Design of low transconductance (gm) ota for active Filters in bio-medical devices

Shetty, Prashanth Kumar and Reddy, Mahesh A V (2015) Design of low transconductance (gm) ota for active Filters in bio-medical devices. International Journal of Industrial Electronics and Electrical Engineering, 3 (2). pp. 51-55. ISSN 2347-6982

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Abstract

In recent years, there has been considerable research efforts in the development of integrated Operational Transconductance Amplifiers (OTAs) with small transconductances and improved linear range devoted for implementing active filters, with low cut-off frequencies in bio-medical devices. A family of CMOS OTAs have been designed for very small Gm, with the MOSFETs operating at weak inversion region. An OTA structure with a Bulk-driven Current division Source Degeneration technique to achieve a small Gm has been discussed in this paper. A detailed comparison is made among different schemes of mplementation of OTA, in terms of its transconductance, device parameters and bias currents.

Item Type: Article
Uncontrolled Keywords: OTA, Low Gm, Bulk-Driven, source degeneration, weak inversion, CDSD
Subjects: Information Sciences > MCIS Manipal
Depositing User: MIT Library
Date Deposited: 14 Jun 2016 14:02
Last Modified: 14 Jun 2016 14:02
URI: http://eprints.manipal.edu/id/eprint/146351

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