Title
Design f current-mode Gm-C filters from the transformation of Opamp-RC filters
Author
ESTEBAN TLELO CUAUTLE
Access level
Open Access
Subjects
Analog signal processing - (ANALOG SIGNAL PROCESSING) Active filters - (ACTIVE FILTERS) Opamp - (OPAMP) OTA - (OTA) Current conveyor - (CURRENT CONVEYOR) Current-mode - (CURRENT-MODE) CMOS integrated circuits - (CMOS INTEGRATED CIRCUITS) CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) FÍSICA - (CTI) ELECTRÓNICA - (CTI)
Summary or description
It is presented a method to design Current-Mode (CM) filters from the transformation of the well-known Voltage-Mode (VM) opamp-RC filters. First, it is shown the simulation of a low-frequency opamp-RC filter with stable high Q, by applying the Y-Δ transformation. Second, it is described the transformation of the VM opamp-RC filter to a VM Gm-C filter and the symbolic transfer functions of the VM Gm-C filter are derived. Third, it is shown the transformation of the VM Gm-C filter to a CM Gm-C filter and the symbolic transfer functions of the CM filter are derived to show that both, the VM and the CM Gm-C filters perform the same behavior. Finally, some guidelines are introduced to design CM filters with CMOS OTAs and current conveyors.
Publisher
Asian Network for Scientific Information
Journal of Applied Sciences
Publish date
2007
Publication type
Article
Publication version
Accepted Version
Information Resource
Format
application/pdf
Language
English
Audience
Students
Researchers
General public
Citation suggestion
Garcia-Ortega, Johana-M., et al., (2007). Design of Current-Mode Gm-C Filters from the Transformation of Opamp-RC Filters, Journal of Applied Sciences, 7(9): 1321-1326
Source repository
Repositorio Institucional del INAOE
Downloads
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