We are interested in MEMS microphone and looking for low noise amplifier as preamplifier used in it.
I search Analog DevicesвЂ™ low noise amp. , however, which one is proper specification for our applications.
I have some questions about it.
In general, how much the amp gain is used for MEMS microphone?We want input voltage of amp is -70~-60 dBV (0.3mV ~ 1mV) and output voltage is -40~-30 dBV (10mV~31mV). which one is meet our wanted specifications.If amp that meet the Question 2 is exist, please give me quotation.Minimum input voltage (output of mic) for operating the amp
If you donвЂ™t mind, please answer our questions.