NDLI: A compensation technique for compact low-voltage low-power active-RC filters

Content Provider	IEEE Xplore Digital Library
Author	Upathamkuekool, C. Jiraseree-amornkun, A. Mahattanakul, J.
Copyright Year	2010
Description	Author affiliation: Department of Electronic Engineering, Mahanakorn University of Technology, Bangkok 10530 Thailand (Upathamkuekool, C.; Jiraseree-amornkun, A.; Mahattanakul, J.)
Abstract	This paper presents the compensation method for the active-RC integrators employing unbuffered low-gain opamp suitable for low-voltage low-power designs. The compensated integrators are then connected together in the cross-cascade fashion to synthesize the compact ladder-based fifth-order Chebyshev filters with 100-kHz and up to 10-MHz bandwidth, operating under 0.5-V single supply. Simulation results of the 100-kHz filter show a nearly identical with the prototype one. Its output signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) are about 53.6 dB and 48.7 dBc, respectively, and consuming only 60.7 µW. The 10-MHz filter with tunable capability via weak inversion MOS varactors gives good potential at high frequency range. This technique shows a promise for ultra low-voltage low-power designs such as in bio-applications.
Starting Page	3633
Ending Page	3636
File Size	492998
Page Count	4
File Format	PDF
ISBN	9781424453085
DOI	10.1109/ISCAS.2010.5537782
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-30
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	RLC circuits Delta modulation Transconductance Chebyshev approximation Voltage Low pass filters Frequency MOSFET circuits Operational amplifiers Transfer functions
Content Type	Text
Resource Type	Article

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