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Journals / Hittite Journal of Science and Engineering / 2026 / Volume: 13 Issue: 2

Single Active Element Based Capacitance Multipliers for Speech Processing and Ultrasound Applications

Burak Sakaci(MİLLİ SAVUNMA ÜNİVERSİTESİ, HAVA HARP OKULU)0009-0003-5803-8482
Deniz Özenli(MİLLİ SAVUNMA ÜNİVERSİTESİ, HAVA HARP OKULU)0000-0002-6381-3629
Hakan Kuntman(ISTANBUL TECHNICAL UNIVERSITY)0000-0002-1107-5601
Pages
—
Publication Date
2026-06-30
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Additionally, this study includes a comprehensive noise analysis of both capacitance multiplier based filters, demonstrating their effectiveness in low frequency and biomedical signal processing environments.

📌 3 Key Takeaways

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Objective & Hypothesis:This study presents a detailed evaluation of two capacitance multiplier configurations with a focus on noise optimization in second order low pass filters.
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Key Findings & Data:In the MO-VDTA based design, the multiplication factor ranges from 120 to 750 (CB= 1pF), controlled by the bias current IB.
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Conclusion & Impact:Additionally, this study includes a comprehensive noise analysis of both capacitance multiplier based filters, demonstrating their effectiveness in low frequency and biomedical signal processing environments.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Capacitor multiplier · noise analysis · biomedical applications

Abstract

This study presents a detailed evaluation of two capacitance multiplier configurations with a focus on noise optimization in second order low pass filters. The proposed multipliers are based on MO-VDTA (Multi Output Voltage Differencing Transconductance Amplifier) and MO-CDTA (Multi Output Current Differencing Transconductance Amplifier) architectures. In the MO-VDTA based design, the multiplication factor ranges from 120 to 750 (CB= 1pF), controlled by the bias current IB. The designed filter provides a tunable cut-off frequency ranging from 2 kHz to 12.4 kHz (CB= 1pF). In additon, the MO-CDTA based structure enables the multiplication factor ‘k’ to be adjusted between 400 and 1250 (CB= 2pF) by varying the gate-source voltage (VGS) of an external PMOS transistor connected to the Z terminal. This configuration is used in a low pass filter with a tunable cut-off frequency between 23.6 kHz and 91 kHz (CB= 2pF), suitable for ultrasound applications. Additionally, this study includes a comprehensive noise analysis of both capacitance multiplier based filters, demonstrating their effectiveness in low frequency and biomedical signal processing environments.

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Cite This Article

Sakaci, B., Özenli, D., Kuntman, H. (2026). Single Active Element Based Capacitance Multipliers for Speech Processing and Ultrasound Applications. Hittite Journal of Science and Engineering, Volume: 13 Issue: 2. https://doi.org/10.17350/HJSE19030000375

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References (21)

  1. Kumar A, Singh D, Nand D. A novel CFDITA-based design of grounded capacitance multiplier and its transpose structure. Circuits, Syst., Signal Process. 2022 Oct;41(10):5319-39.
  2. Tang Y, Ismail M, Bibyk S. Adaptive Miller capacitor multiplier for compact on-chip PLL filter. Electron. Lett. 2003 Jan;39(1):43-5.
  3. Al-Absi M, Ahmad M, Al-Khulaifi AA. A new floating and tunable capacitance multiplier with large multiplication factor. IEEE Access. 2019;7:120076-81.
  4. Stillmaker A, Baas B. Scaling equations for the accurate prediction of CMOS device performance from 180 nm to 7 nm. Integration. 2017;58:74-81.
  5. Cantoya IP. Low-power high parallel load resistance current-mode grounded and floating capacitor multiplier. IEEE Trans. Circuits Syst. II, Exp. Briefs. 2013 Jan;60(1):16-20.
  6. Stornelli V, Safari L, Barile G, Ferri G. A new extremely low power temperature insensitive electronically tunable VCII-based grounded capacitance multiplier. IEEE Trans. Circuits Syst. II, Exp. Briefs. 2021 Jan;68(1):72-6.
  7. Cantoya IP. Capacitor multiplier with wide dynamic range and large multiplication factor for filter applications. IEEE Trans. Circuits Syst. II, Exp. Briefs. 2013 Mar;60(3):152-6.
  8. Al-Absi MA, Abulema’atti MT. A tunable floating impedance multiplier. Arab. J. Sci. Eng. 2019 Aug;44(8):7085-9.
  9. Yesil A, Yuce E, Minaei S. Grounded capacitance multipliers based on active elements. AEU - Int. J. Electron. Commun. 2017;79:243-9.
  10. Yucehan T, Yuce E. A new grounded capacitance multiplier using a single ICFOA and a grounded capacitor. IEEE Trans. Circuits Syst. II, Exp. Briefs. 2022 Mar;69(3):729-33.
  11. Sakaci B, Ozenli D, Kuntman HH. Different capacitance multiplier structures with noise analyses for low frequency applications. In: Proc. 15th Nat. Conf. Electr. Electron. Eng. (ELECO). 2024 Sep 27- 29; Bursa, Turkey. Piscataway (NJ): IEEE; 2024. p. 1-5.
  12. Ozenli D, Alaybeyoglu E. An electronically tunable CMOS implementation of capacitance multiplier employing CCCDTA. AEU - Int. J. Electron. Commun. 2022;155:154359.
  13. Özer E. Electronically tunable CFTA based positive and negative grounded capacitance multipliers. AEU - Int. J. Electron. Commun. 2021;134:153685.
  14. Ozenli D, Alaybeyoglu E, Kuntman H. A tunable lossy grounded capacitance multiplier circuit based on VDTA for the low frequency operations. Analog Integr. Circuits Signal Process. 2022;113(2):163-70.
  15. Dogan M, Yuce E. A new CFOA based grounded capacitance multiplier. AEU - Int. J. Electron. Commun. 2020;115:153034.
  16. Ferri G, Safari L, Barile G, Scarsella M, Stornelli V. New resistor-less electronically controllable ±C simulator employing VCII, DVCC, and a grounded capacitor. Electronics. 2022;11(2):286.
  17. Cantoya IP, Gurrola-Navarro MA, Bonilla-Barragan CA, Molinar-Solis JE, Rizo-Dominguez L, et al. Impedance-mode capacitance multiplier with OTA-based flipped voltage follower for high accuracy and large multiplication factor. IEICE Electron. Express. 2022;19(19):20220208.
  18. Sakacı B, Ozenli D. A current mode capacitance multiplier employing a single active element based on Arbel-Goldminz cells for low frequency applications. Microelectron. Eng. 2024;288:112157.
  19. Petrović PB. Single VDTA-based lossless and lossy electronically tunable positive and negative grounded capacitance multipliers. Circuits Syst. Signal Process. 2022;41(12):6581-614.
  20. Sakacı B. The Design of Active Element Based Capacitor Multipliers and Low Frequency Applications [dissertation]. Istanbul (TR): National Defence University, Atatürk Institute of Strategic Studies; 2025.
  21. Sakacı B, Ozenli D. Noise Analysis For Active Element Based Capacitor Multipliers. Hittite Journal of Science and Engineering. 2024; 11(4): 157-167.