A new ICCII based resistor-less current-mode first-order universal filter with electronic tuning capability. (September 2017)

• Record Type: Journal Article
• Authors: Safari, Leila; Yuce, Erkan; Minaei, Shahram
• Is Part Of: Microelectronics journal. Volume 67(2017)
• Page Start: 101
• Page End: 110
• Publication Date: 2017-09
• Subjects: Current-mode -- Electronically tunable filter -- First-order filter -- ICCII -- Universal filter; Microelectronics -- Periodicals; Microélectronique -- Périodiques; Microelectronics; Electronic journals; Journals - contents and abstracts; Periodicals; 621.3805
• DOI: 10.1016/j.mejo.2017.07.015
• Languages: English
• ISSNs: 0959-8324

Abstract

Abstract: In this paper, a new electronically tunable current-mode (CM) first-order universal filter as a new application for inverting second-generation current conveyors (ICCIIs) is proposed. The proposed circuit is based on two ICCII and a capacitor and does not need any resistors and critical passive component matching conditions. It has one input and multiple outputs and simultaneously realizes both inverting and non-inverting first-order low-pass, high-pass and all-pass responses from the same configuration. Employing ICCII as active building block makes possible using a single transistor in linear region as a variable resistor to control filter properties electronically. Nevertheless, the proposed CM first-order universal filter possesses a floating capacitor which can be easily realized in nowadays integrated circuit technologies. It is designed and simulated with SPICE program using 0.13 µm IBM CMOS parameters and supply voltage of ±0.75 V. Non-ideal analysis and Monte Carlo simulation results are also given, which prove good enough response even in the presence of non-idealities and process parameter variations.