共查询到20条相似文献,搜索用时 31 毫秒
1.
Jiun-Wei Horng Chun-Li Kaewpoonsuk Chun-Ming Chang Hung-Pin Chou Chun-Ta Lin 《Circuits, Systems, and Signal Processing》2006,25(6):767-777
A new high input impedance voltage-mode universal biquadratic filter with one input terminal and five output terminals is
presented. The proposed circuit uses three differential voltage current conveyors (DVCCs), four resistors, and two grounded
capacitors. The proposed circuit can realize all the standard filter functions—lowpass, bandpass, highpass, notch, and allpass—simultaneously,
without changing the passive elements. The proposed circuit enjoys the features of high input impedance, orthogonal control
of resonance angular frequency and quality factor, use of only grounded capacitors, and low active and passive sensitivities. 相似文献
2.
Mohammad Aghaei Jeshvaghani Mehdi Dolatshahi 《Analog Integrated Circuits and Signal Processing》2014,79(1):95-104
This paper presents a new CMOS high-order Gm-C universal filter which can realize multi-mode (current, voltage, trans-resistance and trans-conductance) filtering functions, using grounded capacitors to absorbing shunt parasitic capacitances and a reduced number of active elements which leads to the minimum chip size and power consumption. Furthermore, in current-mode implementation, the proposed circuit produces simultaneously multiple filtering functions while uses just one configuration of inputs. Also, as the result of sensitivity analysis shows, the new filter structure has a very low sensitivity to the values of capacitors and trans-conductance elements. However, the proposed Gm-C filter is designed and simulated in HSPICE using 0.18 μm CMOS technology parameters and HSPICE simulation results have very close agreement with theoretical results obtained from MATLAB which justifies the design accuracy and low-power, multi-mode, multi-output universal filtering performance of the proposed circuit. 相似文献
3.
Muhammed A. Ibrahim Hakan Kuntman 《AEUE-International Journal of Electronics and Communications》2004,58(6):429-433
In this work, a novel circuit configuration for realizing a differential voltage-mode Kerwin-Huelsman-Newcomb (KHN) biquad filter with high common-mode rejection ratio (CMRR) is presented. The proposed circuit is based on using the dual output differential difference current conveyor (DO-DDCC). The circuit uses three DO-DDCCs, two capacitors and five resistors. All the passive elements are grounded, which is important in integrated circuit implementation point of view. The differential voltage input signal is applied to high input impedance terminals, which is important in the voltage-mode operations. SPICE simulation results are included to verify the theory. 相似文献
4.
Fırat Kaçar Bilgin Metin Hakan Kuntman Oguzhan Cicekoglu 《International Journal of Electronics》2013,100(5):499-510
In this article, a new complementary metal oxide semiconductor (CMOS) high-performance fully differential second-generation current conveyor (FDCCII) implementation is proposed. The presented FDCCII provides high-output impedance at terminals Z+ and Z?, good linearity and excellent output–input current gain accuracy. Also, the proposed FDCCII circuit operates at a supply voltage of ±1.3 V. The applications of the FDCCII to realise voltage-mode multifunction filters are given. Simulations are performed using TSMC CMOS 0.35-μm technology to verify theoretical results. 相似文献
5.
Orapin Channumsin Tattaya Pukkalanun Worapong Tangsrirat 《Microelectronics Journal》2012,43(8):555-561
This paper presents a versatile voltage-mode universal active filter with one input and five output terminals. The proposed circuit is based on using the recently reported active building block, namely differential difference current conveyor transconductance amplifier (DDCCTA). It employs two DDCCTAs as active elements together with two resistors and two capacitors as passive elements, which are all grounded. The circuit simultaneously realizes all the five standard biquadratic filter functions; i.e., lowpass (LP), bandpass (BP), highpass (HP), bandstop (BS) and allpass (AP), without changing circuit topology. The proposed circuit also has the advantage of high-input impedance terminal, and exhibits electronic tunability of its important parameters through the bias current of the DDCCTA as well as low sensitivity performance. PSPICE simulations using 0.5 μm MIETEC CMOS process are used to validate the theoretical predictions. 相似文献
6.
