Analytical synthesis of low-sensitivity voltage-mode odd-nth-order OTA-C elliptic filter structure with the minimum number of components

2007 ◽  
Author(s):  
Chun-Ming Chang
Keyword(s):  
Number Of Components ◽  
Elliptic Filter ◽  
Voltage Mode ◽  
Filter Structure ◽  
Minimum Number ◽  
Low Sensitivity ◽  
Analytical Synthesis

Voltage Differencing Gain Amplifier-Based nth-Order Low-Pass Voltage-Mode Filter

2018 ◽  
Vol 27 (06) ◽  
pp. 1850089 ◽  
Author(s):  
Zehra Gulru Cam Taskiran ◽  
Herman Sedef ◽  
Fuat Anday
Keyword(s):  
General Formula ◽  
Building Block ◽  
Transfer Functions ◽  
Building Blocks ◽  
Voltage Mode ◽  
Active Elements ◽  
Filter Structure ◽  
Low Pass ◽  
Minimum Number ◽  
Simple Filter

In this paper, a new active-C filter realizing the general [Formula: see text]th-order low-pass voltage transfer functions using [Formula: see text] voltage differencing gain amplifiers (VDGAs) is presented. In this realization minimum number of equal-valued grounded capacitors and [Formula: see text] active elements are used. Due to the adjustability of the transconductance of the VDGA with current, different gains can be realized using the same building block and a simple filter structure can be created. The filter which is composed of VDGA building blocks is suitable for integration and advantageous in terms of eliminating parasitic effects because all capacitors are grounded and the filter structure has no resistors. All simulations are performed on SPICE and the accuracy of this method is validated experimentally with commercially available products upon on-board circuit.

scholarly journals Voltage Mode Universal Biquad Using CCCII

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Ashish Ranjan ◽  
Sajal K. Paul
Keyword(s):  
Pass Band ◽  
Current Conveyors ◽  
Ic Design ◽  
Passive Components ◽  
Voltage Mode ◽  
Single Output ◽  
Low Pass ◽  
Minimum Number ◽  
Band Pass ◽  
Low Sensitivity

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 () and quality factor () via bias current of CCCIIs. PSPICE simulation results confirm the theory.

CCII-Based Nth-Order Mixed Mode Elliptic Filter with Grounded R and C

2015 ◽  
Vol 24 (03) ◽  
pp. 1550035 ◽  
Author(s):  
K. Ghosh ◽  
B. N. Ray
Keyword(s):  
Integrated Circuit ◽  
Mixed Mode ◽  
Passive Components ◽  
Elliptic Filter ◽  
Filter Structure ◽  
Integrated Circuit Fabrication ◽  
Circuit Fabrication ◽  
Even Order ◽  
Low Sensitivity ◽  
Synthesis Methodology

This paper presents a new nth-order elliptic filter structure with second generation current conveyor (CCII). Synthesis methodology for mixed mode odd and even order filter is proposed. The designed structure is emphasized on the basis of implementation of integrated circuit fabrication by using grounded passive components (resistors and capacitors). The proposed structure is designed for different point of interests: (i) no component constraint, (ii) the structure is compatible with equal capacitance design, which is suitable for integrated circuit fabrication, (iii) low sensitivity like LC ladder filter and (iv) nearly null group sensitivity. To validate the theory, HSPICE simulation with 0.13-μm process and BSIM level 53 model is carried with ±1.5 V power supply.

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