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A Novel BiST and Calibration Technique for CMOS Down-Converters
KTH, School of Information and Communication Technology (ICT), Integrated Devices and Circuits. (Integrated Devices and Circuits)
KTH, School of Information and Communication Technology (ICT), Integrated Devices and Circuits.ORCID iD: 0000-0003-3802-7834
KTH, School of Information and Communication Technology (ICT), Electronic, Computer and Software Systems, ECS.
KTH, School of Information and Communication Technology (ICT), Electronic, Computer and Software Systems, ECS.
2008 (English)In: Circuits and Systems for Communications, 2008. ICCSC 2008. 4th IEEE International Conference on, 2008, 828-832 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a new digital calibration methodology that allows CMOS Gilbert cell down-converters to meet their block specifications under large process, temperature and power supply variations. The calibration method consists of a novel built-in self test for direct conversion receivers that is able to measure the gain, and the second and third order intermodulation products of the mixer. A random optimizer algorithm based on a least square error function provides digital control of the biasing circuit and the loads of the mixer. The gain and IIP3 are calibrated by regulating the current of the input differential pair and by switching the loads. IIP2 calibration is achieved by using a novel technique that consists of offset voltages cancellation in the switching pairs. The technique is validated by calibrating a 0.18um CMOS mixer in several corner conditions.

Place, publisher, year, edition, pages
2008. 828-832 p.
Keyword [en]
Built-in self-test; Digital calibration; Mixer; RF
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-59505DOI: 10.1109/ICCSC.2008.181Scopus ID: 2-s2.0-50649100152ISBN: 978-1-4244-1707-0 (print)OAI: oai:DiVA.org:kth-59505DiVA: diva2:475601
Conference
2008 4th IEEE International Conference on Circuits and Systems for Communications, ICCSC, Shanghai, 26-28 May, 2008
Note
QC 20120111Available from: 2012-01-11 Created: 2012-01-11 Last updated: 2012-02-13Bibliographically approved

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Rusu, Ana

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