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MAX9720 - 50mW / DirectDrive / Stereo Headphone Amplifier

General Description

The MAX9720 stereo headphone amplifier combines Maxim’s patented DirectDrive architecture and SmartSense™, an automatic mono/stereo detection feature.

Conventional headphone amplifiers require a bulky DC-blocking capacitor between the headphone and the amplifier.

Key Features

  • thermal overload protection, and is specified over the extended -40°C to +85°C temperature range. The MAX9720 is available in a tiny (2mm x 2mm x 0.6mm) 16-bump chip-scale package (UCSP™) and a 16-pin TSSOP package. Features o DirectDrive Eliminates Bulky DC-Blocking Capacitors o SmartSense Automatic Short Detection o Low 5mA Quiescent Current o Fixed Gain Eliminates External Feedback Network MAX9720A: -1V/V MAX9720B: -1.41V/V o 50mW per Channel Output Power o Ultra-Low 0.003% THD+N o High PSRR.

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Other Datasheets by Maxim Integrated (now Analog Devices)

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MAX972 Single/Dual-Supply Comparators
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-2859; Rev 0; 4/03 50mW, DirectDrive, Stereo Headphone Amplifier with SmartSense and Shutdown General Description The MAX9720 stereo headphone amplifier combines Maxim’s patented DirectDrive architecture and SmartSense™, an automatic mono/stereo detection feature. Conventional headphone amplifiers require a bulky DC-blocking capacitor between the headphone and the amplifier. DirectDrive produces a ground-referenced output from a single supply, eliminating the need for large DC-blocking capacitors, saving cost, board space, and component height. SmartSense automatically detects the presence of a short at either the left or right amplifier output.