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Schematic Circuits

Op-Amp Microphone Preamp

Description:
A high quality microphone preamplifier using a single power supply, suitable for dynamic or electret microphones. The opamp used can be any low noise, high performance type, e.g. NE5534,TL071, OPA 371 etc.

 

 

TL071 Op-Amp Microphone Preamp

 

Notes:
Nothing too special here. The design is a standard non-inverting design, the input is applied to the non-inverting input of the op-amp which is pin 3 in most cases. The input impedance is 23.5k, the overall voltage gain is determined by R2 and R1according to the following formula:


Vo = ( R2 / R1) + 1


Keywords : Schematic, Audio, Stereo, Application, Electronic, NE5534, TL071, OPA 371, Op-Amp Microphone Preamplifier
Writer : delon  |
13 Jan 2007 Sat   
|  37.825 Views
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