Analog Integrated Circuits and Signal Processing

, Volume 43, Issue 3, pp 297–315

Systematic Synthesis of Active-RC Circuit Building-Blocks

  • D. G. Haigh
  • F. Q. Tan
  • C. Papavassiliou
Article

DOI: 10.1007/s10470-005-1609-y

Cite this article as:
Haigh, D.G., Tan, F.Q. & Papavassiliou, C. Analog Integr Circ Sig Process (2005) 43: 297. doi:10.1007/s10470-005-1609-y

Abstract

In this paper, we show how some basic building blocks for active-RC circuit design, such as amplifiers, impedance converters and simulated inductance circuits, may be synthesised in a systematic way by expansion of their port admittance matrices. The circuit topology emerges from the synthesis procedure, allowing all possible implementations to be identified and explored. Nullors representing ideal op-amps and transistors are represented within the nodal admittance matrix of a synthesised circuit by linked infinity parameters. In nodal admittance matrices describing ideal circuits synthesised, the replacement of linked infinity parameters by finite parameters provides a seamless transition to non-ideal analysis and practical circuit design.

Keywords

active-RC circuitscircuit synthesisadmittance matrix expansion

Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • D. G. Haigh
    • 1
  • F. Q. Tan
    • 1
  • C. Papavassiliou
    • 1
  1. 1.Department of Electrical and Electronic EngineeringImperial CollegeLondonUK