MAX9721 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 ponent height. Fixed gains of -2V/V (MAX9721A), -1.5V/V (MAX9721B), and -1V/V (MAX9721C)...
MAX9721 Key Features
- Single Cell, 0.9V to 1.8V Single-Supply Operation
- Ground-Referenced Outputs Eliminate DC Bias
- No Degradation of Low-Frequency Response Due to Output Capacitors
- 20mW per Channel into 32Ω Low 0.006% THD+N High PSRR (80dB at 1kHz) Integrated Click-and-Pop Suppression
- Low Quiescent Current (2.2mA)
- Low-Power Shutdown Control
- Short-Circuit Protection
- ±8kV ESD-Protected Amplifier Outputs
- Available in Space-Saving Packages 12-Bump UCSP (1.54mm x 2.02mm x 0.6mm) 12-Pin Thin QFN (4mm x 4mm x 0.8mm)