Z-Copy Current Differencing Buffered Amplifier based Schmitt trigger circuit without passive components

• Main Authors: Kankanampati Maheswari, Avireni Srinivasulu, Cristian Ravariu
• Format: Article
• Language: English
• Published: KeAi Communications Co., Ltd. 2019-07-01
• Series: Solid State Electronics Letters
• Online Access: http://www.sciencedirect.com/science/article/pii/S2589208819300249
• ISSN: 2589-2088

In this paper Z-Copy Current Differencing Buffered Amplifier (ZCCDBA) based new Schmitt trigger is introduced without passive components. This ZCCDBA is a newly introduced active element. It consists of three blocks, namely, Current Differencing Unit (CDU), Voltage Buffer and Third Generation Current Conveyor (CCIII+). The CCIII purpose is to copy the Z terminal voltage and current. The proposed Schmitt trigger consists of a single ZCCDBA block without passive components. This type of configuration helps and suits for IC implementation. The proposed circuit was simulated under ±0.8 V supply voltage with the bias currents such as IB1 = IB2 = 60 µA and IB3 = 10 µA using Cadence tool and with model parameters of gpdk 180 nm technology. Keywords: Current differencing unit, Schmitt trigger, Voltage mode, Z-Copy Current Differencing Buffered Amplifier