Analysis and Design of a Microphone Preamplifier for Mobile Applications

A design of an on-chip ac-coupling preamplifier for mobile applications is presented. A microphone preamplifier should have a large input impedance to mitigate the effective-gain reduction caused by the microphone’s non-zero output impedance. From a review of previously reported microphone preamplif...

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Bibliographic Details
Main Authors: Saemin Im, Sang-Gyu Park
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/10/14/1624