A 0.8V CMOS filter based on a novel low voltage operational transresistance amplifier

Ravindran, Arun; Savla, A.; Younus, I.; Ismail, Mohammed

doi:10.1109/mwscas.2002.1187049

Cited by 11 publications

(9 citation statements)

References 3 publications

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“…The biquadratic filters with multiple-input were proposed in [8], [11] that provide variant filtering functions by appropriately connecting the input terminals. High-order filters using OTRAs were also proposed in [9], [13]. However, some of these structures suffer from the circuit complexity or needs component-matching conditions for realizing some filtering functions.…”

Section: Introductionmentioning

confidence: 99%

Voltage-mode lowpass, highpass, bandpass biquadratic filter using OTRAs

Kumngern

Junnapiya

Chanwutitum

2013

2013 IEEE International Conference on Control System, Computing and Engineering

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This paper presents a new voltage-mode universal biquadratic filter using operational transresistance amplifiers as active building block. The proposed circuit offers the following attractive advantages: realization of highpass, bandpass, lowpass filters, simultaneously, from the same circuit, no requirements for component-matching conditions for realizing all filtering function, low active and passive components. The workability of the proposed filter has been confirmed by PSPICE simulators.

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Section: Introductionmentioning

confidence: 99%

Voltage-mode lowpass, highpass, bandpass biquadratic filter using OTRAs

Kumngern

Junnapiya

Chanwutitum

2013

2013 IEEE International Conference on Control System, Computing and Engineering

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“…CMOS OTRA-based biquadratic filters and oscillators are well studied in the literature [2]- [5], [9]- [11]. Using current feedback techniques, OTRAs have a bandwidth almost independent of the closed-loop voltage gain.…”

Section: Introductionmentioning

confidence: 99%

Realization of High-Order OTRA-MOSFET-C Active Filters

Hwang

Chen

et al. 2007

Circuits Syst Signal Process

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High-order linear transformation (LT) MOSFET-C active filters with reduced parasitic capacitance effects based on operational transresistance amplifiers (OTRAs) are presented in this paper. A systematic method is developed to realize voltage-mode LT OTRA-based filters efficiently. Based on the proposed design procedures, we can synthesize high-order filters with OTRAs with only MOSFET resistor circuits (MRCs) and virtual grounded capacitors. Signal processing circuits employing OTRAs have almost constant bandwidths because of the use of current-feedback configurations. A third-order Chebychev lowpass filter is demonstrated. HSPICE simulation results that confirm the theoretical analysis are obtained. Furthermore, the proposed circuits can be extended to higher-order filters.

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“…The OTRA is commercially available from several manufacturers under the name of current differencing amplifier or Norton amplifier. Recently, it has gained considerable attention with the introduction of several high-performance complementary metal oxide semiconductor (CMOS) OTRA realizations that are simpler and more efficient than the one shown in Figure 1 [4], [5], [8], [10], [11]. …”

Section: Introductionmentioning

confidence: 99%