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ISSN:2394-3661 | Crossref DOI | SJIF: 5.138 | PIF: 3.854

International Journal of Engineering and Applied Sciences

(An ISO 9001:2008 Certified Online and Print Journal)

An Innovative Approach of High Performance CMOS Based Current Conveyor-II for ASP Applications

( Volume 4 Issue 5,May 2017 ) OPEN ACCESS
Author(s):

Ayushi Chaurasia, Rajinder Tiwari

Abstract:

The main purpose of the paper is to present a CMOS current conveyor circuit which is best suited for the implementation of low- voltage, low-power and high bandwidth circuits. To achieve the bandwidth of current transfer function the circuit can be operated for a power supply of fraction of volt which is of MHz range and a power consumption of milli-watt range. Firstly, a class A current conveyor circuit operating from a single supply of fraction of volt having a high voltage swing capability is discussed and then the same circuit is modified to work as a class AB with a low voltage power supply in the fraction of volt range, while maintaining the same voltage swing capability. The body effect causes the threshold voltage variation and the current circuit realization is insensitive to it, which minimizes the layout area and makes both the circuits a valuable addition to the analog signal processing applications. The proposed structure has the required performance in terms of a bandwidth with level 3 CMOS technology and it operates as a linear circuit which is established with the help of 0.3 µm simulation using the PSpice software. In the field of analog signal processing this proposed current conveyor circuit has many applications. At 0.2µm the proposed circuit operates satisfactorily with high performance with the desired applications. The desired properties and the performance of the proposed circuit are confirmed by the PSpice simulation with the modeled parameters.

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