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Analog Devices MAX9724CETC+ — Analog & Data Acquisition

MAX9724CETC+ Class AB Headphone Amp, 63mW, DirectDrive

MPNMAX9724CETC+
End of Life

Maxim Integrated MAX9724CETC+, Class AB stereo headphone amplifier, DirectDrive® series, 63mW x 2 into 32Ω, 2.5-5.5V supply, -40 to 85°C, 12-TQFN (3x3) package, Tube.

$1.52Ref. price · indicative, final on quote
Analog Devices MAX9724CETC+ datasheet (PDF)
Packaging12-WFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesDirectDrive®
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX9724CETC+ specifications
ParameterValue
TypeClass AB
SeriesDirectDrive®
Output typeHeadphones, 2-Channel (Stereo)
MountingSurface Mount
Voltage2.5V ~ 5.5V
Max output power x channels @ load63mW x 2 @ 32Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageTube
FeaturesDepop, Short-Circuit and Thermal Protection, Shutdown
Case12-WFQFN Exposed Pad

Product details

The Maxim Integrated MAX9724CETC+ is a Class AB stereo headphone amplifier in the DirectDrive® series. It delivers 63 mW per channel into a 32 Ω load from a 2.5 V to 5.5 V supply, which means it runs directly off a single-cell Li-ion battery or a USB rail without needing a separate boost converter.

Key features that matter in the field

Built-in depop circuitry eliminates the audible pop when the amplifier turns on or off — no external muting relay or soft-start cap needed. Short-circuit and thermal protection mean the part survives a headphone jack short or a hot day in a car dashboard without latching off permanently. A dedicated shutdown pin lets the system cut power draw to near zero when audio is idle, which is useful for battery life in always-on devices. The output is a stereo 2-channel headphone drive, so one IC covers left and right channels.

Frequently asked questions

What is the output power of MAX9724CETC+ per channel?

It delivers 63 mW per channel into a 32 Ω load, which is typical for driving consumer headphones to comfortable listening levels.

Does MAX9724CETC+ require any external capacitors?

The DirectDrive architecture eliminates the need for large DC-blocking output capacitors, but the datasheet still specifies supply bypass caps — follow the typical application circuit for best pop-free performance.

Is MAX9724CETC+ a direct replacement for MAX9724?

The MAX9724CETC+ is a specific package and temperature variant of the MAX9724 family. Check the pinout and package compatibility — the C suffix indicates the 12-TQFN package and the T indicates tube. For a direct drop-in, compare the full order code against your existing BOM.