Microphone preAmplifier

[anirudha.athavale]

i am looking for a microphone preamplifier IC. I have tried on Max4465 and MAx4463.

But i found that MAX4465 needs buffer circuitry.
please suggest me another IC i need to amplifiy MIC sound

 

[Santosh13]

An simple OP-AMP will solve your probs.

Google for circuits
NOTE: GAIN is also variable

 

[sreepss]

this may help you

 

[anirudha.athavale]

thank you guys but santosh i have tried on simple OP07 with inverting amplifier with unity gain amplifier but it is not providing any result i want to reduce the space also that is why i am looking for a IC

 

[Pjdd]

A unity gain amplifier provides no amplification because the gain is unity, that is, the output voltage is the same as the input. The OP07 and other opamps can be configured to provide more than unity gain.

There's a wide range of opamps to choose from for use as a microphone amplifier. The choice of a particular opamp depends on factors like cost, available power supply, quality requirement, complexity, type of microphone. Provide more details about these factors and we can suggest suitable opamps and circuits.

 

[anirudha.athavale]

Yes.....Can anyone suggest me MicPreamplifier circuitry

 

[Santosh13]

Hi anirudha check out this link.
It might help you out

**broken link removed**

 

[ard]

How about using the simple LM386? Wouldnt get much simpler than that.

Or if you need even more sensitivity, check out this 386 circuit with a transistor pre-amp;

Integrated circuits (scroll down to fig 7.7)

Regards,

Anand Dhuru