Active 2nd-order intermodulation calibration for direct-conversion receivers

Minghui Chen*, Yue Wu, Mau-Chung Chang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

19 Scopus citations


A temperature-compensated active IM2 calibration circuit for direct-conversion receivers is fabricated with a mixer in 0.25μm CMOS. A squaring circuit senses the RF signal and generates a calibration current to cancel mixer IM2 distortion. The loading effect and noise contribution are minimized by gain boosting. IIP2 is boosted >20dB to >80dBm in the IMT band. The calibration circuit draws 1.5mA.

Original languageEnglish
Title of host publication2006 IEEE International Solid-State Circuits Conference, ISSCC - Digest of Technical Papers
StatePublished - 1 Dec 2006
Event2006 IEEE International Solid-State Circuits Conference, ISSCC - San Francisco, CA, United States
Duration: 6 Feb 20069 Feb 2006

Publication series

NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
ISSN (Print)0193-6530


Conference2006 IEEE International Solid-State Circuits Conference, ISSCC
CountryUnited States
CitySan Francisco, CA

Fingerprint Dive into the research topics of 'Active 2<sup>nd</sup>-order intermodulation calibration for direct-conversion receivers'. Together they form a unique fingerprint.

Cite this