A 4th Order Gm-C Filter with 10MHz Bandwidth and 39dBm IIP3 in 65nm CMOS

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Gm-C filters suffer from limited dynamic range due to a trade-off between noise and linearity in OTA design. This paper therefore presents a filter with a linearization technique to break this trade-off. This technique is demonstrated by a low power 4th order 10MHz Butterworth Gm-C low pass filter. The filter was implemented in 65nm CMOS technology with a core area of 0.19mm2 and a total current consumption of 3.5mA from a 1.2V supply. The measured input referred noise is 31nV/√Hz, the maximum in-band IIP3 is 39dBm, the out-of-band IIP3 is 34dBm, and the compression point is 8.2dBm.

Details

Authors
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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Active filters, CMOS technology, intermodulation distortion, low pass filters, low power electronics, operational transconductance amplifier
Original languageEnglish
Title of host publication[Host publication title missing]
PublisherIEEE--Institute of Electrical and Electronics Engineers Inc.
Pages367-370
Number of pages4
Publication statusPublished - 2014
Publication categoryResearch
Peer-reviewedYes
EventEuropean Solid State Circuits Conference (ESSCIRC), 2014 - Venezia Lido, ITALY, Venice, Italy
Duration: 2014 Sep 222014 Sep 26
Conference number: 40

Publication series

Name
ISSN (Print)1930-8833

Conference

ConferenceEuropean Solid State Circuits Conference (ESSCIRC), 2014
CountryItaly
CityVenice
Period2014/09/222014/09/26