MAX4465EUK+T

Audio Amplifiers Overview

The MAX4465EUK+T is a single-channel micropower operational amplifier optimized for microphone preamplifier applications. It operates from a supply voltage range of +2.4V to +5.5V and consumes a typical quiescent supply current of 24µA. The device features a gain bandwidth product of 200kHz, a slew rate of 45mV/µs, and an input offset voltage of ±1mV. It provides rail-to-rail output swing, high open-loop gain (125dB), excellent power-supply rejection ratio (112dB), and common-mode rejection ratio (126dB). The component is housed in a 5-pin SOT-23 package and supports an operating temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Optimized for microphone preamplifiers with low quiescent supply current
• Rail-to-Rail output stage capable of driving loads near supply rails
• High common-mode and power-supply rejection ratios for noisy environments
• Unity-gain stable configuration with space-saving packaging

Audio Amplifiers Applications

• Microphone Preamplifiers
• Hearing Aids
• Cellular Phones
• Voice-Recognition Systems
• Portable Computing

Audio Amplifiers Procurement Notes

Verify the specific ordering suffix 'EUK' corresponds to the 5-pin SOT-23 package variant rather than SC70. Confirm RoHS compliance status via the manufacturer's official documentation. Ensure the application circuit matches the unity-gain stability requirements specified for this part number. Check for any regional distribution restrictions or obsolescence notices directly from Analog Devices.

Audio Amplifiers Selection Notes

Select this component when designing low-power audio front-ends requiring minimal supply current. It is suitable for battery-operated devices where ultra-small footprint is critical. Choose this over decompensated variants if unity-gain stability is required without external compensation components. Consider the MAX4467 series if shutdown functionality is needed.

Audio Amplifiers Part Context

This device belongs to the MAX4465–MAX4469 family of micropower op amps designed specifically for microphone preamplification. Unlike other members that offer shutdown modes or higher bandwidth, the MAX4465 focuses on basic unity-gain stability and low cost. It shares the same electrical core as the MAX4467 but lacks the shutdown pin, offering a simpler interface for constant-on applications.

Audio Amplifiers Replacement Considerations

Direct functional substitutes within the same package include the MAX4465EXK+T (SC70 package) and MAX4467EUK+T (SOT-23 package with shutdown). Verify pin compatibility and thermal dissipation limits when swapping between package types.