19-3167; Rev 0; 1/04 1V, Fixed-Gain, DirectDrive, Stereo Headphone Amplifier with Shutdown General Description The MAX9721 fixed-gain, stereo headphone amplifier is ideal for portable equipment where board space is at a premium.
The MAX9721 uses a unique, patented DirectDrive architecture to produce a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, saving cost, board space, and component height.
Fixed gains of -2V/V (MAX9721A), -1.
5V/V (MAX9721B), and -1V/V (MAX9721C) further reduce external component count.
The MAX9721 delivers up to 20mW per channel into a 32Ω load and achieves 0.
006% THD+N.
An 80dB at 1kHz power-supply rejection ratio...

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