?The LM3886 is a high-performance audio power amplifier
capable of delivering 68W of continuous average power to a
4? load and 38W into 8? with 0.1% (THD + N) from
20 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 amplifiers
by providing an inherently, dynamically protected Safe Oper-
ating Area (SOA). SPiKe Protection means that these parts
are completely safeguarded at the output against overvolt-
age, undervoltage, overloads, including shorts to the sup-
plies, thermal runaway, and instantaneous temperature
peaks.
The LM3886 maintains an excellent Signal-to-Noise Ratio of
greater than 92 dB with a typical low noise floor of 2.0 μV. It
exhibits extremely low (THD + N) values of 0.03% at the
rated output into the rated load over the audio spectrum, and
provides excellent linearity with an IMD (SMPTE) typical rat-
ing of 0.004%.