A wideband InP DHBT true logarithmic amplifier

Yu Ju Chuang, Kurt Cimino, Mark Stuenkel, Milton Feng, Minh Le, Raymond Milano

Research output: Contribution to journalArticlepeer-review

Abstract

A wideband logarithmic amplifier is demonstrated in this paper using InP-InGaAs double heterojunction bipolar transistor technology. The amplifier uses cascaded gain stages including the limiting and unity amplifiers to achieve a piecewise approximation to the ideal logarithmic response. The performance of 43-dB dynamic range, 22-GHz bandwidth, and < ±2-dB log error is achieved. The integrated circuit consumes 650 mW and has a chip dimension of 1 × 0.8 mm2.

Original languageEnglish (US)
Article number1717751
Pages (from-to)3843-3847
Number of pages5
JournalIEEE Transactions on Microwave Theory and Techniques
Volume54
Issue number11
DOIs
StatePublished - Nov 2006

Keywords

  • Heterojunction bipolar transistors (HBTs)
  • High-speed integrated circuits
  • Logarithmic amplifiers

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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