NDLI: A 30MHz 28dBm-IIP3 3.2mW fully-differential Sallen-Key $4^{th}-order$ filter with out-of-band zeros cancellation

Content Provider	IEEE Xplore Digital Library
Author	Resta, F. De Matteis, M. Pezzotta, A. D'Amico, S. Baschirotto, A.
Copyright Year	2015
Description	Author affiliation: Phys. Dept., Univ. of Milano-Bicocca, Milan, Italy (Resta, F.; De Matteis, M.; Pezzotta, A.; Baschirotto, A.) \|\| Innovation Eng. Dept., Univ. of Salento, Salento, Italy (D'Amico, S.)
Abstract	In this paper a $4^{th}-order$ 30MHz Butterworth low-pass analog filter is presented, exploiting the Sallen-Key (SK) biquadratic cell circuit. The out-of-band zeros typically present in SK cells, are cancelled by using a low-power auxiliary path, resulting in a significant improvement of the stopband rejection, at the cost of a small power budget for the same auxiliary path biasing. An efficient unity gain buffer has been used, based on super-source-follower stage, providing very large in-band IIP3 over the entire filter bandwidth (21.5dBm for 25MHz&26MHz input tones), at 3.2mW power consumption from a single 1.8V supply voltage. The filter prototype has been designed in CMOS 0.18μm tech. The total area occupancy is $0.12mm^{2},$ the in-band integrated noise is 197μVRMS.
Starting Page	1
Ending Page	4
File Size	837269
Page Count	4
File Format	PDF
ISBN	9781479988938
DOI	10.1109/NEWCAS.2015.7182066
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-07
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Out-of-Band zeros Sallen-Key Filter Super-Source-Follower
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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