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The LM3886 is a high-performance audio power amplifiercapable of delivering 68W of conTInuous average power to a4Ω load and 38W into 8Ω with 0.1% (THD + N) from20 Hz–20 kHz.The performance of the LM3886, uTIlizing its Self Peak In-stantaneous Temperature (˚Ke) (SPiKe™) ProtecTIon Cir-cuitry, puts it in a class above discrete and hybrid amplifiersby providing an inherently, dynamically protected Safe Oper-aTIng Area (SOA). SPiKe Protection means that these partsare completely safeguarded at the output against overvolt-age, undervoltage, overloads, including shorts to the sup-plies, thermal runaway, and instantaneous temperaturepeaks.The LM3886 maintains an excellent Signal-to-Noise Ratio ofgreater than 92 dB with a typical low noise floor of 2.0 µV. Itexhibits extremely low (THD + N) values of 0.03% at therated output into the rated load over the audio spectrum, andprovides excellent linearity with an IMD (SMPTE) typical rat-ing of 0.004%.
