Abstract
In this work, a new CMOS based grounded voltage controlled positive resistor (GVCPR) with one control voltage is proposed. The proposed GVCPR employs only five CMOS transistors, one operated in triode region and others operated in saturation region or OFF. One of the main properties of the proposed GVCPR is its ultra low power consumption; however, a single active component matching condition is needed. A number of SPICE simulation results using IBM 0.13 μm SIGE013 level-7 CMOS process parameters such as its performance analysis and verification in tunable voltage-mode first-order all-pass filter and high-Q & high-gain voltage-mode multiple-feedback second-order band-pass filter are included to confirm the theory. The superior performance of the proposed GVCPR is also proven by numeric Figure of Merit calculation. DOI: http://dx.doi.org/10.5755/j01.eee.20.7.8023
Highlights
Tunable resistors are widely used in analog signal processing
The proposed grounded voltage controlled positive resistor (GVCPR) employs only five CMOS transistors, one operated in triode region and others operated in saturation region or OFF
SIMULATION RESULTS To verify the theoretical study, the behavior of the proposed GVCPR shown in Fig. 2 has been verified by SPICE simulations
Summary
Tunable resistors are widely used in analog signal processing. The application of tunable resistors can be found in telecommunications, electronics and measurements such as active RC filters with variable cut-off frequencies, controlled oscillators, variable gain amplifiers, voltage or current dividers, and voltage or current to frequency converters. Reported that in standard CMOS technology can be electronically controlled externally via control voltage(s) [3]–[9]. In [12], the controlled grounded resistor is made up of a junction gate field-effect transistor (JFET) and an active building blocks such as voltage buffer (VB) and second/generation current conveyor (CCII). A new CMOS based grounded voltage controlled positive resistor (GVCPR) with one control voltage is proposed. The proposed GVCPR employs only five CMOS transistors, one operated in triode region and others operated in saturation region or OFF.
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