Update: 30 September, 2023
The MAX4411 is a fixed-gain, stereo headphone amplifier from MAXIM that is designed for portable equipment where board space is at a premium. The MAX4411 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. Additionally, the gain of the amplifier is set internally (-1.5V/V, MAX4411 and -2V/V, MAX4411B), further reducing component count. The MAX4411 delivers up to 80mW per channel into a 16Ω load and has low 0.003% THD+N. An 86dB at 217Hz power-supply rejection ratio (PSRR) allows this device to operate from noisy digital supplies without an additional linear regulator. The MAX4411 includes ±8kV ESD protection on the headphone outputs. Com- prehensive click-and-pop circuitry suppresses audible clicks and pops on startup and shutdown. Independent left/right, low-power shutdown controls make it possible to optimize power savings in mixed-mode, mono/stereo applications. The MAX4411 operates from a single 1.8V to 3.6V supply, consumes only 5mA of supply current, has short-circuit and thermal-overload protection, and is specified over the extended -40°C to +85°C temperature range. The MAX4411 is available in a tiny (2mm ✕ 2mm ✕ 0.6mm), 16-bump chip-scale package (UCSP™) and a 20-pin thin QFN package (4mm ✕ 4mm ✕ 0.8mm).
File format: PDF
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MD5 Checksum: F6F6B0DE4F0A2E39BD4C78C5B8A692DA
Publication date: 10 April, 2012
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PDF Link: MAXIM MAX4411 handbook PDF