Recommend me low-voltage dynamic microphone preamp circuit?

Hello Schertler,

In case you have a My analog account you can check this link, the document discusses an application that uses OP484 as an integrated mic preamp and amplifier driver.

https://wiki.analog.com/university/courses/engineering_discovery/lab_4/theory

As an alternative solution you can also look at the SSM2167, which is already an integrated microphone preamp. The devices power up from a single 3v supply with THDN at 0.2% at 1kHz.  kindly refer below for the datasheet of the device and I am also attaching the application note using Mems microphone integrated to SSM2166.    

http://www.analog.com/media/en/technical-documentation/data-sheets/SSM2167.pdf

http://www.analog.com/media/en/technical-documentation/application-notes/AN-1326.pdf

Can you please share more on your intended application of the preamp, and if possible more specifics on your target design, like what is operating voltage, current consumption,  expected noise density.

Regards,

Joven

Hello Schertler,

In case you have a My analog account you can check this link, the document discusses an application that uses OP484 as an integrated mic preamp and amplifier driver.

https://wiki.analog.com/university/courses/engineering_discovery/lab_4/theory

As an alternative solution you can also look at the SSM2167, which is already an integrated microphone preamp. The devices power up from a single 3v supply with THDN at 0.2% at 1kHz.  kindly refer below for the datasheet of the device and I am also attaching the application note using Mems microphone integrated to SSM2166.    

http://www.analog.com/media/en/technical-documentation/data-sheets/SSM2167.pdf

http://www.analog.com/media/en/technical-documentation/application-notes/AN-1326.pdf

Can you please share more on your intended application of the preamp, and if possible more specifics on your target design, like what is operating voltage, current consumption,  expected noise density.

Regards,

Joven