode preamplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'BJ' against official manufacturer documentation to confirm temperature range and package specifications. Confirm availability status as this component series may be subject to discontinuation or lifecycle changes. Ensure the selected part number matches the required gain code within the GainAmp family selection guide.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a fixed gain configuration is required to minimize external resistor count and board space. Consider the MAX4274 over open-loop variants if precise gain accuracy is critical. Evaluate the available gain options to ensure the bandwidth requirements are met by the decompenated architecture.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the Maxim Integrated GainAmp family, which combines low-cost op amps with precision internal feedback networks. The family includes open-loop unity-gain stable versions (MAX428x) and fixed-gain variants (MAX4174/MAX4274). The dual-channel MAX4274 variant offers two independent amplifiers in a compact package.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult the manufacturer's selector guide for direct pin-compatible alternatives within the GainAmp family. Verify that substitute parts maintain the required gain accuracy and input fault protection levels.