The MAX9713/MAX9714 are filterless Class D audio power amplifiers from MAXIM that provide Class AB amplifier performance with Class D efficiency, conserving board space and eliminating the need for a bulky heatsink.
The MAX9713 (mono) and MAX9714 (stereo) are filter‑less Class D audio power amplifiers that deliver up to 6 W output with over 85 % efficiency. They feature a fully differential architecture, spread‑spectrum modulation, and integrated click‑and‑pop suppression.
The devices operate from a 10 V to 25 V single‑supply, include short‑circuit and thermal‑overload protection, and are available in compact 32‑pin TQFN packages (5 mm × 5 mm for MAX9713, 7 mm × 7 mm for MAX9714).
| Output Power | 6 W |
|---|---|
| Efficiency | >85 % |
| Quiescent Current | 18 mA |
| Shutdown Current | 0.2 µA |
| Power‑Supply Rejection Ratio (PSRR) | 76 dB |
| Total Harmonic Distortion + Noise (THD+N) | 0.07 % |
| Signal‑to‑Noise Ratio (SNR) | >95 dB |
| Operating Temperature Range | -40 °C – +85 °C |
| Package (MAX9713) | 32‑pin TQFN 5 mm × 5 mm × 0.8 mm |
| Package (MAX9714) | 32‑pin TQFN 7 mm × 7 mm × 0.8 mm |
Both amplifiers have short‑circuit and thermal‑overload protection.
The shutdown mode draws only 0.2 µA.
Typical quiescent current is 18 mA.