《Microelectronics Journal》2015,46(5):362-369
A new solution for an ultra-low-voltage, low-power, bulk-driven fully differential-difference amplifier (FDDA) is presented in the paper. Simulated performance of the overall FDDA for a 50 nm CMOS process and supply voltage of 0.4 V, shows dissipation power of 31.8 μW, the open loop voltage gain of 58.6 dB and the gain-bandwidth product (GBW) of 2.3 MHz for a 20 pF load capacitance. Despite the very low supply voltage, the FDDA exhibits rail-to-rail input/output swing. The circuit performance has also been tested in two applications; the differential voltage follower and the second-order band-pass filter, showing satisfactory accuracy and dynamic range. 相似文献
7.
Muhammad Taher Abuelma’atti Hussain Abdullah Al-zaher 《Analog Integrated Circuits and Signal Processing》1998,16(3):239-244
A new universal voltage-mode second-order filter circuit is presented. The circuit uses five current-feedback operational amplifiers, two grounded capacitors three grounded resistors and three floating resistors. The circuit can realize all the standard filter functions; lowpass, highpass, bandpass, notch and allpass, without changing the passive elements. The proposed circuit enjoys independent grounded-resistance-control of the natural frequency and the bandwidth, low output impedances, high input impedance as well as low active and passive sensitivities. 相似文献
8.
For the first time, a universal voltage-mode filter with three inputs and a single output has been realized by employing two 'grounded' capacitors in addition to two active current conveyors and two resistors. The proposed circuit offers the following advantageous features: simultaneous realization of voltage-mode low-pass, band-pass, high-pass, notch and all-pass filter responses from the same configuration; no requirement of critical component matching conditions; no requirement of inverting-type voltage input signal; employment of two grounded capacitors ideal for integration; and low active and passive sensitivity performance. H-SPICE simulation results confirm the theoretical analysis. 相似文献
9.
Ali Kircay 《International Journal of Electronics》2013,100(2):212-219
In this article, a new current-mode square-root-domain first-order multifunction filter is designed. The filter circuit has a very simple structure; it uses only the Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) and a grounded capacitor. All transistors’ aspect ratios are the same. It provides lowpass, highpass and allpass responses simultaneously for a single input signal. It can be electronically tuned by changing an external DC current. The filter operates with a single supply voltage of 2.5 V. The proposed circuit has been simulated with PSPICE electronics circuit simulation program (Cadence OrCAD Capture CIS Version 9.2) simulation programs using TSMC 0.35 μm (Taiwan Semiconductor Manufacturing Company) Complementary Metal-Oxide-Semiconductor (CMOS) process parameters. 相似文献
10.
F?rat Kaçar 《Microelectronics Journal》2010,41(10):632-638
In this paper novel lossless and lossy grounded parallel inductance simulators are reported. All grounded inductor simulator circuits employing only a single DXCCII and three passive components are proposed. The proposed topologies realized all grounded parallel inductance variations. To demonstrate the performance of the presented DXCCII based parallel inductance simulators, we used one of the circuits to construct a third order high-pass filter, a voltage-mode band-pass filter and LC oscillator. Simulation results are given to confirm the theoretical analysis. The proposed DXCCII and its applications are simulated using CMOS 0.35 μm technology. 相似文献
11.
Sudhanshu Maheshwari 《Circuits, Systems, and Signal Processing》2008,27(1):123-132
A new canonical first order voltage-mode all-pass section (VM-APS) employing a single grounded capacitor as the only passive
element and two differential voltage current conveyors as the active elements is proposed. The circuit, with its attractive
features of resistorless realization, voltage-controlled pole frequency and low impedance voltage output is a novel and unique
offering to the field and an addition to the rich literature on the subject. PSPICE simulations are carried out in 0.5 μ CMOS
technology to validate the utility of the proposed circuit. 相似文献
12.
