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Integrated low voltage and low power CMOS circuits for optical sensing of diffraction based micromachined microphone

  • Muhammad Shakeel Qureshi
  • , Arindam Basu
  • , Baris Bicen
  • , Levent Degertekin
  • , Paul Hasler

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

We present CMOS electronics for optical sensing of diffraction based micromachined microphone. Peak detector and track and hold circuits are used for continuous time approach with only 58 μA of current for 65dB peak SNR (1Pa at 1kHz). We also present a 1-bit sigma delta interface ADC for directly digitizing the signal for digital processing with 63 μA of current for 62dB peak SNR (1Pa @ 1kHz). The electronics are designed in 0.35um standard digital CMOS process with reduced supply of 1.5Volts. All the analog front end circuits operate in weak inversion with rail-to-rail wide input linear range. ©2010 IEEE.
Original languageEnglish
Title of host publicationISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems
Pages2031-2034
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2010 IEEE International Symposium on Circuits and Systems (ISCAS 2010): Nano-Bio Circuit Fabrics and Systems - Paris, France
Duration: 30 May 20102 Jun 2010

Publication series

NameISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems

Conference

Conference2010 IEEE International Symposium on Circuits and Systems (ISCAS 2010)
PlaceFrance
CityParis
Period30/05/102/06/10

Bibliographical note

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