A CMOS FTFN Realization with Constant-g(m) Rail-to-Rail Input Stage

Sayginer M., Altun M., Kuntman H.

IEEE Mediterranean Electrotechnical Conference, Ajaccio, France, 5 - 07 May 2008, pp.400-401 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Ajaccio
  • Country: France
  • Page Numbers: pp.400-401
  • Istanbul Technical University Affiliated: Yes


In this paper, an alternative CMOS realization of an FTFN with a rail-to-rail input stage is proposed. Input stage of the presented circuit is based on a three-times current mirror to realize lowered gin deviation within the whole common-mode input range. Output stage of the FTFN is constructed with using active-feedback cascode current mirrors to obtain higher output resistance at the output nodes Z and W. The performance of the proposed FTFN structure is simulated with a novel grounded inductance simulating topology with applying on a third-order high-pass filter. All simulation results are given using SPICE simulation program.