Please advice can i use ADMP504 for hearing aid application.
The ADMP801 microphone is ideal for hearing aid designs. It has a low current consumption of only 17 µA and runs from the typical hearing aid supply voltages from 0.9 to 1.4 V. The ADMP504 has similar noise performance, but runs off of a higher voltage and draws a higher current. If the ADMP504's specs are acceptable for your design, then it can certainly be used in a hearing aid application.
I moved this question about the ADMP504 to the Audio Community. Someone here should be able to assist you.
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