LM386: Voltage follower circuit.

Kengo.Y

Part Number: LM386

Hi team,

Can I use Gain=1 for LM386?
I think it can be achieved with voltage followers.
Is it correct?

Sincerely.
Kengo.

over 3 years ago

0 Luis Fernando Rodriguez S. over 3 years ago

TI__Guru* 84915 points

Hi, Kengo,

Due to the internal 1.35Kohm resistor, the gain is already set to 20dB as minimum. So, even if it is configured in a voltage follower configuration, the gain will remain at 20dB. For more details about the internal gain configuration, please consult section 9.2.1.2.1 ( https://www.ti.com/lit/ds/symlink/lm386.pdf#page=8 ).

Best regards,
Luis Fernando Rodríguez S.

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LM386: Voltage follower circuit.