M. Somdunyakanok, “Three Inputs Single Output Current mode Universal Filter,” Proceeding of the 2009 12th IEEE International Analog VLSI Workshop, Chiang Mai, 18-20 November 2009, pp.113-116.

has been cited by the following article:

• TITLE: An Active-Only Temperature-Insensitive Current-Mode Biquad Filter Based on Differentiator Structures Employing CCCCTAs

  AUTHORS: Supawat Lawanwisut, Montree Siripruchyanun, Winai Jaikla

  KEYWORDS: Active-Only; CCCCTA; Current-Mode; Biquad Filter

  JOURNAL NAME: Circuits and Systems, Vol.4 No.3, June 27, 2013

  ABSTRACT: This article presents an active-only current-mode universal biquad filter performing three standard functions: low-pass, high-pass and band-pass function, which can be readily modified to achieve the rest functions (band-stop and all-pass). The circuit principle is based on active-only circuit designed by using differentiators which are constructed from current controlled current conveyor transconductance amplifier (CCCCTA) cooperating with an internally frequency compensated operational amplifier (OA). The features of the circuit are that: the pole frequency and quality factor can be independently tuned via the input bias currents and it is ideally temperature-insensitive, its circuit description is very simple, consisting of 3 CCCCTAs and 2 operational amplifiers, and the proposed circuit is very appropriate for further developing into integrated circuit architecture. The PSpice simulation results are shown. The given results agree well with the theoretical anticipation.