Novel Cmos Realizations of the Operational Floating Conveyor and Applications

Abstract

This paper presents novel CMOS realizations of the operational floating conveyor (OFC) based on novel block diagrams. It also introduces novel applications based on one of the proposed OFC realizations. The proposed OFC realization provides a wide bandwidth and a large gain bandwidth product. Hence, it exhibits wide bandwidth at higher gains. All the circuits in this paper are designed following a fair comparison criterion. The supply voltages are ±1.5 V . The reference DC current source IB is taken as 50 μA. The CMOS model for all circuits is identical. The transistor model is 0.5 μm CMOS process provided by MOSIS (AGILENT).

A CMOS based operational floating current conveyor

“…Also the proposed design has the highest 3dB frequency (bandwidth) which increased by 97.5% and 30.2% compared to others [2][13], respectively. [13] shows the highest DC open loop transimpedance gain which is OFC circuit. The proposed design is higher than the OFCC circuit presented in [2].…”

“…Figure 6 shows the proposed integrated CMOS based OFCC circuit. The open loop transimpedance gain Z t is expressed as [13]:…”

“…The output resistance seen at terminal Z [13]: The circuit is modeled and simulated using UMC 130nm technology kit in Cadence. The DC power supply used is 1.2 Volt.…”

“…However, OFCC presented in [2] is designed based on 90nm CMOS technology. The proposed design has a lower power consumption compared to [13] by about 0.9mW. ` V. APPLICATION BASED ON OFCC OFCC is a flexible analog device as there is floatation in its input and output terminals.…”

A CMOS based operational floating current conveyor and its applications

“…The voltage transfer gain from the Y terminal to the X terminal [5]: g m : the transistor transconductance g d : drain to source conductance (1) (2) 978-1-5090-0246-7/15/$31.00 ©2015 IEEE ` The input resistance seen at terminal X [5]:…”