A wideband linear tunable CDTA and its application in field programmable analogue array

Zhenhua Hu, Chunhua Wang, Jingru Sun, Yichuang Sun, Jie Jin

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
87 Downloads (Pure)

Abstract

In this paper, a NMOS-based wideband low power and linear tunable transconductance current differencing transconductance amplifier (CDTA) is presented. Based on the NMOS CDTA, a novel simple and easily reconfigurable configurable analogue block (CAB) is designed. Moreover, using the novel CAB, a simple and versatile butterfly-shaped FPAA structure is introduced. The FPAA consists of six identical CABs, and it could realize six order current-mode low pass filter, second order current-mode universal filter, current-mode quadrature oscillator, current-mode multi-phase oscillator and current-mode multiplier for analog signal processing. The Cadence IC Design Tools 5.1.41 post-layout simulation and measurement results are included to confirm the theory.

Original languageEnglish
Pages (from-to)465-483
Number of pages19
JournalAnalog Integrated Circuits and Signal Processing
Volume88
Issue number3
Early online date6 Jun 2016
DOIs
Publication statusPublished - 1 Sep 2016

Keywords

  • CMOS analogue circuits analog
  • Configurable analogue blocks
  • Current differencing transconductance amplifier
  • Current-mode circuits
  • Field programmable analogue arrays
  • Signal-processing

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