Overture Audio Power Amplifier Series Dual 20-Watt Audio Power Amplifier w/ Mute & Standby Modes


Product details


Speaker channels (Max) Stereo Power stage supply (Max) (V) 64 Power stage supply (Min) (V) 20 Load (Min) (ohms) 4 Output power (W) 20 THD + N @ 1 kHz (%) 0.08 Iq (Typ) (mA) 25 Control interface Hardware Closed/open loop Open Analog supply (Min) (V) 20 Analog supply (Max) (V) 64 PSRR (dB) 115 Operating temperature range (C) -20 to 85 open-in-new Find other Speaker amps

Package | Pins | Size

TO-220 (NDB) 15 195 mm² 20.02 x 9.765 open-in-new Find other Speaker amps


  • SPiKe Protection
  • Minimal Amount of External Components Necessary
  • Quiet Fade-In/Out Mute Mode
  • Standby-Mode
  • Isolated 15-Lead TO-220 Package (PFM)
  • Non-Isolated 15-lead TO-220 Package
  • Wide Supply Range 20V - 64V

Key Specifications

  • THD+N at 1kHz at 2 x 15W continuous averageoutput power into 4Ω or 8Ω: 0.1% (max)
  • THD+N at 1kHz at continuous average output power of 2 x 20W into 8Ω: 0.009% (typ)
  • Standby current: 4.2mA (typ)

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The LM1876 is a stereo audio amplifier capable of delivering typically 20W per channel of continuous average output power into a 4Ω or 8Ω load with less than 0.1% THD+N.

Each amplifier has an independent smooth transition fade-in/out mute and a power conserving standby mode which can be controlled by external logic.

The performance of the LM1876, utilizing its Self Peak Instantaneous Temperature (°Ke) (SPiKe) protection circuitry, places it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). SPiKe protection means that these parts are safeguarded at the output against overvoltage, undervoltage, overloads, including thermal runaway and instantaneous temperature peaks.

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Technical documentation

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Type Title Date
* Data sheet Overture Audio Pwr Amp Series Dual 20W Audio Pwr Amp w/Mute & Standby Modes datasheet (Rev. C) Apr. 03, 2013
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019

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