MAX9725BETC

Audio Amplifiers Overview

The MAX9725BETC is a Class-AB stereo headphone amplifier from the DirectDrive series, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 900mV to 1.8V and delivers 25mW per channel into a 16-ohm load. The device features pop-and-click suppression, short-circuit protection, and a shutdown mode. It is housed in a 12-TQFN (4x4mm) package with an exposed pad and supports an operating temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• DirectDrive architecture eliminates output coupling capacitors for compact design
• Integrated pop-and-click suppression prevents audible transients during power-up and power-down
• Built-in short-circuit and thermal protection ensures robust operation under fault conditions

Audio Amplifiers Applications

• Portable audio players and MP3 devices
• Mobile phones and smartphones
• Personal digital assistants (PDAs)
• Digital cameras and camcorders

Audio Amplifiers Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to obsolescence notices. Confirm RoHS compliance status and check for specific manufacturing date codes if required for legacy system maintenance. Ensure the 12-TQFN footprint matches the target PCB layout before procurement.

Audio Amplifiers Selection Notes

Select this component for low-voltage applications requiring high efficiency without external filtering components. The DirectDrive topology simplifies board space requirements compared to traditional capacitor-coupled amplifiers. Verify that the supply voltage remains within the 900mV to 1.8V range to ensure proper functionality and avoid damage.

Audio Amplifiers Part Context

This amplifier belongs to Maxim's DirectDrive family, designed specifically for battery-powered portable electronics. It replaces older capacitor-coupled designs, reducing bill-of-materials costs and board area. The MAX9725 series offers a balance of audio performance and power efficiency suitable for consumer handheld devices.

Audio Amplifiers Replacement Considerations

Check for direct pin-compatible replacements within the MAX9725 family or newer generations from Analog Devices. Verify that any substitute maintains the same 12-TQFN package dimensions and electrical characteristics, particularly the supply voltage range and output power capabilities.