DocumentCode
2909325
Title
5th-Order Chebyshev Acitive-RC Complex Filter Employing Current Amplifiers
Author
Khumsat, Phanumas ; Worapishet, Apisak
Author_Institution
Prince of Songkhla Univ., Songkhla
fYear
2007
fDate
26-28 Sept. 2007
Firstpage
281
Lastpage
284
Abstract
Current amplifiers have been employed as an active building block for low-power active-RC 5th-order Chebyshev complex filter. High gain of the current amplifier relies on internal high impedance nodes. The amplifier´s output stage operates in a class-AB manner for maximum signal swing. Bias circuit suitable for the proposed amplifier is also introduced where it helps minimise power consumption and silicon area. Simulation results with 2-V 0.18 mum CMOS process indicate correct functionalities of the complex filter operating in Bluetooth and ZigBee modes. The whole filter consumes power less than 500uW from 1-V supply.
Keywords
Chebyshev filters; RC circuits; amplifiers; low-power electronics; 5th-order Chebyshev active-RC complex filter; bias circuit; current amplifiers; low-power active-RC 5th-order Chebyshev complex filter; maximum signal swing; Bluetooth; CMOS process; Chebyshev approximation; Circuit simulation; Energy consumption; Filters; Impedance; Power amplifiers; Silicon; ZigBee;
fLanguage
English
Publisher
ieee
Conference_Titel
Integrated Circuits, 2007. ISIC '07. International Symposium on
Conference_Location
Singapore
Print_ISBN
978-1-4244-0797-2
Electronic_ISBN
978-1-4244-0797-2
Type
conf
DOI
10.1109/ISICIR.2007.4441853
Filename
4441853
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