Friday, November 15, 2013

Microphone Amplifier

This amplifies sound from a microphone.
  • The output is up to 1 volt and a gain of -100
  • The output can be adjusted from 0 - 100%
Supply Voltage (+V): 5 to 20 volts.

  • This circuit uses an operational-amplifier IC
  • It is an "inverting" amplifier which means a positive input will give a negative output, and vice-verca. This will not matter in most cases.

PCB size: 51mm x 25mm


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