Low Voltage Audio Power Amplifier - LM386

LM386 (ACTIVE)

Low Voltage Audio Power Amplifier

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Description

The LM386 is a power amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value from 20 to 200.

The inputs are ground referenced while the output automatically biases to one-half the supply voltage. The quiescent power drain is only 24 milliwatts when operating from a 6 volt supply, making the LM386 ideal for battery operation.


Features

  • Battery operation
  • Minimum external parts
  • Wide supply voltage range: 4V-12V or 5V-18V
  • Low quiescent current drain: 4mA
  • Voltage gains from 20 to 200
  • Ground referenced input
  • Self-centering output quiescent voltage
  • Low distortion: 0.2% (AV = 20, VS = 6V, RL = 8[Ohm], PO = 125mW, f = 1kHz)
  • Available in 8 pin MSOP package

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Parametrics Compare all products in Mid/High-Power Amplifier

 
Max. Power to Single-Ended Load
Min. Supported Single-Ended Load
Closed/Open Loop
Max Speaker Outputs (#)
Input Type
Control Type
Analog Supply Min [V]
Analog Supply Max [V]
Power Stage Supply Min (V)
Power Stage Supply Max (V)
Rating
Operating Temperature Range (C)
Approx. Price (US$)
Architecture
LM386
1.6    
4    
Open    
1    
Analog    
Hardware    
20    
94    
20    
94    
Catalog    
0 to 70    
0.29 | 1ku    
Class AB    

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