scholarly journals Current Controlled Current Differencing Buffered Amplifier: Implementation and Applications

2004 ◽  
Vol 27 (4) ◽  
pp. 219-227 ◽  
Author(s):  
Sudhanshu Maheshwari ◽  
Iqbal A. Khan
Keyword(s):  
Active Element ◽  
Current Mode ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Current Range ◽  
Current Input ◽  
Band Pass ◽  
Simulation Results ◽  
Definition Of ◽  
Harmonic Distortions

A new four terminal current-controlled active element is introduced, where parasitic resistances at two current input ports are controlled leading to the definition of current-controlled current differencing buffered amplifier. Bipolar implementation and as application current-mode band-pass filter circuits are proposed. Simulation results using real device parameters are included, which show device bandwidth of 35 MHz, low total harmonic distortions, and tuning over a wide current range.

scholarly journals Electronically Tunable Third Order Feed Forward CM Band Pass Filter for Q = 10

2021 ◽  
Vol 04 (10) ◽  
Author(s):  
Dr. D. D. Mulajkar ◽  
Keyword(s):  
Integrated Circuit ◽  
High Frequency ◽  
Current Mode ◽  
Band Pass Filter ◽  
Third Order ◽  
Pass Filter ◽  
Op Amp ◽  
Current Input ◽  
Band Pass ◽  
Electronically Tunable

A new electronically tunable current-mode third order filter is proposed in this paper. OP-AMP is used as an active building block. With current input the filter can realize band pass responses in current mode. The filter circuit realizes calculated transfer function. The other attractive features of the filter are a) Employment of minimum active and passive elements b) Responses are electronically tunable c) Low active and passive sensitivities d) Suitable for high frequency operation e) Ideal for integrated circuit implementation.

CMOS-Based Current-Mode Elliptic Ladder Band-Pass Filter

2015 ◽  
Vol 781 ◽  
pp. 168-171
Author(s):  
Ekkapong Saising ◽  
Thanate Pattanathadapong ◽  
Pipat Prommee
Keyword(s):  
Power Consumption ◽  
Power Supply ◽  
Integrated Circuit ◽  
Current Mode ◽  
Bias Current ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Band Pass ◽  
Simulation Results ◽  
Filter Prototype

This paper presents the realization of CMOS-based current-mode Elliptic ladder band-pass filter by using doubly terminated Elliptic RLC ladder band-pass filter prototype [1], [2]. The proposed circuit contains lossless integrators, lossy integrators and multiple outputs current gains. The frequency response of the proposed circuit can be electronically tuned between 1 MHz and 100 MHz by adjusting bias current between 1μA and 1,000 μA. The proposed circuit uses 1.5 V power supply and 0.1 W power consumption. The passive elements that contained in the proposed filter are only grounded capacitors without using other passive elements that can make this filter suitable for integrated circuit. PSPICE simulation results are carried out by using TSMC 0.18 μm technology and agreed well with the theory.

GENERATION OF GROUNDED CAPACITOR ICCII-BASED BAND-PASS FILTERS

2007 ◽  
Vol 16 (04) ◽  
pp. 553-566 ◽  
Author(s):  
AHMED M. SOLIMAN
Keyword(s):  
Transfer Function ◽  
Current Mode ◽  
Negative Resistance ◽  
Current Conveyor ◽  
Band Pass Filter ◽  
Spice Simulation ◽  
Pass Filter ◽  
Voltage Mode ◽  
Band Pass ◽  
Simulation Results

A new current-mode band-pass filter using the inverting second-generation current conveyor (ICCII) is introduced. The circuit is generated from a frequency-dependent negative resistance (FDNR)-C circuit realized using ICCII+. It is observed that a voltage-mode band-pass filter using two CCII+ has similar transfer function to this current-mode filter. The adjoint network theorem is used to demonstrate the transformation between the two circuits. Two new voltage-mode grounded capacitor band-pass filters using two ICCII are also introduced. The first voltage-mode circuit is generated from the FDNR-C circuit and employs two opposite Z polarity ICCII. The second voltage-mode circuit is obtained from the first circuit by relocation of the input and a grounded terminal. Two new additional grounded capacitor and grounded resistor current-mode band-pass filters with independent control on the filter Q are also introduced. Spice simulation results with 0.35 μm CMOS transistors model are included to demonstrate the practicality of the two ICCII- band-pass current-mode filter.

