The MAX4410 stereo headphone driver is designed for portable equipment where board space is at a premium. The MAX4410 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. The MAX4410 delivers up to 80mW per channel into a 16Ω load and has low 0.003% THD + N. A high power-supply rejection ratio (90dB at 1kHz) allows this device to operate from noisy digital supplies without an additional linear regulator. The MAX4410 includes ±8kV ESD protection on the headphone outputs. Comprehensive 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 MAX4410 operates from a single 1.8V to 3.6V supply, consumes only 7mA of supply current, has short-circuit and thermal overload protection, and is specified over the extended -40°C to +85°C temperature range. The MAX4410 is available in a tiny (2mm x 2mm x 0.6mm), 16-bump chip-scale package (UCSP™) and a 14-pin TSSOP package.
The MAX4410 stereo headphone driver is designed for portable equipment where board space is limited. It uses a patented DirectDrive architecture to provide ground‑referenced outputs from a single 1.8 V‑3.6 V supply, eliminating bulky DC‑blocking capacitors.
Key features include up to 80 mW output per channel into a 16 Ω load, 0.003 % THD+N, 90 dB PSRR at 1 kHz, independent left/right shutdown control, ±8 kV ESD protection, and availability in ultra‑small UCSP and 14‑pin TSSOP packages.
| Quiescent Supply Current (one channel) | 7 mA |
|---|---|
| Maximum Output Power per Channel | 80 mW into 16 Ω |
| Total Harmonic Distortion + Noise (THD+N) | 0.003 % |
| Power‑Supply Rejection Ratio (PSRR) | 90 dB at 1 kHz |
| Operating Temperature Range | -40 °C to +85 °C |
| Package Types | UCSP (2 mm × 2 mm × 0.6 mm) and 14‑pin TSSOP |
| ESD Protection on Outputs | ±8 kV |
Each channel can deliver up to 80 mW into a 16 Ω load.
The device exhibits a total harmonic distortion plus noise of 0.003 %.
The headphone outputs are protected against ±8 kV ESD events.