Mostafa Parvizi 《International Journal of Electronics》2019,106(3):440-454
ABSTRACTIn this article, a new low-power multiple-input, single-output (MISO) multi-mode universal biquad operational transconductance amplifier-capacitor (OTA-C) filter with a minimum number of active and passive components is proposed. The proposed filter employs three OTAs, one inverter and two grounded capacitors. The proposed filter can realise all filter frequency responses including low-pass (LP), band-pass (BP), high-pass (HP), band-stop (BS) and all-pass (AP) in all operation modes including voltage, current, tranasresistance and transconductance modes using the same topology. Furthermore, sensitivity analysis is done which shows that the proposed filter has a low sensitivity to the values of the active and passive elements. The proposed filter is simulated in HSPICE using 0.18 µm CMOS technology. The HSPICE simulation results demonstrate that the proposed filter consumes only 35 μW at 2.5 MHz from a ±0.5 V supply voltage, while all of the transistors are biased in strong inversion region. Also, the simulation results are in a close agreement with the theoretical analysis which is done in MATLAB. Furthermore, the process, voltage and temperature variation simulations are done to study the effect of non-idealities on the performance of the proposed filter. It is shown that the simulation results justify a 4.8%, 0.8% and 20% variations of the centre frequency for process, voltage and temperature, respectively. Finally, Monte-Carlo, noise and transient simulations are done to justify the good performance of the proposed filter performance. 相似文献
13.
Norbert Herencsár Jaroslav Koton Kamil Vrba Ivo Lattenberg 《International Journal of Electronics》2013,100(4):365-379
In this article, a new voltage-mode second-order universal frequency filter and sinusoidal oscillator using only single differential-input buffered and transconductance amplifier (DBTA) is presented. The proposed voltage-mode filter structure using single DBTA and four passive elements can provide all standard filter functions, i.e. low-, band-, high-pass, band-stop, and all-pass without changing the circuit topology and enables independent control of the quality factor Q using single passive element. The circuit requires the minimal number of active and passive elements with no conditions for component matching. By slight modification of the proposed filter structure, the new DBTA-based sinusoidal oscillator is easily obtained. The oscillation condition and the oscillation frequency are independently adjustable by different virtually grounded passive elements. The proposed sinusoidal oscillator employs only grounded capacitors. The passive and active sensitivities of all the proposed circuit configurations are low. PSPICE simulations using a BJT realisation of DBTA and experimental results based on commercially available amplifiers OPA860 and MAX436 are included, which prove the workability of the proposed circuits. 相似文献
14.
Maneesha Gupta Bhawna Aggarwal Anil Kumar Gupta 《Analog Integrated Circuits and Signal Processing》2013,75(1):67-74
This paper presents a novel high performance self-biased cascode current mirror (CM) for CMOS technology. The proposed circuit shows a resistance compensated high bandwidth CM operating at low voltages. This circuit uses super cascode configuration to obtain high output impedance required for high performance of CM. Active implementation of passive resistances of the proposed circuit is shown. The simulations of proposed CM are carried out by Mentor Graphics Eldospice based on TSMC 0.18 μm CMOS technology, for input current range of 0–500 μA. A bandwidth of 2.26 GHz, input and output resistances of 679 Ω and 482 MΩ respectively, are obtained with a single supply voltage of ?1 V. 相似文献
15.
In this paper two new voltage-mode (VM) universal filters employing three plus-type differential voltage current conveyors
(DVCC+s) and grounded passive elements are presented. The first proposed filter is a single-input five-output (SIFO) circuit
which can realize simultaneously all of the standard responses, i.e. low-pass (LP), band-pass (BP), high-pass (HP), all-pass
(AP) and notch (NH) from the same configuration. The second proposed circuit is a three-input single-output (TISO) universal
filter for realizing standard responses depending on the selection of the input signal from the same topology. Both of the
proposed filters have the advantage of a high input impedance, which enables easy cascading to obtain higher order filters.