Analisa Elemen Multiarms Resonator Open Loop Pada Band-Pass Filter Mikrostrip Yang Bekerja Di Frekuensi EHF

2021 ◽  
Vol 8 (2) ◽  
pp. 93-104
Author(s):  
M. Reza Hidayat ◽  
Difa Dwi Juliantara Sukmawan
Keyword(s):  
Bandpass Filter ◽  
Open Loop ◽  
Band Pass Filter ◽  
Pass Filter ◽  
A Value ◽  
Resonator Design ◽  
Band Pass ◽  
Patch Width ◽  
Simulation Results ◽  
Patch Length

The use of bandpass filters is commonly used but the use of specifications varies depending on needs, in this case the microstrip bandpass filter is expected to observe the multiarms characteristics of the open loop resonator on the performance of the bandpass filter for EHF frequencies. The design of this microstrip bandpass filter uses a multiarms open loop resonator design where at the beginning of the simulation stage uses only 1 arm with patch width, arm spacing, feeder line width and patch length based on trial and error. The final simulation results are obtained with a connector distance of 2 mm and a distance of 1 mm between arms with a value of S11 = -13.8 dB and S21 = -2.8 dB at a frequency of 30.8 GHz based on the simulation results. The filter has been successfully fabricated but cannot be measured because the frequency is too high and the measuring instrument cannot measure the frequency

CMOS Implementation of Current Differencing Operational Amplifier and Its Notch Filter Application

2019 ◽  
Vol 29 (08) ◽  
pp. 2050132
Author(s):  
Muhammed Emin Başak
Keyword(s):  
Operational Amplifier ◽  
Process Model ◽  
Active Element ◽  
Harmonic Distortion ◽  
Notch Filter ◽  
Current Mode ◽  
Monte Carlo Analysis ◽  
Cmos Process ◽  
Band Pass Filter ◽  
Pass Filter

Active elements are fundamental circuits for a wide scope of scientific and industrial processes. Many researchers have examined active devices to implement filters, oscillators, rectifiers, and converters. This paper presents the current differencing operational amplifier (CDOA) as an active element, firstly implemented with CMOS transistors. The input part of this circuit is a current differencing unit and the conventional operational amplifier (Op-Amp) pursues it. A new realization of a notch filter consists of CDOA is suggested. Voltage-mode band-pass filter and current-mode notch filter are presented as a different filter applications. Simulation results using TSMC 0.18-[Formula: see text]m CMOS process model are used to verify the theoretical analyses. The sensitivity, noise, total harmonic distortion (THD) and the Monte Carlo analysis have been performed to demonstrate the effectiveness of the proposed active element and notch filter.

A SAW Filter of Elliptic Structure IDT

2014 ◽  
Vol 665 ◽  
pp. 623-628
Author(s):  
Dai Qiang Wang ◽  
Liang Rong Li ◽  
Yu Qing Chen ◽  
Zu Ming Yao ◽  
Hong Gong ◽  
...  
Keyword(s):  
Thin Films ◽  
Center Frequency ◽  
Band Pass Filter ◽  
Function Model ◽  
Modeling Tools ◽  
Pass Filter ◽  
Band Pass ◽  
Simulation Results ◽  
Weighting Methods ◽  
Piezoelectric Substrate

The design uses silicon-AlN thin films as the piezoelectric substrate, Use apo- dization weighting methods to optimize the design of IDT. The improved δ function model was Modeling Tools of Apodization weighted ellipse IDT structure, According to the result of simulation, we designed a layout of SAW band-pass filter and fabricated a sample of it which center frequency is 300MHz and insertion loss is 7dB, The research shows the consistency of simulation results with the experimental results.

A NOVEL CCII-BASED TUNABLE INDUCTANCE AND HIGH FREQUENCY CURRENT-MODE BAND PASS FILTER APPLICATION

2006 ◽  
Vol 15 (06) ◽  
pp. 849-860 ◽  
Author(s):  
SAMIR BEN SALEM ◽  
DORRA SELLAMI MASMOUDI ◽  
MOURAD LOULOU
Keyword(s):  
High Frequency ◽  
Current Mode ◽  
Negative Resistance ◽  
Basic Block ◽  
Band Pass Filter ◽  
Compensation Strategy ◽  
Pass Filter ◽  
Passive Resistance ◽  
Band Pass ◽  
High Level

In this paper, we introduce an implementation of a CCII-based grounded inductance operating in class AB. In order to get tunable characteristics of the design, a translinear CCII configuration is used as a basic block for its high level of controllability. A frequency characterization of the translinear CCII is done. In order to optimize its static and dynamic characteristics, an algorithmic driven methodology is developed ending to the optimal transistor geometries. The optimized CCII has a current bandwidth of 1.28 GHz and a voltage bandwidth of 5.48 GHz. It is applied in the simulated inductance design. We first consider the conventional topology of the grounded inductance based on the generalized impedance converter principle. Making use of the controllable series parasitic resistance at port X in translinear CCII, we design tunable characteristics of the inductance. The effect of current conveyor's nonidealities has been taken into account. A compensation strategy has been presented. It is based on the insertion of a high active CCII-based negative resistance and a very low passive resistance. The compensation strategy does not affect the inductance tuning process. Simulation results show that the proposed inductance can be tuned in the range [0.025 μH; 15.4 μH]. The simulated inductance has been applied in a fully integrated tunable high frequency band pass filter to illustrate the versatility of the circuit. The filter is electrically tunable by controlling the conveyor's bias current.

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