Electret microphone and OPA344 amplifier module - SparkFun BOB-12758

Index: SPF-01614 EAN: 5904422300722

Module with microphone and operational amplifier. The output signal is amplified 100 times so the system can be connected directly to the analog inputs of microcontrollers.

Electret microphone and OPA344 amplifier module - SparkFun BOB-12758
€8.05 tax excl.
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Manufacturer: SparkFun


Module with electret microphone elektretowymand operational amplifier. Thanks to the applied system amp (OPA344), the voltage signal of the microphone is amplified 100-times. This allows for the direct connection of the module to the input pins of the analog-to-digital converter (e.g. analog inputsof the Arduino). The system is powered with the voltage ranging from 2.7 V to 5.5 V.



  • Supply voltage: from 2.7 V to 5.5 V
  • Current consumption: max 0.5 mA
  • Frequency range: 100 Hz to 10 000 Hz
  • The set does not containgoldpin strap, it can be purchased separately

  • Module dimensions : 17 x 11 x 8 mm

Connection method

Power should be connected between the pins of VCC (2.7 V to 5.5 V) and GND (ground). AUD is an output of amplified analog signal. It must be connected to the input pins of the analog-to-digital converter (e.g. analog inputsof the Arduino) usingwiresor using breadboard. Pins are the solder fields, for soldering the goldpin connectors(2.54 mm pitch).


Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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