The proposed filters are simulated using the SPICE program to verify the theoretical analysis. 相似文献
16.
Jiun-Wei Horng 《Circuits, Systems, and Signal Processing》2008,27(4):553-562
A new high input impedance voltage-mode universal biquadratic filter with three input terminals and five output terminals
is presented. The proposed circuit uses three plus-type differential difference current conveyors, two grounded resistors
and two grounded capacitors. The proposed circuit can realize all the standard filter functions: lowpass, bandpass, highpass,
notch and allpass, without component matching conditions. The proposed circuit offers the features of high input impedance,
low active and passive sensitivities and the use of only grounded resistors and capacitors. 相似文献
17.
Mustafa Altun Hakan Kuntman Onur Korhan Sayin 《International Journal of Electronics》2013,100(11):1115-1126
In this article, a universal nth-order current-mode filter employing electronically tunable second-generation current conveyors (ECCIIs) and grounded passive elements is proposed. As the current gain of the ECCII can be controlled electronically by adjusting the ratio of its DC bias currents, it is possible to tune all the coefficients of the transfer function independently. SPICE simulation results using TSMC 0.35 μm CMOS process model are included to verify the theory. Furthermore, a design example of a fourth-order video band filter is given to illustrate the application of the introduced topology in analog circuit design. 相似文献
18.
P. Pittet G.-N. Lu L. Quiquerez J.-F. Chateaux 《Analog Integrated Circuits and Signal Processing》2010,65(3):407-413
A lossless floating inductance has been simulated using two differential voltage current conveyors, two resistors and one
grounded capacitor. The proposed floating inductance needs not component matching condition. Base on the proposed floating
inductance as building block, a new voltage-mode universal biquadratic filter with one input and five outputs can be obtained.
The proposed universal biquad uses two differential voltage current conveyors, three resistors and two grounded capacitors.
All standard filter functions; highpass, bandpass, lowpass, notch and allpass can be obtained, simultaneously, without changing
the passive elements. The proposed universal biquad has the features of using only grounded capacitors and orthogonal controllable
of resonance angular frequency and quality factor. 相似文献
19.
This paper describes the design and realization of a sub 1-V low power class-AB bulk-driven tunable linear transconductor using a 0.18-μm CMOS technology. The proposed transconductor employs a class-AB bulk-driven differential input voltage follower and a passive resistor to achieve highly linear voltage-to-current conversion. Transconductance tuning is achieved by tuning the differential output current of the core transconductor with gain-adjustable current mirrors. With 10.4-μA current consumption from a 0.8-V single power supply voltage, simulation results show that the proposed transconductor achieves the total harmonic distortion (THD) of <?40 dB for a peak differential input voltage range of 800 mV at frequencies up to 10 kHz. The simulated input-referred noise voltage integrated over 10-kHz bandwidth is 100 μV, resulting to an input signal dynamic range of 75 dB for THD <?40 dB. A biquadratic Gm-C filter is designed to demonstrated the performance of the proposed transconductor. At the nominal 10-kHz cut-off frequency, the filter dissipates 34.4 μW from a 0.8-V supply voltage and it achieves an input signal dynamic range of 67.4 dB for the third-order intermodulation distortion of <?40 dB. 相似文献
20.
In this paper two new grounded inductance simulators based on DXCCII suitable for operation in 30 kHz-30 MHz frequency range, are presented. The proposed circuits both employ only a single dual X second-generation current conveyor (DXCCII) active device accompanied with three and four passive elements, respectively. The accuracy of the simulated inductors is verified by implementing them in some filter applications. Also, a novel multi-input single-output universal filter derived from one of the new grounded inductance simulators is simulated to demonstrate the functionality of the proposed circuit. Simulation results using AMS 0.35 μm CMOS process technology parameters are included. 相似文献