MAX9722AEUE+TG075

Audio Amplifiers Overview

The MAX9722AEUE+TG075 is a stereo headphone amplifier from Analog Devices/Maxim Integrated, utilizing DirectDrive architecture to eliminate bulky DC-blocking capacitors. It operates on a single 2.4V to 5.5V supply and delivers up to 130mW per channel into a 32Ω load or 70mW into a 16Ω load. The device features low 0.009% THD+N, high PSRR of 80dB at 217Hz, and integrated click-and-pop suppression. It includes ±8kV ESD protection, short-circuit and thermal-overload protection, and a low-power shutdown mode reducing current to 0.1µA. Available in 16-pin TSSOP packages.

Audio Amplifiers Feature Summary

• DirectDrive architecture eliminates the need for large output coupling capacitors by generating an internal negative supply via a charge pump.
• Integrated comprehensive click-and-pop suppression circuitry prevents audible transients during power-up and shutdown.
• High power-supply rejection ratio (PSRR) allows operation directly from noisy digital supplies without additional linear regulators.
• Includes differential inputs for enhanced noise cancellation and ±8kV ESD protection on headphone outputs.

Audio Amplifiers Applications

• Notebook and Desktop PCs
• MP3 Players
• Flat-Panel Monitors
• Cellular Phones
• Portable Audio Equipment

Audio Amplifiers Procurement Notes

Verify the specific suffix TG075 against official manufacturer documentation, as standard datasheets list MAX9722AEUE+. Confirm package type and pinout compatibility with your PCB footprint. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the ordering information section of the datasheet to validate availability and exact part designation before finalizing procurement.

Audio Amplifiers Selection Notes

Select this amplifier for portable designs where board space is limited due to its capacitor-free DirectDrive design. Choose the MAX9722A variant if external gain adjustment is required, or the MAX9722B for fixed -2V/V gain. Consider the TSSOP package for ease of assembly if QFN is not preferred. Ensure the application operates within the 2.4V to 5.5V supply range and requires low quiescent current.

Audio Amplifiers Part Context

This component belongs to the MAX9722 family of stereo headphone amplifiers designed for portable electronics. It shares architectural similarities with other Maxim DirectDrive amplifiers but is distinct in its specific power output capabilities and package options. The family addresses the industry trend toward miniaturization by removing passive components typically required for single-supply audio driving.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative devices based on pinout, supply voltage range, and output power specifications using official cross-reference tools.