Wide Vin Low Power Audio Amplifier with Internal Gain - LM386

LM386 (ACTIVE)

Wide Vin Low Power Audio Amplifier with Internal Gain

 

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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 Analog Input Amplifiers

 
Closed/Open Loop
Max Speaker Outputs (#)
Input Type
Control Type
Analog Supply Min [V]
Analog Supply Max [V]
Power Stage Supply Max (V)
Rating
Operating Temperature Range (C)
Package Group
Package Size (mm2=WxL)
Approx. Price (US$)
LM386
Open    
1    
Analog    
Hardware    
20    
94    
94    
Catalog    
0 to 70    
SOIC
VSSOP    
8VSSOP: 15 mm2: 4.9 x 3
8SOIC: 29 mm2: 6 x 4.9    
0.31 | 1ku    

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