NDLI: Low power wideband voltage and current mode second-order filters using wideband CMOS transimpedance network

Content Provider	IEEE Xplore Digital Library
Author	Raut, R. Guo, N.
Copyright Year	1997
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada (Raut, R.)
Abstract	A very wideband CMOS transconductor is used to build a wideband transimpedance amplifier, which realizes second order low pass filters having -3 dB bandwidth to 75.6 MHz and band-pass filter with center frequency of 159 MHz using 1 pF with /spl plusmn/1.25 V power supplies. The power dissipations are respectively 0.67 mW and 0.45 mW per pole. Using Miller effect capacitance of MOS transistors, the low pass filter can be tuned from 124 MHz to 233 MHz with slightly increased power dissipation (0.78 mW per pole). An alternate architecture produces a low-pass bandwidth to 171.3 MHz with 1 pF capacitors and a power dissipation of only 0.67 mW per pole. With /spl plusmn/2.5 V supply, the -3 dB frequency and the center frequency can be extended to 286 MHz and 398 MHz respectively with power dissipations of 12.25 mW/pole and 8.17 mW/pole respectively. Both voltage- and current-mode structures are studied.
Starting Page	241
Ending Page	244
File Size	328618
Page Count	4
File Format	PDF
ISBN	0780336941
DOI	10.1109/MWSCAS.1997.666078
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-08-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wideband Low voltage Power dissipation Low pass filters Frequency Band pass filters Bandwidth Transconductors Broadband amplifiers Power supplies
Content Type	Text
Resource Type	Article

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