What is LM386?
This is Low Voltage Audio Power Amplifier. A amplifier is an electronic circuit that amplifies or increases the voltage of an electrical signal. The input signal is usually a low-level voltage, and the output signal is a higher-level voltage with the same waveform as the input signal. |
[PDF] Complete Technical Details can be found in the LM386 datasheet provided at this page.Datasheet Summary in PDF FileLM386 Low Voltage Audio Power Amplifier January 2000 LM386 Low Voltage Audio Power Amplifier General 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 up to 200 The inputs are ground referenced while the output is automatically biased 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 n n n n n n n n n Battery operation Minimum external parts Wide supply voltage range 4V 12V or 5V 18V Low quiescent current drain 4 mA Voltage gains from 20 to 200 Ground referenced input Self centering output quiescent voltage Low distortion Available in 8 pin MSOP package Applications n n n n n n n n AM FM radio amplifiers Portable tape player amplifiers Intercoms TV sound systems Line drivers Ultrasonic drivers Small servo drivers Power converters Equivalent Schematic and Connection Diagrams Small Outline Molded Mini Small Outline and Dual In Line Packages DS006976 2 DS006976 1 Top View Order Number LM386M 1 LM386MM 1 |
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[ Detailed Data ] |
Q: What is a voltage amplifier, and how does it work? A: A voltage amplifier is an electronic circuit that increases the amplitude of an input voltage signal. It does this by using active or passive components to amplify the input signal, making it stronger and increasing its voltage level. The output voltage of the amplifier is proportional to the input voltage, and the amplification factor is determined by the circuit design. Q: What are the types of voltage amplifiers? A: There are many types of voltage amplifiers, including operational amplifiers (op-amps), transistor amplifiers, vacuum tube amplifiers, and integrated circuit (IC) amplifiers. Each type of amplifier has its unique design and application. Q: What is the gain of a voltage amplifier? A: The gain of a voltage amplifier is the ratio of the output voltage to the input voltage. It is typically expressed in decibels (dB) or as a numeric ratio. Q: What is the frequency response of a voltage amplifier? A: The frequency response of a voltage amplifier is the range of frequencies that the amplifier can amplify without significant distortion or attenuation. It is determined by the circuit design and the characteristics of the active and passive components used. Manufacturers : National Semiconductor  |
NATIONAL LM386 AMPLIFIER Low Voltage Audio Power Amplifier More Search |
Datasheet LM386.PDF DownLoad ( NATIONAL ) |
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Although each manufacturer has the same part name, the detailed parameters of its function may differ slightly. Therefore, it is important to check accurate data from various manufacturers. |
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