MAX9718DEUB+T

Audio Amplifiers Overview

The MAX9718DEUB+T is a mono-channel, low-cost audio power amplifier manufactured by Analog Devices (Maxim Integrated). It operates on a single supply voltage ranging from 2.7V to 5.5V and delivers 1.4W of continuous average power per channel into a 4Ω load with less than 1% THD+N at +5V. The device features a differential input structure for improved noise rejection and utilizes a bridge-tied load (BTL) architecture. It includes an internally fixed gain of 6dB, a shutdown mode reducing quiescent current to under 100nA, and comprehensive click-and-pop suppression circuitry. The component is housed in a 10-pin μMAX package and operates within a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Differential input structure providing common-mode rejection
• Bridge-tied load (BTL) architecture minimizing external components
• Internal fixed gain configuration to reduce component count
• Low-power shutdown mode with audible click-and-pop suppression

Audio Amplifiers Applications

• Mobile phones
• Personal digital assistants (PDAs)
• Portable audio devices with internal speakers

Audio Amplifiers Procurement Notes

Verify the specific suffix DEUB corresponds to the 10-pin μMAX package with a fixed 6dB gain. Confirm RoHS compliance status indicated by the '+' symbol. Ensure the ordering code matches the required thermal performance and pinout for the target PCB layout. Cross-reference the manufacturer's latest datasheet revision to confirm availability and any potential design changes.

Audio Amplifiers Selection Notes

Select this component for applications requiring high efficiency and minimal external parts in portable electronics. The fixed 6dB gain simplifies design compared to adjustable versions. Consider the BTL topology for higher output power without DC-blocking capacitors. Evaluate thermal dissipation requirements based on the specific package type and ambient operating conditions.

Audio Amplifiers Part Context

This part belongs to the MAX9718/MAX9719 family of low-cost, mono/stereo audio power amplifiers. The MAX9718 variant provides single-channel amplification, while the MAX9719 offers dual channels for stereo systems. Both share similar electrical characteristics and packaging options, designed specifically for battery-powered portable devices requiring high-quality audio output.

Audio Amplifiers Replacement Considerations

The MAX9718 is pin-compatible with the LM4895. Verify that the replacement device supports the same 10-pin μMAX package and fixed gain configuration. Ensure the substitute maintains comparable power delivery and shutdown current specifications.