MAX9814 sound sensor with integrated amplifier

The MAX9814 microphone comes with a chip designed to amplify audio volume in non-predictable situations. This luxury microphone that is above the rest, uses an automatic gain control, means that the “strong” sounds that are close to the microphone reduce them so that they do not overwhelm the audio and for distant sounds will amplify them. This amplifier is ideal for when you want to record or detect audio in an environment where levels change and you do not want to have to adjust the gain of the amplifier all the time.

This small ear called MAX9414 which is the powerful chip that this amplifier has, you can add a Stereo Headphone Jack 3.5mm to be able to listen to everything that the microphone perceives,

Main features:

• Supply voltage: current 2.7V-5.5V @ 3MA
• Output: 2Vpp bias 1.25V
• Frequency response: 20 Hz - 20 kHz
• Programmable attack and launch ratio
• Automatic gain, maximum selectable 40dB, 50dB or 60dB
• Low input-referred noise density of 30NV/
• Low THD: 0.04% (typical)