CMOS transconductance multipliers: A tutorial

Gunhee Han, Edgar Sánchez-Sinencio

Research output: Contribution to journalArticlepeer-review

80 Citations (Scopus)


Real-time analog multiplication of two signals is one of the most important operations in analog signal processing. The multiplier is used not only as a computational building block but also as a programming element in systems such as filters, neural networks, and as mixers and modulators in a communication system. Although high performance bipolar junction transistor multipliers have been available for some time, the CMOS multiplier implementation is still a challenging subject especially for low-voltage and low-power circuit design. Despite the large number of papers proposing new MOS multiplier structures, they can be roughly grouped into a few categories. This tutorial provides a complete survey of CMOS multipliers, presents a unified generation of multiplier architectures, and proposes the most recommended MOS multiplier structure. This tutorial could serve as a starting reference point (and metric) for comparison of new CMOS multiplier circuit configurations. An illustrative CMOS chip prototype verifying theoretical results is presented. Index Terms-CMOS multipliers, low noise design, low voltage circuits, multipliers.

Original languageEnglish
Pages (from-to)1550-1563
Number of pages14
JournalIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing
Issue number12
Publication statusPublished - 1998

Bibliographical note

Funding Information:
Manuscript received April 11, 1997; revised August 14, 1998. This work was supported in part by the Mixed-Signal Group, Texas Instruments. This paper was recommended by Associate Editor F. Larsen. G. Han is with the Department of Electronic Engineering, Yonsei University, Seoul, Korea. E. Sánchez-Sincencio is with the Department of Electrical Engineering, Texas A&M University, College Station, TX 77843-3128 USA (e-mail: Publisher Item Identifier S 1057-7130(98)09978-9.

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering


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