Ultra-Low Voltage VDCC Design by Using DTMOS

Abstract

In this paper, a new ultralow voltage and ultralow power voltage differencing current conveyor based on dynamic threshold voltage MOS transistors was proposed. The simulations were performed by using LTSpice Program with TSMC CMOS 0.18 µm process parameters. A new notch filter configuration was also presented as an application for the proposed voltage differencing current conveyor. The power consumption of proposed voltage differencing current conveyor was simply 12.42 nW at symmetric ±0.2 V supply voltage. The simulation results were found in close agreement with the theoretical results.

A low‐power voltage differencing buffered amplifier

“…Another variant termed as Z copy VDBA (ZC‐VDBA) is reported by Guney et al These structures along with their salient features have been summarized in Table for comparative study. Some of the inferences from the Table are as follows: The proposed VDBA uses less number of transistors when compared with the structures presented in the literatures The 3‐dB bandwidth (BW) of TA of all previously reported structures is less than 400 MHz except the structures given by Sokmen et al and Guney et al The existing structures provide a transconductance value comparable to the proposed configuration at a much higher bias current. The supply voltage used is much higher in structures presented in the literatures …”

“…The 3‐dB bandwidth (BW) of TA of all previously reported structures is less than 400 MHz except the structures given by Sokmen et al and Guney et al The existing structures provide a transconductance value comparable to the proposed configuration at a much higher bias current. The supply voltage used is much higher in structures presented in the literatures Power consumption of the proposed design is much lower as compared with most of the existing structures except structure designed by Basak and Kacar The supply voltage used and power consumption for structrure discussed by Basak and Kacar are very low, but the tradeoff lies in much lower values of g m and 3‐dB BW. In literature, various techniques have been presented to meet reduced supply voltage requirements for digital and analog circuit design.…”

“…This leads to ease of circuit integration. The VDBA, therefore, has evolved as a promising choice for analog applications, and variety of VDBA structures have been reported in literature . The CMOS implementation of VDBA has been presented in Kacar et al and Khatib and Biolek .…”

Designed Filter with CCII+ and Analysis of EEG for Epilepsy and Alzheimer

“…have become widespread in amplifier circuits, integrator circuits, filter circuits, and differentiator circuits [13,[21][22][23][24].…”

Quadrature Oscillator Design with Gm-C Structure

“…Furthermore, surface acoustic wave oscillators [10] can be found. Filter design with active element as voltage differencing current conveyor [11] has been also reported.…”