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LM1875 - 20W Audio Power Amplifier

This page provides the datasheet information for the LM1875, a member of the LM1 20W Audio Power Amplifier family.

Datasheet Summary

Description

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 4Ω or 8Ω load on ± 25V supplies.

Using an 8Ω load and ± 30V supplies, over 30 watts of power may be delivered.

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. Features n n n n n n n n n n n 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 ra.

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Datasheet preview – LM1875

Datasheet Details

Part number LM1875
Manufacturer National Semiconductor
File Size 509.79 KB
Description 20W Audio Power Amplifier
Datasheet download datasheet LM1875 Datasheet
Additional preview pages of the LM1875 datasheet.

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Full PDF Text Transcription

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LM1875 20W Audio Power Amplifier February 1999 LM1875 20W Audio Power Amplifier General Description 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 4Ω or 8Ω load on ± 25V supplies. Using an 8Ω 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.
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