VM and CM Universal Filters Based on Single DVCCTA

A universal voltage-mode filter (VM) and a current-mode filter (CM) based on recently proposed active building block, namely, differential voltage current conveyor transconductance amplifier (DVCCTA) are proposed. Both the circuits use a single DVCCTA, two capacitors, and a single resistor. The filters enjoy low-sensitivity performance and low component spread and exhibit electronic tunability of filter parameters via bias currents of DVCCTA. SPICE simulation using 0.25 μm TSMC CMOS technology parameters is included to show the workability of the proposed circuits

Differential Difference Current Conveyor Transconductance Amplifier: A New Analog Building Block for Signal Processing

A new active building block for analog signal processing, namely, differential difference current conveyor transconductance amplifier (DDCCTA), is presented, and performance is checked through PSPICE simulations which show the usability of the proposed element is up to 201 MHz. The proposed block is implemented using 0.25 μm TSMC CMOS technology. Some of the applications are presented using the proposed DDCCTA, namely, a voltage mode multifunction filter, a current mode universal filter, an oscillator, current and voltage amplifiers, and grounded inductor simulator. The feasibility of DDCCTA and its applications is confirmed via PSPICE simulations

Reliability Analysis of Radiation Tolerant Low Voltage CCCII Circuit For Space Applications

In this paper, the impact of radiation on the MOS devices is investigated on recently reported programmablesecond generation Current Controlled Conveyor (CCCII) wherein some updates are suggested to take Hot Carrier Injection, Bias Temperature Instability, and Time Dependent Dielectric Breakdown into account. As radiation is yet another important factor that causes change in threshold voltage, the transistors which are amenable to larger threshold shift and may lead to functional failure are identified first. Subsequently, three possibilities; uses of all thin oxide devices, all thick oxide devices, and mixed devices are being investigate and it is found that while using mixed devices, the circuit becomes functional at lower voltage without any effective increase in leakage current. Architecture is updated to enhance the performance of circuits under time-based ageing and radiation environment. The major challenge is to control dynamic leakage and radiative noise due to imposed radiation. All simulations are carried out using 28nm CMOS technology models in Cadence Virtuoso environment using ±1.0V supply voltage and results have been verified with post layout netlist. Proposed circuit can function at low voltage with the reduced degradation for 8 years at 25 °C consumes less area as compared to the existing CCCII circuit with 0.008 FIT value

Single CDTA-Based Current Mode All-Pass Filter and Its Applications

This paper presents a single current difference transconductance amplifier (CDTA) based all-pass current mode filter. The proposed configuration makes use of a grounded capacitor which makes it suitable for IC implementation. Its input impedance is low and output impedance is high, hence suitable for cascading. The circuit does not use any matching constraint. The nonideality analysis of the circuit is also given. Two applications, namely, a quadrature oscillator and a high Q band pass filter are developed with the proposed circuit. The functionality of the circuit is verified with SPICE simulation using 0.35  m TSMC CMOS technology parameters

High-Frequency Tunable Grounded & Floating Incremental-Decremental Meminductor Emulator and Application

In this paper, a new design has been proposed for the realization of grounded and floating meminductor emulators built with two OTAs and two second-generation current conveyors. The proposed emulators can be configured in both incremental and decremental topology. This paper also proposes the application of meminductor as Amplitude Modulator (AM). The proposed circuits and its application claim that the circuit is much simpler in design and can be utilized in both topologies. The performance of all the proposed circuits has been verified with Cadence Virtuoso Spectre using standard CMOS 180nm. Furthermore, post-layout simulations and its comparison along with non-ideal and Monte Carlo analysis have been carried out in detail.Comment: 42 Pages, 24 Figure

High-Frequency Tunable Resistorless Memcapacitor Emulator and Application

In this paper, a new design has been proposed for the realization of high-frequency memcapacitor emulators built with three OTAs. This paper also proposes the application of memcapacitor as an amplitude modulator. Furthermore, applications of memcapacitor as a filter, Oscillator point attractor, and periodic doubler are also shown. The proposed circuits can be configured in both incremental and decremental topology. The proposed circuits and their application claim that the circuit is much simpler in design and can be utilized in both topologies. The performance of all the proposed circuits has been verified on Cadence Virtuoso Spectre using standard CMOS 180nm. Furthermore, post-layout simulations and their comparison have been carried out.Comment: 40 Pages, 25 figures, 6 Tables. arXiv admin note: substantial text overlap with arXiv:2205.0622

Voltage Mode Universal Biquad Using CCCII

This paper proposes a multi-input single-output (MISO) second-order active-C voltage mode (VM) universal filter using two second-generation current-controlled current conveyors (CCCIIs) and two equal-valued capacitors. The proposed circuit realizes low pass, band pass, high pass, all pass, and notch responses from the same topology. The filter uses-minimum number of passive components and no resistor which is suitable for IC Design. The filter enjoys low-sensitivity performance and exhibits electronic and orthogonal tunability of pole frequency (0) and quality factor (0) via bias current of CCCIIs. PSPICE simulation results confirm the theory

Realization of multi-mode universal shadow filter and its application as a frequency-hopping filter

This work presents a new active block called the differential current conveyor cascaded transconductance amplifier (DCCCTA) and implemented multi-mode biquadratic universal shadow filter. The frequency-hopping filter is implemented using a multi-mode universal shadow filter. The proposed circuit has two modes of operation: current mode (CM) and transadmittance mode (TAM). All-pass (AP), band-pass (BP), band-reject (BR), high-pass (HP), and low-pass (LP) responses are simultaneously accomplished. As intended, low input impedance for CM and high input impedance for TAM are acquired, while high output impedance is attained for both modes of operation. Inter-modulation distortion (IMD), percentage total harmonic distortion (%THD), and Monte Carlo analysis are also obtained. The theoretical results are verified using Cadence Virtuoso in 180 nm TSMC technology