Abstract
A design for a microphone preamplifier for application in hearing aids is presented. The amplifier operates at a supply of 1-1.5 V, the current drain is 40 μA. The maximum sound level allowed is more than 120 dB SPL (Sound Pressure Level), with a typical noise level of 25 dB(A) SPL (A-weighted). The amplifier is optimized for a capacitive microphone with a capacitance of 1.2 pF. The amplifier is fully integrated in a 0.7 μm n-well CMOS technology. Design details concerning noise performance are analytically described
Original language | English |
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Title of host publication | Proceedings of the IEEE International Symposium on Circuits and Systems : Connecting the World |
Place of Publication | Piscataway |
Publisher | IEEE |
Publication date | 1996 |
Pages | 477-480 |
DOIs | |
Publication status | Published - 1996 |
Event | 1996 IEEE International Symposium on Circuits and Systems - Atlanta, GA, United States Duration: 12 May 1996 → 15 May 1996 http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=3834 |
Conference
Conference | 1996 IEEE International Symposium on Circuits and Systems |
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Country/Territory | United States |
City | Atlanta, GA |
Period | 12/05/1996 → 15/05/1996 |
Internet address |