MAX9721BEBC

Audio Amplifiers Overview

The MAX9721BEBC is a fixed-gain, stereo headphone amplifier from the DirectDrive series by Analog Devices Inc./Maxim Integrated. It utilizes a patented architecture to produce ground-referenced outputs from a single supply, eliminating DC-blocking capacitors. The device operates from a single 0.9V to 1.8V supply and delivers up to 20mW per channel into a 32Ω load with 0.006% THD+N. It features an 80dB PSRR at 1kHz, ±8kV ESD protection on outputs, and comprehensive click-and-pop suppression. Supply current is 2.2mA, dropping to 1.0µA in shutdown mode. It is available in UCSP and TQFN packages.

Audio Amplifiers Feature Summary

• DirectDrive architecture generates ground-referenced outputs from a single supply without external DC-blocking capacitors
• Fixed gain options eliminate the need for external feedback networks
• Comprehensive click-and-pop circuitry suppresses audible transients during startup and shutdown
• Low-power shutdown mode significantly reduces supply current consumption

Audio Amplifiers Applications

• Portable equipment requiring minimal board space
• Single-cell battery powered audio devices
• Headphone amplification in mobile electronics

Audio Amplifiers Procurement Notes

Verify the specific suffix BEBC against official Analog Devices documentation to confirm package type and temperature range. Confirm availability status through ADI channels as Maxim Integrated operations are fully integrated under Analog Devices. Ensure design compliance with RoHS standards specified in the datasheet.

Audio Amplifiers Selection Notes

Select this component for applications prioritizing small footprint and low voltage operation. The fixed-gain variants (A, B, C) reduce external component count compared to adjustable designs. Verify that the required gain matches the specific sub-model (MAX9721A/B/C). Ensure the power supply voltage remains within the 0.9V to 1.8V operational range.

Audio Amplifiers Part Context

The MAX9721 belongs to the DirectDrive family of stereo headphone amplifiers designed for portable consumer electronics. This series emphasizes high audio quality in ultra-small packages. The BEBC suffix typically denotes a specific thermal grade and UCSP package configuration within the broader MAX9721 product line.

Audio Amplifiers Replacement Considerations

Consult Analog Devices documentation for direct pin-compatible or functionally equivalent alternatives within the MAX9721 series or newer DirectDrive generations. Verify electrical parameters and package dimensions before substitution.