MAX9725CEBC+

Audio Amplifiers Overview

The MAX9725CEBC+ is a fixed-gain stereo headphone amplifier from the DirectDrive series, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 0.9V to 1.8V and delivers up to 20mW per channel into a 32Ω load. The device features a fixed voltage gain of -1V/V, a quiescent current of 2.1mA, and a shutdown current of 0.6µA. It achieves a total harmonic distortion plus noise (THD+N) of 0.006% and includes integrated click-and-pop suppression with ±8kV ESD protection on outputs.

Audio Amplifiers Feature Summary

• DirectDrive architecture eliminates the need for large DC-blocking output capacitors by generating an internal negative supply via an inverting charge pump.
• Fixed -1V/V gain configuration removes the requirement for external feedback resistors, reducing component count.
• Integrated comprehensive click-and-pop suppression circuitry prevents audible transients during power-up and shutdown sequences.
• Low-power shutdown mode reduces supply current to 0.6µA when the SHDN pin is driven low.

Audio Amplifiers Applications

• Portable audio equipment
• Cellular phones
• MP3 players

Audio Amplifiers Procurement Notes

Verify the specific suffix 'CEBC' against official manufacturer documentation to confirm package type and temperature range. Confirm RoHS compliance status as indicated by the '+' designation. Check for obsolescence notices or lifecycle changes prior to finalizing procurement plans.

Audio Amplifiers Selection Notes

Select this part for designs requiring a ground-referenced output from a single-cell battery without external coupling capacitors. The fixed -1V/V gain suits applications where signal levels do not require amplification. Ensure input filtering components are selected to maintain low-frequency response below the audio band.

Audio Amplifiers Part Context

This component belongs to the MAX9725 family of 1V DirectDrive stereo headphone amplifiers. Variants within the family include adjustable gain versions and different fixed gains (-2V/V, -1.5V/V, -4V/V). The CEBC suffix denotes a specific package and thermal grade variant within this product line.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.