Design of Low-Frequency Low-Pass Filters for Biomedical Applications

Hsu, Chun-Lung; Ho, Mean-Hom; Wu, Yu-Kuan; Chen, Ting‐Hsuan

doi:10.1109/apccas.2006.342101

Cited by 25 publications

(9 citation statements)

References 11 publications

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“…This interface is called analog front-end (AFE) [18]. Tunable filters are achieved with tunable capacitors and are generally used in any typical data acquisition for biomedical signals [19].…”

Section: Simulation Results and Applicationsmentioning

confidence: 99%

A New Floating and Tunable Capacitance Multiplier With Large Multiplication Factor

Al-Absi

Al-Khulaifi

2019

IEEE Access

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This paper presents a CMOS floating and tunable capacitance multiplier with a very large multiplication factor. The proposed design uses CCII and OTAs designed using MOSFETs biased in subthreshold region to provide low power consumption and high multiplication factor. TANNER TSPICE simulation tool is used to confirm the functionality of the design in 0.18µm TSMC CMOS technology. The circuit is powered using ±0.75V DC supply voltage. Simulation results indicate that the maximum multiplication factor is 3600 and the maximum error is 8.6%.

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Section: Simulation Results and Applicationsmentioning

confidence: 99%

A New Floating and Tunable Capacitance Multiplier With Large Multiplication Factor

Al-Absi

Al-Khulaifi

2019

IEEE Access

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“…Furthermore, with the flexibility in design trade-offs between LV LP and an acceptable bandwidth, the performance of the proposed DVCC is suitable for many applications, e.g. implantable biomedical devices where the processing signal possess a low amplitude and frequency in the range of millivolt and kilohertz, respectively [3][4][5][6][7].…”

Section: Gdmentioning

confidence: 99%

“…This issue can be translated to many undesirable traits such as poor gain-bandwidth product, low frequency response and low speed [2]. However, a multitude of circuits can exploit these disadvantages; biomedical, telemetry, real time speech recognition and other systems are utilizing signals with low frequency response property [3][4][5][6][7]. transconductance in comparison to the conventional gate transconductance, resulting in gainbandwidth product degradation.…”

Section: Introductionmentioning

confidence: 99%

Quadrature oscillator based on novel low-voltage ultra-low-power quasi-floating-gate DVCC

et al. 2017

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In this work, a new realization topology of the low-voltage ultra-low-power quadrature oscillator is presented. This quadrature oscillator utilizes only two active elements, namely differential voltage current conveyor (DVCC), and five passive ones, all of them are grounded, which is recommended for the integrated circuit implementation. The DVCC is based on quasi-floating-gate MOS transistor, which is a distinct technique from the conventional one, featuring with operation at low-voltage and ultra-low-power conditions; hence the proposed DVCC works with low supply voltage of ± 400 mV and consumes power of merely 6.6 µW. Thanks to these features the total power dissipation of the oscillator is only 0.28 mW. The simulation results using 0.18 µm TSMC CMOS technology are included in order to prove the design correctness.

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“…Low frequency filter processing biomedical signals [1][2] from a few Hz to hundreds Hz requires a large time constant. In order to implement a large time constant, a large capacitance and a large resistance are needed [3].…”

Section: Introductionmentioning

confidence: 99%

Design of a floating-type impedance scaling circuit for large capacitances

Matsumoto

Fujii

Nishioka

et al. 2013

2013 International Symposium on Intelligent Signal Processing and Communication Systems

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Impedance scaling technique is known as a method to reduce chip area of large capacitances for low frequency integrated filters. The conventional technique realizes only grounded low impedance components. This paper proposes a construction of a floating-type impedance scaling circuit. The proposed circuit can be applied to various low frequency analog circuits. The validity of the proposed circuit is confirmed by simulation of a biquad filter employing the proposed circuit.

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Design of Low-Frequency Low-Pass Filters for Biomedical Applications

Cited by 25 publications

References 11 publications

A New Floating and Tunable Capacitance Multiplier With Large Multiplication Factor

A New Floating and Tunable Capacitance Multiplier With Large Multiplication Factor

Quadrature oscillator based on novel low-voltage ultra-low-power quasi-floating-gate DVCC

Design of a floating-type impedance scaling circuit for large capacitances

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