Four Input Single Output based third order universal filter using Four Terminal Floating Nullor

2017 ◽  
Vol 93 (1) ◽  
pp. 87-98 ◽  
Author(s):  
Huirem Tarunkumar ◽  
Ashish Ranjan ◽  
Subrahmanyam Perumalla ◽  
Nonglen Meitei Pheiroijam
Keyword(s):  
Universal Filter ◽  
Third Order ◽  
Single Output ◽  
Four Terminal Floating Nullor

scholarly journals Third Order Universal Filter Using Single Operational Transresistance Amplifier

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Mourina Ghosh ◽  
Sajal K. Paul ◽  
Rajiv Kumar Ranjan ◽  
Ashish Ranjan
Keyword(s):  
Cmos Technology ◽  
Pass Band ◽  
Universal Filter ◽  
Third Order ◽  
Operational Transresistance Amplifier ◽  
Single Output ◽  
Theoretical Design ◽  
Low Pass ◽  
Band Pass ◽  
High Pass

This paper proposes a multi-input single-output (MISO) third order voltage mode (VM) universal filter using only one operational transresistance amplifier (OTRA). The proposed circuit realizes low-pass, high-pass, all-pass, band-pass, and notch responses from the same topology. The PSPICE Simulation results using 0.5 μm CMOS technology agree well with the theoretical design.

Second Order Universal Filter Using Four Terminal Floating Nullor (FTFN)

2019 ◽  
Vol 28 (06) ◽  
pp. 1950091 ◽  
Author(s):  
Ashish Ranjan ◽  
Subrahmanyam Perumalla ◽  
Ravi Kumar ◽  
Vista John ◽  
Shantikumar Yumnam
Keyword(s):  
Notch Filter ◽  
Second Order ◽  
Band Pass Filter ◽  
Universal Filter ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Input Selection ◽  
Single Output ◽  
Low Pass ◽  
Four Terminal Floating Nullor

In this research paper, a voltage mode second order universal filter using Four Terminal Floating Nullor (FTFN) is presented. The proposed design uses Three Input Single Output (TISO) for the realization of all filter responses namely Low Pass Filter (LPF), High Pass Filter (HPF), Band Pass Filter (BPF), Notch Filter (NF) and All Pass Filter (APF) by using proper input selection. The analog building block, FTFN is simply realized with two commercially available AD844 ICs. The proposed second order universal filter comes with a single FTFN block with four passive components in which no component matching is required for filter realization. The universal filter is well verified using PSPICE simulation. In addition, experimental verification for the second order APF has been performed that confirms the theoretical expectations.

NOVEL VOLTAGE-MODE UNIVERSAL FILTER USING ONLY TWO CDBAs

2005 ◽  
Vol 14 (01) ◽  
pp. 159-164 ◽  
Author(s):  
SUDHANSHU MAHESHWARI ◽  
IQBAL A. KHAN
Keyword(s):  
Pass Band ◽  
Universal Filter ◽  
Input Selection ◽  
Voltage Mode ◽  
Single Output ◽  
Control Computer ◽  
Low Pass ◽  
Band Pass ◽  
Pass Through ◽  
High Pass

A novel voltage-mode universal filter employing only two current differencing buffered amplifiers (CDBAs) is proposed. The filter uses four inputs and single output to realize six responses, viz. low-pass, high-pass, inverting band-pass, noninverting band-pass, band-elimination, and all-pass through input selection with independent pole-Q control. Computer simulation results using SPICE are also given to verify the theory.

Five-inputs single-output voltage mode universal filter with high input and low output impedance using VDDDAs

Optik ◽  
2017 ◽  
Vol 128 ◽  
pp. 14-25 ◽  
Author(s):  
Surasak Sangyaem ◽  
Surapong Siripongdee ◽  
Winai Jaikla ◽  
Fabian Khateb
Keyword(s):  
Output Voltage ◽  
Output Impedance ◽  
Universal Filter ◽  
High Input ◽  
Voltage Mode ◽  
Single Output

scholarly journals Electronically Tunable TISO Voltage-Mode Universal Filter Using Two LT1228s

2021 ◽  
Vol 12 (1) ◽  
pp. 62-74
Author(s):  
May Phu Pwint Wai ◽  
Winai Jaikla ◽  
Surapong Siripongdee ◽  
Amornchai Chaichana ◽  
Peerawut Suwanjan
Keyword(s):  
Integrated Circuits ◽  
Harmonic Distortion ◽  
Input Voltage ◽  
Angular Frequency ◽  
Pass Band ◽  
Universal Filter ◽  
Voltage Mode ◽  
Single Output ◽  
Low Pass ◽  
Electronically Tunable

This study aims to design an electronically tunable voltage-mode (VM) universal filter utilizing commercially available LT1228 integrated circuits (ICs) with three-input and single-output (TISO) configuration. With the procedure based on two integrator loop filtering structures, the proposed filter consists of two LT1228s, four resistors, and two grounded capacitors. It realizes five filter output responses: low-pass, all-pass, band-reject, band-pass, and high-pass functions. By selecting input voltage signals, each output responses can be achieved without changing the circuit architecture. The natural angular frequency can be controlled electronically. The input voltage nodes Vin1 and Vin3 possess high impedance. The output node has low impedance, so it can be cascaded to other circuits. The performance of the proposed filter is corroborated by PSpice simulation and hardware implementation which support the theoretical assumptions. The result shows that the range of total harmonic distortion (THD) is lower than 1%, and that the higher the temperature is, the lower the natural angular frequency is.

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