A high IIP2 SAW-less superheterodyne receiver with multistage harmonic rejection

I Madadi, M Tohidian, Koen Cornelissens, Patrick Vandenameele, RB Staszewski

Research output: Contribution to journalArticleScientificpeer-review

26 Citations (Scopus)
85 Downloads (Pure)


In this paper, we propose and demonstrate the first fully integrated surface acoustic wave (SAW)-less superheterodyne receiver (RX) for 4G cellular applications. The RX operates in discrete-time domain and introduces various innovations to simultaneously improve noise and linearity performance while reducing power consumption: a highly linear wideband noise-canceling low-noise transconductance amplifier (LNTA), a blocker-resilient octal charge-sharing bandpass filter, and a cascaded harmonic rejection circuitry. The RX is implemented in 28-nm CMOS and it does not require any calibration. It features NF of 2.1-2.6 dB, an immeasurably high input second intercept point for closely-spaced or modulated interferers, and input third intercept point of 8-14 dBm, while drawing only 22-40 mW in various operating modes.
Original languageEnglish
Pages (from-to)332-347
Number of pages16
JournalIEEE Journal of Solid State Circuits
Issue number2
Publication statusPublished - 2016


  • superheterodyne
  • Bandpass filter (BPF)
  • charge-sharing
  • discrete-time
  • IIP2
  • process-scalable
  • receiver
  • surface acoustic wave (SAW)-less


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