Paper Title
Design Of Low Transconductance (GM) Ota For Active Filters In Bio-Medical Devices

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 implementation of OTA, in terms of its transconductance, device parameters and bias currents. Keywords- OTA, Low Gm, Bulk-Driven, source degeneration, weak inversion, CDSD.