MAX4078ESD

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4078ESD is a quad, open-loop, unity-gain-stable operational amplifier from the GainAmp family. It operates on a single +2.5V to +5.5V supply with a typical supply current of 34µA per amplifier. The device features rail-to-rail outputs capable of driving a 1kΩ load and maintains stability with capacitive loads up to 100pF. Key electrical parameters include a gain-bandwidth product of 230kHz, an input bias current of 12pA maximum, and an input offset voltage of 1.2mV typical. It functions within a temperature range of -40°C to +70°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Open-loop architecture optimized for unity-gain stability
• Rail-to-rail output capability supporting low-voltage loads
• Capacitive load stability without isolation resistors

Instrumentation, Op Amps, Buffer Amps Applications

• Portable battery-powered equipment
• Photodiode preamplifiers
• Low-side current-sense amplifiers
• Infrared receivers for remote controls

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific package type and temperature grade against the datasheet ordering information. Confirm that the application requirements align with the open-loop, unity-gain-stable configuration rather than fixed-gain variants. Ensure power supply constraints remain within the specified operating range.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a quad op amp with rail-to-rail output and low quiescent current is required. It is suitable for designs needing unity-gain stability and capacitive load drive capability. Consider alternative GainAmp models if fixed internal gains or higher bandwidths are necessary.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the Maxim Integrated GainAmp family, which integrates precision internal gain-setting resistors in some variants. The MAX4078 specifically provides four independent open-loop amplifiers, distinguishing it from the fixed-gain MAX4074/MAX4075 series while sharing similar power and packaging characteristics.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Compatible substitutes within the same family include MAX4076 (single) and MAX4077 (dual). Verify pinout compatibility and ensure the replacement matches the quad channel count and open-loop functionality.