AES E-Library

An Improvement Microphone Preamplifier Integrated Circuit

The influence of the semiconductor process on the performance of a microphone preamplifier integrated circuit is described. Examples of active devices available in conventional junction isolated and newer complementary bipolar technologies are shown. The availability of such devices influences the electrical design and its complexity. The traditional microphone preamplifier topology is discussed. A new preamplifier gain structure, that extends the dynamic range by lowering the noise floor, is considered and its benefits are demonstrated.

Author: Floru, Fred
Affiliation: THAT Corporation, Milford, MA
AES Conference:UK 16th Conference: Silicon for Audio (April 2001)
Paper Number:uk103 Import into BibTeX
Subject:Silicon for Audio

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes18)   /uk2001/2001lo04/uk103.pdf

Start a discussion about this paper!