Produktdetails

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 20 Power stage supply (max) (V) 60 Power stage supply (min) (V) 16 THD + N at 1 kHz (%) 0.015 Load (min) (Ω) 4 Analog supply voltage (min) (V) 16 Analog supply voltage (max) (V) 60 Rating Catalog Operating temperature range (°C) 0 to 70
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Mono Control interface Hardware Output power (W) 20 Power stage supply (max) (V) 60 Power stage supply (min) (V) 16 THD + N at 1 kHz (%) 0.015 Load (min) (Ω) 4 Analog supply voltage (min) (V) 16 Analog supply voltage (max) (V) 60 Rating Catalog Operating temperature range (°C) 0 to 70
TO-220 (NEB) 5 46.4312 mm² (10.16 mm × 4.57 mm) TO-220 (NDH) 5 86.0552 mm² (10.16 mm × 8.47 mm)
  • Up to 30 watts output power
  • AVO typically 90 dB
  • Low distortion: 0.015%, 1 kHz, 20 W
  • Wide power bandwidth: 70 kHz
  • Protection for AC and DC short circuits to ground
  • Thermal protection with parole circuit
  • High current capability: 4A
  • Wide supply range 16V-60V
  • Internal output protection diodes
  • 94 dB ripple rejection
  • Plastic power package TO-220

  • Up to 30 watts output power
  • AVO typically 90 dB
  • Low distortion: 0.015%, 1 kHz, 20 W
  • Wide power bandwidth: 70 kHz
  • Protection for AC and DC short circuits to ground
  • Thermal protection with parole circuit
  • High current capability: 4A
  • Wide supply range 16V-60V
  • Internal output protection diodes
  • 94 dB ripple rejection
  • Plastic power package TO-220

The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.

The LM1875 delivers 20 watts into a 4 or 8 load on ±25V supplies. Using an 8 load and ±30V supplies, over 30 watts of power may be delivered. The amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limit and thermal shutdown.

The LM1875 design takes advantage of advanced circuit techniques and processing to achieve extremely low distortion levels even at high output power levels. Other outstanding features include high gain, fast slew rate and a wide power bandwidth, large output voltage swing, high current capability, and a very wide supply range. The amplifier is internally compensated and stable for gains of 10 or greater.


The LM1875 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.

The LM1875 delivers 20 watts into a 4 or 8 load on ±25V supplies. Using an 8 load and ±30V supplies, over 30 watts of power may be delivered. The amplifier is designed to operate with a minimum of external components. Device overload protection consists of both internal current limit and thermal shutdown.

The LM1875 design takes advantage of advanced circuit techniques and processing to achieve extremely low distortion levels even at high output power levels. Other outstanding features include high gain, fast slew rate and a wide power bandwidth, large output voltage swing, high current capability, and a very wide supply range. The amplifier is internally compensated and stable for gains of 10 or greater.


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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt LM1875 20W Audio Power Amplifier datasheet (Rev. A) 13.05.2004
Anwendungshinweis Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26.08.2019
Anwendungshinweis AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27.06.2019

Design und Entwicklung

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Simulationsmodell

LM1875 PSpice Model (Rev. A)

SNAM066A.ZIP (20 KB) - PSpice-Modell
Unterstützte Produkte und Hardware
Simulationsmodell

LM1875 TINA-TI Reference Design (Rev. A)

SNAM068A.TSC (92 KB) - TINA-TI-Referenzdesign
Unterstützte Produkte und Hardware
Simulationsmodell

LM1875 TINA-TI Spice Model (Rev. A)

SNAM067A.ZIP (6 KB) - TINA-TI Spice-Modell
Unterstützte Produkte und Hardware
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
TO-220 (NEB) 5 Ultra Librarian
TO-220 (NDH) 5 Ultra Librarian

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