REALIZATION OF SQUARE ROOT DOMAIN TOW-THOMAS BIQUADRATIC FILTER

ÖLMEZ S., Cam U.

JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS, vol.19, no.5, pp.1015-1024, 2010 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 5
  • Publication Date: 2010
  • Doi Number: 10.1142/s0218126610006578
  • Journal Name: JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1015-1024
  • Keywords: Square root domain filters, Tow-Thomas biquadratic filter, state space synthesis
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this paper, a Tow-Thomas biquadratic filter designed in square root domain is proposed. The presented filter is constructed with a lossy integrator, a lossless integrator, and a summer block. To the best knowledge of the authors, the filter is the first square root domain Tow-Thomas filter in the literature. The state space synthesis method is used to design the biquadratic filter. The filter operated at 2.5 V supply voltage is simulated by using SPICE simulation program with 0: 25 mu m TSMC CMOS model parameters. Simulation results are in good agreement with theoretical results that the cut-off frequency and quality factor of the filter are tunable electronically.